ABSTRACT
The genus Lebinthus Stål, 1877 (Orthoptera: Gryllidae: Eneopterinae: Lebinthini) in the Philippines is studied. New locality records are provided for L. bitaeniatus Stål, L. sanchezi Bolívar, L. polillensis Baroga, Yap Robillard, L. puyos Robillard, and L. luae Robillard Tan. Six new species are described from Mt. Porras, Sibalom (L. dannybaletei sp. nov.), Mt. Balatukan, Misamis Oriental (L. parvus sp. nov.), Mt. Empagatao, Misamis Oriental (L. palaceus sp. nov.), Tarumpitao, Palawan (L. hamus sp. nov.), Mt. Malinao, Albay (L. magayon sp. nov.), and Boracay, Aklan (L. boracay sp. nov.). A distribution map, a taxonomic key, and an updated checklist of the genus in the Philippines are also provided.
Subject(s)
Gryllidae , Animal Distribution , Animals , PhilippinesABSTRACT
Recent orthopteran sampling at Laguna in Luzon Island of the Philippines revealed noteworthy crickets from the subfamilies Landrevinae, Phaloriinae and Podoscirtinae. We describe one species new to science from the subfamily Podoscirtinae: Mnesibulus laguna n. sp. We record new locality and complete the genitalia description of Phaloria (Phaloria) modulator (Saussure, 1878), previously described with incomplete parts of genitalia in the holotype. We also differentiate Duolandrevus (Jorama) curtipennis Chopard, 1937 from Laguna which varies slightly from the subspecies from Palawan and Mindoro.
Subject(s)
Gryllidae , Animal Distribution , Animal Structures , Animals , Body Size , Islands , Organ Size , PhilippinesABSTRACT
Rhicnogryllus Chopard, 1925 is a small and relatively unknown group of Sword-tailed Cricket of the subfamily Trigonidiinae. This genus currently comprises 12 species from Asia, Africa (including Madagascar), South America and the Pacific. Species have been recognised by the presence of parallel and elevated veins in both males (which lack stridulatory organs) and females. However, this approach to classifying Trigonidiinae may be outdated and examination of male genitalia can offer better insights into the generic status of these species and how they are related or unrelated. By comparing male genitalia of new materials and old specimens, we describe a new species from the Philippines: Rhicnogryllus? paetensis n. sp., which is similar to the type species. Our hypothesis is that Rhicnogryllus is a non-monophyletic and artificial genus, and that the genus should comprise only Southeast Asian members (since the type species Rhicnogryllus fascipes Chopard, 1925 is known from the Philippines). We are cautiously against describing new genus to avoid adding more confusion until a comprehensive revision to the subfamily and Rhicnogryllus has been undertaken.
Subject(s)
Gryllidae , Animals , Female , Male , PhilippinesABSTRACT
Katydids from the subfamily Meconematinae sing at ultrasonic frequencies. Owing that many of them are nocturnal, elusive and low in abundance (since they are predatory), there is a dearth of information on these katydids and their bioacoustics, especially for species in the understudied yet mega-diverse Southeast Asia. Recent orthopteran surveys in Laguna, Luzon Island in the Philippines led to the discovery of two interesting Meconematinae katydids. Based on the collection, we describe a new species of Phisidini: Neophisis (Indophisis) montealegrei sp. nov. We also describe the male for the first time and redescribe the female of Asiophlugis philippina. The ultrasonic calling songs of both Meconematinae are also recorded, analysed and described here.
Subject(s)
Orthoptera , Animal Distribution , Animals , Female , Male , PhilippinesABSTRACT
The genus Paranisitra Chopard (Orthoptera: Gryllidae: Eneopterinae: Nisitrini) is reviewed. New records and additional descriptions are provided for P. longipes Chopard, P. leytensis Robillard, and P. septentria Baroga, Yap Robillard, and a new species is described from Mindanao: Paranisitra flavofacia n. sp. A taxonomic key and updated checklist of the genus Paranisitra in the world are also provided.
Subject(s)
Gryllidae , Orthoptera , Animal Distribution , Animals , PhilippinesABSTRACT
Two new species of Ornebius are described from Siargao Island, Mindanao of the Philippines: O. alvarezi sp. nov. and O. bioculatus sp. nov. These sympatric scaly crickets have diverging genitalia morphology, with O. alvarezi sp. nov. resembling congeners from Borneo whereas O. bioculatus sp. nov. resembling congeners from Sulawesi. With the new findings, the number of Ornebius species known from the Philippines increases to four.
Subject(s)
Orthoptera , Animal Distribution , Animal Structures , Animals , Borneo , Indonesia , Islands , PhilippinesABSTRACT
The taxonomy of Old World Trigonidiinae (sword-tailed crickets) is in need of major revision. This includes its type genus Trigonidium. Various authors have different opinions on what constitutes the subgenera and species of Trigonidium s. l. and this has led to considerable confusion and inconsistencies. Recent use of molecular data has helped make some progress in resolving some of these problems, but there are still limitations. In this paper, we aim to provide a baseline to resolve the confusion in the taxonomy of Trigonidium s. l. Firstly, we provide a literature review of the contentious taxa related to Trigonidium and also provide some recommendations on future work for Trigonidium s. l. Secondly, we reanalysed the gene tree (sensu Lu et al., 2018) using more DNA sequences from GenBank to test whether Trigonidium s. str. and Paratrigonidium should be considered separate genera or subgenera of Trigonidium s. l. However, the gene tree based on current data was not conclusive. Lastly, we describe a new species of Trigonidium s. str. from Siargao Island, Mindanao (Philippines): Trigonidium solis sp. nov.
Subject(s)
Gryllidae , Orthoptera , Animals , PhilippinesABSTRACT
Siargao Island is located on the southeastern part of the Philippines. We have very little knowledge on the Orthoptera from this island which is covered with forest over limestone, open vegetation, and mangrove, despite being designated as one of the terrestrial Key Biodiversity Areas (KBAs) in the Philippines. We conducted surveys in 2018 to search for orthopterans. In total, thirty-seven species from 34 genera were found. Seventeen species are recorded in Siargao Island for the first time, representing 45.9% of all collected species, thus, validating that orthopterans in the island are indeed overlooked. Out of the 37 species, 21 of these are endemic to the Philippines and 9 are endemic to Siargao Island, hence suggesting that species on the island can be biologically significant.. We also observed that a huge proportion of the species in Siargao Island are fully winged and capable of flight, but most species are small sized. We also provide taxonomic notes and illustrations, including descriptions of the male Segestidea punctipennis Bolívar, 1903 and female Eumecopoda reducta Hebard, 1922 for the first time. We inferred that species from Siargao Island are closely associated with Sundaland and for within Philippines, Mindanao and Luzon.
Subject(s)
Orthoptera , Animals , Asia, Southeastern , Biodiversity , Female , Islands , Male , PhilippinesABSTRACT
Owing to the cryptic behavior and morphology of many Southeast Asian Landrevinae, new species are still being discovered in unexplored parts of the region. Here, we describe a new species: Endodrelanva siargaoensis sp. nov. We also recorded and describe the calling song of the new species. Owing to the morphological similarities between species of Endodrelanva Gorochov, 2000 and Endolandrevus Saussure, 1877, we also provide a short review of the two genera and list their characters for comparison.
Subject(s)
Gryllidae , Orthoptera , Animal Distribution , Animal Structures , Animals , Body Size , PhilippinesABSTRACT
The diversity of the Agraeciini spine-headed katydids (Orthoptera: Tettigonioidea: Conocephalinae) in Southeast Asia remains poorly known, with species still awaiting discovery. Recent field collections in the Philippines resulted in the discovery of three novel species and redescription of two known species of Agraeciini, namely, (1) Anthracites furvuseques sp. nov. from Siargao in Mindanao, a species close to A. major Hebard, 1922; (2) Axylus mabinii sp. nov. from Luzon: (3) a new variant in Axylus c.f. philippinus (Hebard, 1922); (4) Salomona lumadae sp. nov. from Siargao in Mindanao; and (5) Salomona brevicollis Stål, 1877 comb. resurr. is a valid species distinct from Salomona maculifrons Stål, 1877.
