Dan A. Polhemus

Three new species of Argiolestes, with a key to the males of Argiolestes s. str. (Odonata: Megapodagrionidae)

Abstract In this article the genus Argiolestes s.str. is defined and three new species belonging to this group are described: A. foja sp. nov. (holotype: Foja Mountains, Indonesia, dep. in MBB}); A. muller sp. nov. (holotype: Baia River, Papua New Guinea, dep. in SAMA); A. roon sp. nov. (holotype: Roon Island, Indonesia, dep. in BPBM). New records for A. alfurus are given, a key to males is presented and a map of the distribution of the species is shown. Both sexes of A. muller and the male of A. roon are depicted in life. The group is distributed from New Guinea over the Moluccas to Sulawesi. As far as is known all species are confined to forest brooks.

Pseudagrion fumipennis, a remarkable new species of damselfly from New Guinea (Odonata: Zygoptera: Coenagrionidae)

The coenagrionid genus Pseudagrion Selys is distributed widely from south Asia through Melanesia, with at least 42 described species recorded from the region between India and the Solomon Islands (Tsuda 1991). In New Guinea and the Moluccas the genus is represented by 10 described species (Ris 1915; Lieftinck 1932, 1937, 1949), but additional undescribed taxa are known from the region. During recent field surveys in the vast lowland rainforests of New Guinea, two of us (DP, SJR) collected a distinctive new species in this genus (Polhemus 1995, 1998, 2000; Polhemus et al. 2004; Richards et al. 1998), described herein. The new species is tentatively identified as a member of Pseudagrion based on its wing venation and male terminalia. However, it is set apart from all other New Guinean Coenagrionidae by the rich chestnut color which decorates the apices of all four wings. Material and methods All measurements in the following descriptions are given in millimeters. CL numbers in the Material Examined section refer to collection locality numbers used by the senior author to cross reference specimens, field notes, and habitat photographs. The holotype of Pseudagrion fumipennis is deposited in the Australian Museum of Natural History, Sydney (AUSM); paratypes are deposited in the Smithsonian Institution, Washington, DC (USNM), and the Bishop Museum, Honolulu (BPBM).

A New Species of Potamocoris (Heteroptera: Potamocoridae) from Belize, and Synonymy of the Genus Coleopterocoris

A new species of Potamocoridae, Potamocoris isbiru, is described from Belize. This taxon is easily recognized by the thick fringes of gold setae on the lateral margins of the head, pronotum and basal hemelytra. This new species also exhibits both fully macropterous and coleopteriform wing morphologies, thereby encompassing the character states previously used to discriminate the genus Potamocoris Hungerford from the genus Coleopterocoris Hungerford. On the basis of this intraspecific wing polymorphism, we conclude that Coleopterocoris is merely the coleopteriform morph of Potamocoris, and synonymize it under the latter genus. Figures of key morphological characters are provided for P. isbiru, accompanied by a photograph of typical habitat in which the species occurs, and a distribution map.

Two new Peruvian species of Paravelia (Heteropera: Veliidae) from water-filled bamboo internodes, and distributional notes for other Paravelia species

Two new species of Paravelia – P. loutoni and P. reclusa – are described from water-filled bamboo internodes in the forests of eastern Peru. Color dorsal habitus photographs of both species and line drawings of key male genitalic characters are provided, accompanied by a distribution map. Line drawings of the male genitalic structures of P. myersi Hungerford, the closest putative relative to these two new species, are also provided for comparison. Although Neotropical Veliidae have been previously reported from bromeliad phytotelmata, the current results from bamboo internodes are the first records for veliid utilization of this habitat in the Western Hemisphere, and indicate that further samples from such habitats are likely to result in the discovery of other heretofore undetected veliid species. New records are also provided for 12 other previously described Paravelia species; the new records serve to clarify the geographic ranges and ecological preferences of these taxa.

Two new species of Pyrrhargiolestes, with a key to the males (Odonata: Argiolestidae)

Two new species belonging to the endemic New Guinea genus Pyrrhargiolestes are described from Papua New Guinea: P. lamington sp. nov. (holotype: Mount Lamington, Oro Province, dep. in RMNH) and P. yela sp. nov. (holotype: Rossel Island, Milne Bay Province, dep. in USNM). The presumed male of P. aulicus is described for the first time. New records and remarks are provided for P. angulatus, P. kula, P. sidonia and P. tenuispinus. A key to the males of all species of Pyrrhargiolestes, information on habitat and a map of the known distributions are given.

A new species of Rhagovelia in the armata group from Belize (Heteroptera: Veliidae)

Rhagovelia chac n. sp. is described from the mountains of interior Belize. This species is morphologically similar to Rhagovelia planipes Gould, which occurs in the adjacent basal section of the Yucatan Peninsula. Figures of the male and female dorsal habitus and male genitalic structures are provided, accompanied by a distribution map and a photo of the type locality.

Metrocoris Mayr (Insecta: Hemiptera: Gerridae) of India with descriptions of five new species

The Metrocoris fauna of India is reviewed and five new species are described from India: M. murtiensis Basu, Polhemus and Subramanian sp. nov. belonging to the nigrofasciatus species group, M. dinendrai Basu, Polhemus and Subramanian sp. nov. and M. darjeelingensis Basu, Polhemus and Subramanian sp. nov. of the compar species group, M. deceptor Basu, Polhemus and Subramanian sp. nov. (previously treated as M. quynhi Tran & Zettel in Basu et al., 2015) of the anderseni species group, and M. lavitra Basu, Polhemus, Subramanian and Saha sp. nov., which does not fit well into any currently established species group. The new species proposed are compared to all other known species, and a key to all the species of Indian Metrocoris is provided, accompanied by a table for comparison of key morphological characters, and a map and table of distributional details.

Idiocnemis schorri sp. nov., a new damselfly species from southern Papua New Guinea (Odonata: Platycnemididae)

Idiocnemis schorri sp. nov. is described from the Hindenburg and Muller Ranges and the Kikori River Basin of southern Papua New Guinea. The new species differs from all congeners by, among other characters, a unique colour pattern on the thorax. Characters of males and females are illustrated and compared to those of similar species from the Idiocnemis bidentata group. The new species is found along small, shallow rainforest streams and is currently known only from the Trans-Fly Foreland and Papuan Gulf Foreland areas of endemism.

First record of the genus Baptista Distant, 1903 (Heteroptera: Veliidae) from China, with descriptions of two new species

The genus Baptista Distant, 1903, is recorded for the first time from China. Four species are treated in this paper, with B. digitata Andersen, 1989 and B. hoedli Zettel, 2004 newly recorded from China and two additional species, B. curvicornis sp. n. and B. obtusa sp. n., described as new to science. Photographs of the male and female dorsal habitus, male fore legs, male abdominal sternites, and male genitalic structures are provided, accompanied by line drawings of the male fore tibial details, male paramere, habitat photographs, and a distribution map for all Baptista species. A key to all four species occurring in China is also provided to assist in future identification.

Ocyochterus irmae, a beautiful new species of Ochteridae (Heteroptera) from the Northern Andes

The new species Ocyochterus irmae is described from the Andes Mountains of Colombia and adjacent Ecuador. This species is only the second known in the genus, and the first in which male specimens have been available for dissection of the genitalic structures. A new record is also provided for the previously described O. victor (Bolivar), constituting only the fourth known specimen of this taxon since the original description in 1879, and the first new collection in over 90 years. Color photographs of the dorsal habitus and anterior head are presented for both O. irmae and O. victor, as well as photographic figures of the male parameres, aedeagus, proctiger and pygophore for O. irmae, representing the first illustrations of the male genitalic structures in this genus. A distribution map for O. irmae and O. victor is also provided.