ABSTRACT
ABSTRACT Five new species of Alisotrichia Flint, 1964 microcaddisflies are described and illustrated from type material collected in Northeastern Brazil, constituting the first records of the genus to this region, as it was previously known only from Southeastern and Northern Brazil. The number of Brazilian species of Alisotrichia is doubled herein from five to ten, however, likely there are still many other species to be described. The new species described here are all placed in the orophila species group: A. froehlichi sp. nov. (Sergipe State), A. calori sp. nov. (Bahia and Paraíba states), A. penispinata sp. nov. (Ceará and Pernambuco states), A. dilatata sp. nov. (Ceará and Mato Grosso do Sul states), and A. nordestina sp. nov. (Ceará and Sergipe states). These new species are separated mainly by features of male genitalia, particularly the dorsal area of segment X, the shape of the segment VIII, and the phallus morphology. Currently, the orophila species group is composed by 37 species, more than half of the species diversity of Alisotrichia.
ABSTRACT
ABSTRACT Onega comprises nine valid species distributed in South American countries, Bolivia, Colombia, Ecuador, Paraguay and Peru, commonly at high altitudes. The genus has as diagnostic characteristics the transition crown-frons with transversal carina; crown and superior portion of frons with concavities; pronotum wider than transocular width of head; and paraphysis, when present, as a median esclerite. The present paper describes Onega musa sp. nov., from Ecuador and Peru, which can be distinguished from other Onega species by: body mostly yellow, with brown maculae distributed on dorsum; posterior margin of male pygofer serrate, with long microsetae on the basiventral margin; aedeagus with shaft bisinuate with dorsal acute preapical process; female sternite VII with posterior margin slightly convex; and first valvula of ovipositor with 38 noncontiguous teeth. Intraspecific morphological variations are discussed.
ABSTRACT
ABSTRACT A second species of Angucephala DeLong & Freytag, 1975 is described and illustrated from Ecuador, A. freytagi sp. nov. (Napo Province). This species can be distinguished from the type species (A. mellana DeLong & Freytag, 1975) mainly by features of the male pygofer and styles. A redescription of the genus and illustrations of the type species are also provided.
ABSTRACT
When rare is just a matter of sampling: Unexpected dominance of clubtail dragonflies (Odonata, Gomphidae) through different collecting methods at Parque Nacional da Serra do Cipó, Minas Gerais State, Brazil. Capture of dragonfly adults during two short expeditions to Parque Nacional da Serra do Cipó, Minas Gerais State, using three distinct collecting methodsaerial nets, Malaise and light sheet trapsis reported. The results are outstanding due the high number of species of Gomphidae (7 out of 26 Odonata species), including a new species of Cyanogomphus Selys, 1873, obtained by two non-traditional collecting methods. Because active collecting with aerial nets is the standard approach for dragonfly inventories, we discuss some aspects of the use of traps, comparing our results with those in the literature, suggesting they should be used as complementary methods in faunistic studies. Furthermore, Zonophora campanulata annulata Belle, 1983 is recorded for the first time from Minas Gerais State and taxonomic notes about Phyllogomphoides regularis (Selys, 1873) and Progomphus complicatus Selys, 1854 are also given.
ABSTRACT
Aurigoniella meridionalis, sp. nov. is described and illustrated from Morretes and São José dos Pinhais, Paraná State, southern Brazil. It can be easily distinguished from the Aurigoniella type-species, A. dutrai, by its distinct color pattern, smaller size, shorter crown, hindleg knees attaining lateral lobe of pronotum, aedeagus broadest height around mid-length, and paraphyses ramus biramous.
Aurigoniella meridionalis, sp. nov. é descrita e ilustrada de Morretes e São José dos Pinhais, Paraná, sul do Brasil. Ela pode ser diferenciada da espécie-tipo de Aurigoniella, A. dutrai, por seu padrão de coloração distinto, menor tamanho, coroa mais curta, joelhos das pernas posteriores atingindo o lobo lateral do pronoto, edeago com altura mais larga na metade da haste e ramos da paráfise birramados.