Filling in a biogeographic gap: the first Trichomycteridae from the Parnaíba River basin (Siluriformes: Trichomycteridae)

Trichomycterid catfishes have long been considered as absent in the Parnaíba River basin, Northeastern Brazil, in what constitutes their most conspicuous gap in geographic distribution. Herein we report on the first occurrence of the family in that basin. The new species is described from the riacho da Volta, right tributary to the upper rio Parnaíba, Piauí State. It is distinguished from its congeners by the combination of two or three pairs of ribs; 36­38 post Weberian vertebrae; a color pattern composed of round, similar-sized, non-coalescent spots; I,5 pectoral-fin rays; the first haemal arch on the 5th or 6th vertebrae; and the first completely fused (to the tip) haemal spine on the 15th vertebra. A putative autapomorphy is the partial (minimally 50% of their length) or total fusion between the anterior arms of the basipterygium. Preliminary evidence suggests that the new species can be related to northern South American forms, a pattern that fits the general Amazonian relationships of the fishes in the Parnaíba River drainage. Although the new species fills in an important qualitative gap in trichomycterid continental distribution, the taxon is apparently rare and extremely restricted in distribution, with the type series being its only record so far. The paucity of trichomycterids in the Parnaíba remains a puzzling biogeographical phenomenon.(AU)

Os bagres tricomicterídeos têm estado surpreendentemente ausentes na bacia do rio Parnaíba, Nordeste do Brasil, no que constitui sua lacuna mais evidente na distribuição. Relatamos a primeira ocorrência da família na bacia. A espécie nova é descrita do riacho da Volta, tributário do lado direito do alto rio Parnaíba em Uruçuí, Piauí. Ela é distinguida de suas congêneres pela combinação de dois ou três pares de costelas; 36­38 vértebras pós weberianas; padrão de coloração composto de manchas arredondas, de tamanhos semelhantes e não coalescentes; I,5 raios nas nadadeiras peitorais; o primeiro arco haemal na 5° ou 6° vértebra, e o primeiro espinho haemal completamente fusionado (até a extremidade) na 15° vértebra. Uma possível autapomorfia é a fusão parcial (mínimo de 50% do seu comprimento) ou total entre os braços anteriores do basiopterígio. Evidências preliminares sugerem que a espécie nova pode estar relacionada com as formas do norte da América do Sul, padrão que se encaixa nas relações amazônicas dos peixes da drenagem do rio Parnaíba. Embora a espécie nova preencha uma importante lacuna na distribuição continental dos tricomicterídeos, o táxon é aparentemente raro e extremamente restrito em distribuição, sendo a série-tipo seu único registro até o momento.(AU)

New species of the genus Rhodorhipha Laguerre, 2018 (Lepidoptera: Arctiini) from Peruvian Amazon

A new species Rhodorhipha dalyi sp. nov. from Peru (Tambopata river, Madre de Dios, Peru) is described and illustrated. The species is part of a complex of similar species related to R. subflammans (Rothschild).

Se describe e ilustra una nueva especie, Rhodorhipha dalyi sp. nov. de Perú (río Tambopata, Madre de Dios, Perú). La especie es parte de un complejo de especies similares relacionadas con R. subflammans (Rothschild).

A new species of Paranthaclisis Banks (Neuroptera, Myrmeleontidae) from the Peninsula of Baja California, Mexico

ABSTRACT Paranthaclisis stangei Marquez, Martins, and Contreras, sp. n., is a new myrmeleontid from Baja California Sur state, Baja California Peninsula, Mexico, which is an important area of endemism. After this new discovery, the genus Paranthaclisis is composed by five species, three occurring in Mexico. This new species is easily identified by a rostrum completely yellowish-white, an area of pre-origin of RP with spurial vein on hindwing and with marks; males are easily separated by the conspicuous posterior thinning of the parameres and mediuncus dorsally without teeth and a basomedial split.

A new species of Podanotum Torres & Johnson, 1996 (Lepidoptera, Lycaenidae) from northern Peru / Una nueva especie de Podanotum Torres & Johnson, 1996 (Lepidoptera, Lycaenidae) en el norte de Perú

Abstract We describe a new species of the genus Podanotum Torres & Johnson, 1996, Podanotum pajaten Farfán, Cerdeña & Bálint sp. nov. from northern Peru, associated with the Andean treeline ecotone adjacent to cloud forest and wet grassland at 3200 m above sea level. Description of this new species is based on one female adult and is distinguishable from its congeners by the combination of the following morphological characters: dorsal wing pale blue, forewing discoidal line present on ventral side, hindwing tailed, and ostium bursae distally toothed. Podanotum pajaten sp. nov. is separated geographically from the closest spatial species, P. glorissimum Bálint & Wojtusiak, 2002, by approximately 100 km to the south, and represents the second species described for Peru. An identification key to all known species of Podanotum is provided, stating their distributions by country.

Resumen Se describe una nueva especie del género Podanotum Torres & Johnson, 1996, Podanotum pajaten Farfán, Cerdeña & Bálint sp. nov. del norte de Perú, asociada al ecotono andino entre bosque nublado y pastizal húmedo a 3,200 metros de altitud. La descripción de esta nueva especie está basada en una hembra adulta que se distingue de sus congéneres por la combinación de los siguientes caracteres morfológicos: vista dorsal de las alas de color azul pálido, línea postdiscal del ala anterior presente en vista ventral, cola corta en ala posterior, y parte distal del ostium bursae dentada. Podanotum pajaten sp. nov. está separada geográficamente de la especie espacialmente más cercana, P. glorissimum Bálint & Wojtusiak, 2002, por aproximadamente 100 km hacia el sur, y representa la segunda especie descrita de Perú. Una clave de identificación es presentada para todas las especies conocidas de Podanotum, con indicación de los países de ocurrencia.

Three new species of Acanthocephala from Acanthogyrus (Acanthosentis) (Acanthocephala: Quadrigyridae) from tinfoil barb fish, Barbonymus schwanenfeldii in Lake Kenyir, Terengganu, Malaysia

@#This study was carried out in order to identify acanthocephalan species complexes, based on morphological variability, infecting Barbonymus schwanenfeldii from Lake Kenyir, Terengganu, Malaysia. Acanthocephala were fixed in ethanol, stained with aceto-carmine and studied morphologically by using a light microscope. Variation in morphological traits such as proboscis, proboscis receptacle, egg, testes shape and location, number of hooks and cement gland has been traditionally used to diagnose the acanthocephalans species but the delimitations between closely related species are still confusing and are always questionable among taxonomists. Molecular analysis was used for support the identification. Morphological variability prospecting reveals the presence of three different new species complexes from the subgenus Acanthosentis by referring published taxonomic keys. These new species may be distinguished from the other 46 described species of Acanthosentis by having six unique structures: the presence of an anterior parareceptacle structure (PRS); vaginal sleeve structure; a paired lateral, cone-shaped, muscular jacket surrounding the vagina; alternating pattern and size of proboscis hooks, variation in proboscis size and shape; the presence of the circular collar ring around the neck between the proboscis and trunk and lastly the presence of a muscular-like structure attached to the collar ring on the proboscis. These acanthocephalans found in the intestine of B. schwanenfeldii in Kenyir Lake Malaysia represent new species, named Acanthogyrus (Acanthosentis) kenyirensis n.sp., A. (A.) terengganuensis n.sp. and A. (A.) tembatensis n. sp.

A new species and four newly recorded species of black flies (Diptera: Simuliidae) from Bhutan

@#Simulium (Simulium) thimphuense sp. nov. is described from a pupa and a mature larva in Bhutan. This new species is placed in the S. multistriatum species-group, and is characterized by the pupal gill with eight thread-like filaments divergent basally at an acute angle when viewed laterally and the cocoon slipper-shaped with several small openings anterolaterally. Four species of Simulium (Simulium) are newly recorded from Bhutan: S. barraudi Puri in the S. multistriatum species-group, S. nodosum Puri in the S. nobile species-group, S. chiangmaiense Takaoka & Suzuki in the S. striatum species-group and S. himalayense Puri in the S. variegatum species-group. Our study increases the number of black fly species known from Bhutan from 18 to 23.

A new species of cockroach, Periplaneta gajajimana sp. nov., collected in Gajajima, Kagoshima Prefecture, Japan

@#We described a new species of cockroach, Periplaneta gajajimana sp. nov., which was collected in Gajajima, Kagoshima-gun Toshimamura, Kagoshima Prefecture, Japan, on November 2012. The new species is characterized by its reddish brown to blackish brown body, smooth surface pronotum, well developed compound eyes, dark brown head apex, dark reddish brown front face and small white ocelli connected to the antennal sockets. In male, the tegmen tip reach the abdomen end or are slightly shorter, while in the female, it does not reach the abdominal end and exposes the abdomen beyond the 7th abdominal plate. We confirmed the validity of this new species by breeding the specimens in our laboratory to demonstrate that the features of the progeny were maintained for several generations. For comparison and easy identification of this new species, the key to species identification of the genus Periplaneta that had been reported in Japan to date are also presented.

Tabanidae (Diptera) of Peru: checklist update and description of three new species / Tabanidae (Diptera) del Perú: lista actualizada y descripción de tres nuevas especies

Abstract We provide an update to the list of the species of Tabanidae known from Peru, along with descriptions of three new species: Diachlorus tenuimaculatus n. sp., Stenotabanus (Stenotabanus) carrascoi n. sp. and Stenotabanus (Stenotabanus) chaineyi n. sp., bringing to 233 the species of Tabanidae now known from Peru.

Resumen Se realizó una actualización de la lista de especies de Tabanidae del Perú y se describen tres nuevas especies, Diachlorus tenuimaculatus sp. n., Stenotabanus (Stenotabanus) carrascoi sp. n., y Stenotabanus (Stenotabanus) chaineyi sp. n., con ellas, suman 233 especies de Tabanidae registradas para Perú.

Descripción de una nueva especie peruana del género Mummucina (Solifugae: Mummuciidae) / Description of a new Mummucina species (Solifugae: Mummuciidae) from Peru

Resumen Se describe e ilustra una nueva especie de Mummuciidae, Mummucina chaskae, colectada en el departamento de Huánuco, Perú, a 1946 m.s.n.m. Con esta descripción, el número de especies conocidas de Mummucina se eleva a cinco en general y a tres en el Perú.

Abstract A new species of Mummuciidae, Mummucina chaskae, collected at 1946 m.a.s.l. in the department of Huanuco, Peru, is described and illustrated. With this description, the number of known species of Mummucina rises to five for the genus and to three for Peru.

Aracnofauna (Arachnida) de la Isla del Coco, Costa Rica, con la descripción de tres nuevas especies

Introducción: Los arácnidos de la isla del Coco representan 50 especies, ubicadas en seis órdenes y 26 familias. El trabajo de actualización del conocimiento de la fauna de este grupo de animales en la isla inició no sistemáticamente hace más de 127 años, donde un escorpión se convirtió en el primer espécimen citado del grupo. Objetivo: Actualizar la lista de especies de arácnidos para la Isla del Coco, aportando nueva información sobre taxones poco conocidos y describiendo nuevas especies. Métodos: Durante dos expediciones, llevadas a cabo del 11 al 22 de abril 2013 y del 8 al 18 julio 2017, se recolectaron arácnidos con métodos manuales y trampas, se preservaron en etanol y se realizaron las identificaciones en laboratorio. Los rangos de distribución están basados en el catálogo de arañas del mundo, las identificaciones realizadas, se respaldan en la literatura específica citada para cada caso y las sugerencias biogeográficas presentadas de los grupos o especies tratadas, surgen del análisis de los patrones de distribución general que presenta el género o grupo citado. Resultados: Los hallazgos principales incluyen la adición de nuevos registros de especies para la isla, un orden, 11 familias y 29 especies, de las cuales tres son nuevas para la ciencia. Conclusiones: Es necesario continuar con el inventario de la aracnofauna de la isla, principalmente en los sectores que no han podido ser previamente muestreados. A nivel biogeográfico la fauna de arañas que habita la isla está mayormente relacionadas con Centroamérica, mientras que las especies de hábitos cosmopolitas posiblemente sean de reciente introducción.

Introduction: The arachnids of Isla del Coco represent 50 species, located in six orders and 26 families. The work of updating the knowledge of the fauna of this group of animals on the island began not systematically more than 127 years ago, where a scorpion became the first specimen cited in the group. Objective: To update the list of arachnid species for Coco Island, providing new information about little-known taxa and describing new species. Methods: During two expeditions, carried out from April 11 to 22, 2013 and from July 8 to 18, 2017, arachnids were collected with manual methods and traps, preserved in ethanol and identified in the laboratory. The distribution ranges are based on the spiders catalog of the world, the identifications made, are supported by the specific literature cited for each case and the biogeographical suggestions presented of the groups or species treated, arise from the analysis of the general distribution patterns that presents the genus or group cited. Results: The main findings include the addition of new species records for the island, one order, 11 families and 29 species, of which three are new to science. Conclusions: It is necessary to continue with the inventory of the island fauna, mainly in the sectors that could not be previously sampled. At the biogeographical level, the spider fauna that inhabits the island is mostly related to Central America, while the species with cosmopolitan habits are possibly of recent introduction.

Hepatozoon pyramidumi sp. n. (Apicomplexa: Adeleorina) from the blood of Echis pyramidum: morphology and SSU rDNA sequence / Hepatozoon pyramidumi sp. n. (Apicomplexa: Adeleorina) do sangue de Echis pyramidum: morfologia e sequência de SSU rDNA

Abstract Hepatozoon pyramidumi sp. n. is described from the blood of the Egyptian saw-scaled viper, Echis pyramidum, captured from Saudi Arabia. Five out of ten viper specimens examined (50%) were found infected with Hepatozoon pyramidumi sp. n. with parasitaemia level ranged from 20-30%. The infection was restricted only to the erythrocytes. Two morphologically different forms of intraerythrocytic stages were observed; small and mature gamonts. The small ganomt with average size of 10.7 × 3.5 μm. Mature gamont was sausage-shaped with recurved poles measuring 16.3 × 4.2 μm in average size. Infected erythrocytes were hypertrophied; their nuclei were deformed and sometimes displaced from their central position in the normal uninfected cell. Merogonic stages were observed in the lung endothelial cell and the liver parenchyma cells. Mature meront was 17.8 × 13.6 µm and contained banana-shaped merozoites with average size of ~15 × 2 µm. Phylogenetic analysis based on the SSU rDNA sequence clustered Hepatozoon pyramidumi sp. n with previously sequenced Hepatozoon spp., most of them infected reptilian hosts without geographic consideration. The morphological and molecular comparison with closely related species proved the taxonomic uniqueness and novelty of the present form.

Resumo Hepatozoon pyramidumi sp. n. é descrito a partir do sangue da víbora em escamas e quilhas serrilhadas, Echis pyramidum, capturada na Arábia Saudita. Cinco de dez espécimes de víbora examinadas (50%) foram encontradas infectadas com Hepatozoon pyramidumi sp. n. com nível de parasitemia de 20% a 30%. A infecção foi restrita apenas aos eritrócitos. Foram observadas duas formas morfologicamente diferentes de estágios intra-eritrocíticos: gamontes de tamanho pequeno e madura. As formas menores de gamontes apresentaram média de 10,7 × 3,5 μm. Os gamontes maduros apresentaram forma de salsicha, com pequenos polos recurvados, medindo 16,3 × 4,2 μm, em média. Os eritrócitos infectados estavam aumentados de tamanho; seus núcleos encontravam-se deformados e, algumas vezes, deslocados de sua posição central, quando comparados às células normais não-infectadas. Foram observados estágios merogônicos em células endoteliais pulmonares e nas células do parênquima hepático. Os merontes maduros apresentavam 17,8 × 13,6 µm e continham merozoítos em forma de banana com tamanho médio de ~ 15 × 2 µm. A análise filogenética baseada nas sequências SSU rDNA agrupou Hepatozoon pyramidumi sp. n com Hepatozoon spp. detectados em répteis de várias regiões geográficas. Por meio de análises morfológicas e moleculares com espécies intimamente relacionadas, demonstrou-se a singularidade dessa nova espécie de Hepatozoon.

New species of Trichuris (Nematoda: Trichuridae) parasitizing Heteromys salvini (Rodentia: Heteromyidae) from Costa Rica, with a key to Trichuris species described from Heteromyidae / Nova espécie de Trichuris (Nematoda: Trichuridae) de Heteromys salvini (Rodentia: Heteromyidae) na Costa Rica, com uma chave para as espécies de Trichuris descritas em Heteromyidae

Abstract Trichuris guanacastei n sp., a parasite isolated from the Salvin' spiny mouse Heteromys salvini, collected from the Guanacaste Conservation Area, Costa Rica, during February 1996 is described. The new species was compared morphologically with the 29 known species that parasitize rodents distributed in 12 families in North and South America; T. guanacastei n. sp. it is characterized by the following set of traits: presence of a spicular tube (measuring 0.72-0.99); thick proximal cloacal tube and a short distal cloacal tube with a total length of 0.72-1.36; eggs 0.03-0.05 long and a semi-protrusible vulva. The new species represents the first one described in the genus in Costa Rica and the fifth one described in the Americas that parasite Heteromyidae.

Resumo O objetivo deste estudo foi descrever Trichuris guanacastei n. sp., um parasita isolado do rato espinhoso de Salvin, Heteromys salvini, coletado na Área de Conservação de Guanacaste, Costa Rica, durante fevereiro de 1996. A nova espécie foi comparada morfologicamente a 29 espécies conhecidas que parasitam roedores, distribuídas em 12 famílias na América do Norte e do Sul. T. guanacastei n. sp. é caracterizado pelo seguinte conjunto de características: presença de um tubo espicular (que mede 0.72-0.99); tubo proximal cloacal e um tubo distal cloacal com uma longitude total de 0.72-1.36; ovos de 0.03-0.05 de largura e uma vulva semi-protrusible. A nova espécie representa a primeira descrita do gênero na Costa Rica e a quinta descrita nas Américas que parasita Heteromyidae.

Revision of the rare anthidiine bee genus Rhynostelis Moure & Urban (Hymenoptera, Apidae)

Abstract The bee genus Rhynostelis Moure & Urban, a cleptoparasite taxon restricted to the Neotropical Region, was previously known from a single species. In the present work, the genus is revised, with three species recognized, of which two are described as new: Rhynostelis chrysogaster sp. nov. and Rhynostelis plesiognatha sp. nov. from Panamá and Brazil, respectively. Misidentification of the type species, Rhynostelis multiplicata (Smith, 1879), in previous works is pointed out and discussed. Diagnosis, illustrations and an identification key for the three recognized species are also provided.

A new species of Cruzia (Ascaridida; Kathlanidae) parasitizing Salvator merianae (Squamata, Teiidae) from the Atlantic forest in Brazil / Uma nova espécie de Cruzia (Ascaridida; Kathlanidae) parasitando Salvator merianae (Squamata, Teiidae) de Mata Atlântica no Brasil

Abstract Cruzia lauroi sp. nov. is described from Salvator merianae (Duméril & Bibron, 1839) (Squamata; Teiidae). The new species differs from all previously described species through several morphological characteristics: number of tooth like structures per row in the inner pharynx; and presence of unpaired papillae on the anterior border of the cloacal aperture. However, Cruzia lauroi sp. nov. is closest to C. tentaculata (Rudolphi, 1819), through having similar distribution of male caudal papillae, unpaired pre-cloacal papillae and females with an pre-equatorial vulva. Cruzia lauroi sp. nov. differs from C. tentaculata regarding smaller total body length of individuals, higher number of tooth like structures per row in the pharynx, greater size of diverticulum, smaller size of spicules and a more anterior vulva than in C. tentaculata; and the males do not have caudal alae. Cruzia mazza, C. travassosia, C. mexicana and C. testudines were considered to be species inquirendae, because their descriptions need more detailed taxonomic studies.

Resumo Cruzia lauroi sp. nov. é uma nova espécie descrita em Salvator merianae (Duméril & Bibron, 1839) (Squamata; Teiidae). Essa nova espécie difere de todas as espécies descritas anteriormente por diferentes características morfológicas: pelo número de dentes por coluna longitudinal interna na faringe; pela presença de papila ímpar na borda anterior da cloaca. Entretanto, Cruzia lauroi sp. nov. possui similaridades com C. tentaculata (Rudolphi, 1819), por ter distribuição semelhante das papilas caudais dos machos, por possuir papila pré-cloacal ímpar e por possuir fêmeas com vulva pré-equatorial. Cruzia lauroi sp. nov. se difere de C. tentaculata em relação ao menor comprimento total do corpo dos indivíduos, pelo maior número de dentes por coluna longitudinal interna na faringe; pelo maior tamanho de divertículo; pelo menor tamanho de espículos; por possuir fêmeas com vulva mais próxima a extremidade anterior do que observado em fêmeas de C. tentaculata; e pelos machos não possuírem asa caudal. Cruzia mazza, C. travassosia, C. mexicana e C. testudines foram consideradas species inquirendae, pelo fato de suas descrições necessitarem de maior detalhamento taxonômico.

Protocirrineris (Polychaeta:Cirratulidae) in South Africa and description of two new species

Introduction: The knowledge of polychaetes in the subtropical region of Africa benefited from the activity of J. Day. However, 50 years after the publication of his Monograph of the Polychaeta of southern Africa, it is necessary to reconsider the identity of the Cirratulidae due to changes in the diagnostic characters and new approaches to the taxonomy of the group to corroborate the status of cosmopolitan species in this region. Objective: We hypothesize that biodiversity of multitentacular Cirratulidae polychaetes has been significantly underestimated in southern Africa. Methods: The present work analyzes material deposited in the Iziko museum, as well as recently collected specimens, using scanning electron microscope to identify them. Results: The material corresponds to two new species belonging to the genus Protocirrineris. Protocirrineris strandloperarum sp. nov. is characterized by having the tentacular filaments between the chaetigers 5 to 10-12 and the first pair of branchiae from chaetiger 7, and P. magalhaesi sp. nov. is characterized by having tentacular filaments between chaetigers 4-8 and the first pair of branchiae from chaetigers 2 or 3. Descriptions of these species, with light and scanning electron microscope images, are given. Schematic drawings of the two new species are shown comparatively with diagnostic characters. Conclusions: The use of new techniques enables discovery of new taxonomic characters and two new species of the genus. The diversity of Cirratulidae polychaetes is underestimated also in the subtropical and tropical regions of Africa.

Introducción: El conocimiento de los poliquetos de la región subtropical de África fue logrado gracias a John Day. Sin embargo, 50 años después es necesario reconsiderar la identidad de los Cirratulidae, debido a los cambios en los caracteres diagnósticos y a las nuevas herramientas de análisis. Objetivo: Nuestra hipótesis es que la biodiversidad de los poliquetos cirratulidos multitentaculares ha sido subestimada significativamente en el sur de África. Métodos: El trabajo actual analiza muestras tomadas recientemente y material depositado en el museo de Iziko con microscopia electrónica de barrido para su identificación. Resultados: El material corresponde a dos especies nuevas, Protocirrineris strandloperarum sp. nov. y Protocirrineris magalhaesi sp. nov. Una imagen esquemática con los caracteres diagnósticos es dada para las especies descriptas en este trabajo. Conclusiones: el uso de nuevas técnicas permitió descubrir nuevos caracteres diagnósticos y dos nuevas especies del género. La diversidad de Cirratulidae también está subestimada en la región subtropical y tropical de África.

Two new species of Protocirrineris (Polychaeta: Cirratulidae) from Brazil

Introduction: Brazil has more than 8 000 km of coastline but its marine invertebrates are still poorly known. The cirratulid polychaetes have been an especially neglected group because of its challenging taxonomy. Objective: To describe a new species of Protocirrineris. Methods: In a recent survey in two of the largest Brazilian bays, Todos os Santos Bay and Camamu Bay, 84 specimens of four morphotypes of the multitentaculate genus Protocirrineris were collected. Because of the lack of modified chaetae, the taxonomy of Protocirrineris is challenging and only two of these morphotypes are herein described as new species. Results: These two new species are characterized by having tentacular filaments in two groups over chaetigers 3-4 and first branchiae present from chaetiger 1. They differ from each other in relation to the nature of the achaetigerous region, posterior region, ultrastructure of capillary chaetae and methyl green staining pattern. Two incomplete specimens are also considered as Protocirrineris, and brief descriptions are given. Conclusions: The genus Protocirrineris is cited for the first time in Brazil. Four new morphotypes were found in two large estuaries of Brazil, and two new species are formally described.

Introducción: Brasil tiene más de 8000 km de costa, pero sus invertebrados marinos aún son poco conocidos. Los poliquetos cirratulidos han sido un grupo especialmente descuidado debido a su desafiante taxonomía. Objetivos: Identificar morfotipos de Cirratulidae multitentaculados y encontrar nuevos caracteres diagnósticos. Métodos: En muestreo reciente en dos de las bahías más grandes de Brasil, Bahía de Todos los Santos y Bahía de Camamu, se colectaron cuatro morfotipos del género multitentaculado Protocirrineris. Resultados: Debido a la falta de quetas modificada, la taxonomía de Protocirrineris es un desafío y solo dos de estos morfotipos se describen aquí como nuevas especies. Estas dos nuevas especies se caracterizan por tener filamentos tentaculares en dos grupos sobre los quetígeros 3-4 y las primeras branquias presentes de quetígero 1. Se diferencian entre sí en relación con la naturaleza de la región sin quetas, región posterior, ultraestructura de las quetas capilares y el patrón de tinción con verde de metilo. Dos especímenes incompletos también se consideran Protocirrineris, y se dan breves descripciones. Conclusiones: Se cita por primera vez la presencia del género Protocirrineris en Brasil. Cuatro morfotipos del género han sido encontrados en dos grandes estuarios de Brasil. Dos especies nuevas para la ciencia son descriptas.

Taxonomic notes on social wasps of the groups of Mischocyttarus wagneri (Buysson 1908) and M. barbatus Richards 1945 (Hymenoptera, Vespidae, Polistinae)

ABSTRACT Taxonomic revisionary notes and identification keys are presented for two species-groups of wasps of the genus Mischocyttarus, subgenus Phi. Material of the M. wagneri and M. barbatus groups, including types, was examined in several collections, resulting in description of one new species for the first mentioned group (M. camanducaia sp. nov.), and several new synonymies for both groups as follows (senior synonym in bold): [Mischocyttarus mourei Zikán 1949 = Mischocyttarus laneiZikán 1949 = Mischocyttarus plaumanniZikán 1949]; [Mischocyttarus declaratusZikán 1935 = Mischocyttarus confirmatusZikán 1935 = Mischocyttarus brackmanniZikán 1949 = Mischocyttarus alternatusZikán 1949 = Mischocyttarus cabaunaZikán 1949]; [Mischocyttarus barbatus Richards 1945 = Mischocyttarus ecuadorensisZikán 1949 = Mischocyttarus pedunculariusZikán 1949]. In addition, several cases are demonstrated of changing in group content, with species being moved into and out of groups as required. Both groups are distributed on the highlands of Central and South America, with the M. wagneri group being endemic to southeastern areas of the continent.

A new species of Hexamermis Steiner, 1924 (Nematoda, Mermithidae) parasitizing Epilachna paenulata (Germar, 1824) (Coleopera, Coccinellidae) in Argentina / Una nueva especie de Hexamermis Steiner, 1924 (Nematoda, Mermithidae) parásito de Epilachna paenulata (Germar, 1824) (Coleopera, Coccinellidae) en Argentina

Hexamermis bonaerensis sp. n. a parasite of Epilachna paenulata (Germar, 1824) (Coleoptera, Coccinellidae) from Argentina is described. It is characterized by having the amphids medium sized, rounded oval shaped, the vagina muscularized and slightly protruding with a descending branch forming a loop before joining the uterus. It presents three rows of genital papillae: the ventrolateral in one row with thirteen papillae; the ventral row with two single, three pairs and two single preanal papillae, and with five pairs postanal papillae.

Se describe a Hexamermis bonaerensis sp. n. un parásito de Epilachna paenulata (Germar, 1824) (Coleoptera, Coccinellidae) en Argentina. Se caracteriza por tener los anfídios de tamaño mediano y de forma oval redondeada. La vagina es musculosa y ligeramente protuberante, con una rama descendente que forma un asa antes de unirse al útero. Presenta tres hileras de papilas genitales: la ventrolateral en una hilera con trece papilas; la hilera ventral con dos papilas preanales simples, tres pares y dos preanales únicas, y con cinco pares de papilas postanales.

Beetles (Coleoptera) of Peru: A Survey of the Families. Attelabidae Billberg, 1820 / Escarabajos (coleópteros) de Perú: un reconocimiento de las familias. Attelabidae Billberg, 1820

A new species, Omolabus (Sternolaboides) sokolovi Legalov n. sp. from Satipo, Central Peru, is described. New data for Hybolabus ater (Olivier, 1789), Omolabus (Perulabus) peruanus Legalov, 2004, O. (Pseudomolabus) westerduijni Legalov, 2008 and O. (Sternolaboides) ecuadorensis Legalov, 2007 are recorded. A verified species checklist of Peruvian Attelabidae based on literature and specimen examinations is presented. Distributions of 18 species from eight genera of two tribes found in the fauna of Attelabidae from Peru are given.

Se describe una nueva especie, Omolabus (Sternolaboides) sokolovi Legalov n. sp. de Satipo, centro de Perú. Se registran nuevos datos para Hybolabus ater (Olivier, 1789), Omolabus (Perulabus) peruanus Legalov, 2004, O. (Pseudomolabus) westerduijni Legalov, 2008 y O. (Sternolaboides) ecuadorensis Legalov, 2007. Basada en la literatura y exámenes de muestras, se elabora una lista de las 18 especies peruanas de Attelabidae, pertenecientes a ocho géneros de dos tribus, tambien se presentan sus distribuciones en Perú.

Revision of Bairdiella (Sciaenidae: Perciformes) from the western South Atlantic, with insights into its diversity and biogeography

The sciaenid genus Bairdiella comprises a group of relatively small fishes found in inshore waters and estuaries of the western Atlantic and eastern Pacific. Despite recent analyses of the phylogenetic relationships of Bairdiella, there has been no comprehensive revision of the alpha taxonomy of the species of the genus. Bairdiella ronchus from the western Atlantic, has a complex taxonomic history, with four junior synonyms recognized. Based on morphological and molecular evidence, this study indicates that B. ronchus represents a species complex. The species is therefore redescribed and its geographic range is redefined. Bairdiella veraecrucis, which is currently recognized as a junior synonym of B. ronchus, is revalidated, and a new species of the genus is described from the Atlantic coast of Brazil. Finally, inferences are made on the diversity and biogeography of the B. ronchus species complex.(AU)

O gênero Bairdiella compreende um grupo de peixes relativamente pequenos encontrados em águas costeiras e estuários do Atlântico ocidental e leste do Pacífico. Apesar das análises recentes das relações filogenéticas de Bairdiella, não houve revisão abrangente da taxonomia alfa das espécies do gênero. Bairdiella ronchus, do Atlântico ocidental, tem uma história taxonômica complexa, com quatro sinônimos juniores reconhecidos. Baseado em evidências morfológicas e moleculares, este estudo indica que B. ronchus representa um complexo de espécies. A espécie é, portanto, redescrita e seu alcance geográfico é redefinido. Bairdiella veraecrucis, atualmente reconhecida como sinônimo júnior de B. ronchus, é revalidada, e uma nova espécie do gênero é descrita na costa atlântica do Brasil. Finalmente, inferências são feitas sobre a diversidade e biogeografia do complexo de espécies de B. ronchus.(AU)