Five new species of Rhigonema Cobb, 1898 (Rhigonematida: Rhigonematidae) from the Philippines and Vietnam with observations on the morphology of the Indo-Malayan forms and nematophagy by R. voratum sp. n.

Nematology ◽  
1999 ◽  
Vol 1 (4) ◽  
pp. 337-361 ◽  
Author(s):  
David Hunt

AbstractFive new species of Rhigonema are described and illustrated from the gut of diplopods collected from the Philippines and Vietnam. R. flabellifer sp. n., R. golovatchi sp. n., R. rigonanae sp. n., R. spiridonovi sp. n. and R. voratum sp. n. are differentiated from one another and the remaining species in the genus by a combination of characters including form of the cephalic extremity, development and extent of the pilose region, female genital tract type, male and female tail shape, spicule form and number and disposition of the copulatory papillae. Two species, both from polydesmid diplopods, bear an unusual pedunculate, flap-like projection on each sector of the triangular oral aperture and have only thirteen copulatory papillae. Such projections have only previously been described from R. lanceacauda, a species from the West Indies that also shares a reduced and similarly arranged complement of thirteen male papillae. The morphology, bionomics and distribution of Rhigonema are discussed and evidence presented for the first time that nematophagy is practised by at least one species in the genus. Rhigonema leonilae (Sanchez-Velazquez, 1979) comb. n. is proposed for Ruizia leonilae Sanchez-Velazquez, 1979. Cinq nouvelles especes de Rhigonema Cobb, 1898 (Rhigonematida: Rhigonematidae) des Philippines et du Vietnam et observations sur la morphologie des formes indo-malaises et la nematophagie chez R. voratum sp. n. - Cinq nouvelles especes de Rhigonema provenant des intestins de diplopodes collectes aux Philippines et au Vietnam sont decrites et illustrees. R. flabellifer sp. n., R. golovatchi sp. n., R. rigonanae sp. n., R. spiridonovi sp. n. et R. voratum sp. n. sont differencies les uns des autres et des autres especes du genre par une combinaison de caracteres incluant la forme de l'extremite cephalique, le developpement et l'etendue de la pilosite, le type de tractus genital femelle, la forme de la queue du male et de la femelle, la forme des spicules et le nombre et la repartition des papilles copulatrices. Deux especes, provenant toutes deux de Diplopodes Polydesmides, portent une projection inhabituelle, pedonculee, en forme de languette, sur chacun des secteurs de l'ouverture buccale triangulaire et comptent seulement treize papilles copulatrices. De telles projections n'ont ete precedemment decrites que chez R.lanceacauda, une espece originaire des Antilles, qui exhibe egalement un cortege reduit de treize papilles chez le male avec la meme repartition. La morphologie, le comportement et la repartition des Rhigonema sont discutes et la preuve est apportee pour la premiere fois que la nematophagie est pratiquee par au moins une espece de ce genre. Rhigonema leonilae (Sanchez-Velazquez, 1979) comb. n. est propose pour Ruizia leonilae Sanchez-Velazquez, 1979.

Nematology ◽  
2002 ◽  
Vol 4 (7) ◽  
pp. 803-827 ◽  
Author(s):  
David Hunt

AbstractSix new species of Rhigonema are described from the gut of various African diplopods. Rhigonema fecundum sp. n., from South Africa, is characterised by medium to fairly long body length, finely pilose anterior region, posterior margin of cephalic collar smoothly fused to body contour, Type 2 genital tract with a long ovejector, presence of a long, closely adpressed, vulval flap, tail shape in both sexes, broad spicules of medium length and complement of 23 copulatory papillae of which three pairs are subdorsal or sublateral in position. Rhigonema oxydesmi sp. n., from Oxydesmus platycercus concolor, Zaire, is characterised by medium body length, slightly projecting cephalic collar, finely pilose anterior region, Type 2 female genital tract with a long ovejector, presence of a short, adpressed, vulval flap, tail shape in both sexes, medium length spicules with a hamate capitulum and complement of 23 copulatory papillae, three pairs of which are subdorsal or sublateral in position. Rhigonema peziphorum sp. n., from Sphaerotherium selindum, Zimbabwe, is characterised by medium body length, prominently projecting cephalic collar, finely pilose anterior region, Type 1 female genital tract with a medium length ovejector, rather large eggs, absence of a prominent vulval flap, presence of a spermatophore, tail shape in both sexes, unusually short spicules with a weakly hamate capitulum and complement of 23 copulatory papillae. It is the only known Rhigonema species to form a spermatophore. Rhigonema rostrellum sp. n., from Ivory Coast, is characterised by medium body length, finely pilose anterior region, Type 2 genital tract with a very long ovejector, presence of a closely adpressed vulval flap, tail shape in both sexes, broad spicules of medium length and complement of 23 copulatory papillae of which three pairs are subdorsal or sublateral in position. Rhigonema spicatum sp. n., from Congoromus flabellatus, Zaire, is characterised by medium body length, slightly projecting cephalic collar, densely pilose anterior region, Type 2 female genital tract with a long ovejector, presence of an adpressed vulval flap, tail shape in both sexes, relatively short spicules with a hamate capitulum and complement of 23 copulatory papillae. Rhigonema xiphiurus sp. n., from Oxydesmus sicarius, Zaire, is characterised by medium body length, projecting cephalic collar, coarsely pilose anterior region with bristly microtrichs, microtrichs extending down body to beyond vulval level in female and a similar relative position in the male, Type 2 female genital tract with a long ovejector, elongate female tail, convex conoid male tail with an exceptionally well developed subulate projection, very short spicules and disposition of the 23 copulatory papillae, three pairs of which are dorsal or sublateral in position. A synopsis of the other eight nominal species of African Rhigonema is appended.


TREUBIA ◽  
2020 ◽  
Vol 47 (2) ◽  
pp. 133-154
Author(s):  
Fuki Saito- Morooka ◽  
Hari Nugroho ◽  
Alan Handru ◽  
Jun- Ichi Kojima

Wasps of the genus Eustenogaster van der Vecht, 1969, with 17 species currently recognized, are distributed from the Indian subcontinent in the west to the Philippines, Sulawesi Island and Java Island in the east. Two new species of hover wasp genus Eustenogaster (E. multifolia sp. nov., E. sumatraensis sp. nov.) are described from specimens collected in Sumatra Island. The female of E. vietnamensis occurring in Vietnam are described for the first time. The lectotypes of Paravespa eva Bell, 1936 and Ischnogaster ornatifrons Cameron, 1902 are designated. The new taxonomic status is proposed for Stenogaster eximioides Dover and Rao, 1922 as a good (=valid) species of Eustenogaster. The synonymy of Ischnogaster ornatifrons Cameron, 1902 with Eustenogaster micans (de Saussure, 1852) has been confirmed. A revised key to species and a taxonomic and distributional checklist of all the species of Eustenogaster are provided.


ZooKeys ◽  
2021 ◽  
Vol 1048 ◽  
pp. 145-175
Author(s):  
Vladimir I. Lantsov ◽  
Valentin E. Pilipenko

The caucasica species group in the subgenus Lunatipula is redefined and now consists of five species native to the Caucasus. Tipula (L.) eleniyasp. nov. is described as new to science, and variations in the male terminalia in two populations are noted. Two subspecies (quadridentataquadridentata and quadridentatapaupera) are elevated to species rank. Detailed photo’s complement the descriptions of all five species (caucasica, eleniya, paupera, quadridentata, talyshensis), and data on ecology and distribution patterns are included as well as identification keys to males and females. Tipula caucasica is recorded from the West Caucasus and Tipula quadridentata is recorded from Dagestan (Russia) for the first time. Parallel evolution is traced in the male terminalia of the new species and in several non caucasica species group of Palaearctic Lunatipula.


Author(s):  
Mauro Morassi ◽  
Andrea Nappo ◽  
Antonio Bonfitto

Twelve new species are assigned to the genus Otitoma Jousseaume, 1898 in the family Pseudomelatomidae Morrison, 1966 and herein described: O. hadra sp. nov., O. neocaledonica sp. nov., O. rubiginostoma sp. nov and O. tropispira sp. nov. from New Caledonia; O. boucheti sp. nov., O. nereidum sp. nov. and O. sororcula sp. nov. from the Fiji Islands; O. xantholineata sp. nov. from the Solomon to the Fiji Islands; O. crassivaricosa sp. nov. from Fiji to Hiva Oa Island (Marquesas Archipelago); O. philpoppei sp. nov. from the Philippines but also reported from the Fiji Islands; O. elegans sp. nov. from the Fiji Islands and O. philippinensis sp. nov. from the Philippines. New data on O. carnicolor (Hervier, 1896) are provided. Otitoma mitra (Kilburn, 1986), from Southern Mozambique, is here considered a synonym of O. cyclophora (Deshayes, 1863). Drillia batjanensis Schepman, 1913, previously assigned to the genus Maoritomella Powell, 1942 in the family Borsoniidae Bellardi, 1875, is here assigned to the genus Otitoma. Photographs of the holotype of Drillia batjanensis are provided for the first time. In addition, color photographs of the type specimens of the following species are provided: Drillia kwandangensis Schepman, 1913, D. timorensis Schepman, 1913 and Mitrellatoma mitra Kilburn, 1986.


Zootaxa ◽  
2019 ◽  
Vol 4658 (3) ◽  
pp. 571-584
Author(s):  
PAWEŁ JAŁOSZYŃSKI ◽  
ZHI-FEI CHENG ◽  
NASTAZJA BRAJCZEWSKA ◽  
ZI-WEI YIN

Until now, two species of Clidicus were known to occur in the Philippines, both inhabiting Mindanao. The scarcity of published records (merely six known Philippine specimens of this genus) suggested that Clidicus was rare in this country. We here falsify this view, by describing five new species and providing new records of the previously known species, based on a material of over 80 specimens collected on Mindanao and Luzon. Clidicus forceps Cheng, Yin & Jałoszyński, sp. n., C. interfector Jałoszyński, Cheng & Yin sp. n., C. kalis Jałoszyński, Cheng & Yin sp. n., C. occisor Jałoszyński sp. n., and C. shavrini Jałoszyński sp. n., are described. Clidicus crocodylus Jałoszyński, previously known to occur on Mindanao, is for the first time recorded in Luzon.


Zootaxa ◽  
2019 ◽  
Vol 4608 (2) ◽  
pp. 291
Author(s):  
ELORDE JR. S. CRISPOLON ◽  
SHERYL A. YAP ◽  
ADELINE SOULIER-PERKINS

The genus Poeciloterpa Stål endemic to the Philippines with 9 known species is reviewed. Four new species are described and illustrated: P. altissima Crispolon et Soulier-Perkins sp. nov., P. conica Crispolon et Soulier-Perkins sp. nov., P. gapudi Crispolon et Yap sp. nov. and P. mangkas Crispolon et Yap sp. nov. Illustrations and descriptions for the male genitalia are given for the first time for all the species except for P. nigrolimbata Stål known only by two female specimens. A key to species is provided. The type of habitats where the species are found is discussed and new host-plants listed. 


Zootaxa ◽  
2018 ◽  
Vol 4377 (4) ◽  
pp. 490 ◽  
Author(s):  
MEDHAT I. ABUL-SOOD ◽  
NEVEEN S. GADALLAH ◽  
MOHAMMED T. HOSSNI ◽  
GÉRARD DELVARE

The Cratocentrinae (Hymenoptera: Chalcididae) of the West Palaearctic region are reviewed. A reappraisal of the morphological characters used for their recognition and phylogeny is provided as is a key to separate the genera and species of the region. Their distribution in the West Palaearctic is updated and the subfamily is reported for the first time in Europe. Cratocentrus inermus Delvare sp. nov. and Philocentrus papillus Abul-Sood & Gadallah sp. nov. are described. A neotype is designated for Philocentrus argenteopilosus (Cameron), which is revalidated and transferred to Philocentrus comb. nov. & stat rev. 


1977 ◽  
Vol 55 (8) ◽  
pp. 1275-1283 ◽  
Author(s):  
B. Mondet ◽  
G. O. Poinar Jr. ◽  
J. Bernadou

From material collected by R. Le Berre in 1972 and by J. J. Petersen and B. Mondet in 1975, two new species of Mermithidae are described from blackfly larvae, including Simulium damnosum s.l., for the first time in West Africa. These species, Gastromermis philipponi n.sp. and Gastromermis leberrei n.sp. possess a rudimentary excretory gland and the preparasitic larvae of the former contain a characteristic caudal appendage which is lost during penetration into the simuliid larvae. Therefore, these two species are the only ones of Gastromermis known to have six longitudinal cords.


Zootaxa ◽  
2020 ◽  
Vol 4816 (3) ◽  
pp. 333-349 ◽  
Author(s):  
SHANE T. AHYONG ◽  
PETER K.L. NG

Three new Indo-West Pacific species of pinnotherid crabs are described, one each of Arcotheres, Buergeres and Nepinnotheres. Arcotheres pollus, described from Paway Island, Mergui Archipelago, is most similar to A. boninensis (Stimpson, 1858), A. pernicola (Bürger, 1895) and A. purpureus (Alcock, 1900), sharing a transversely ovate carapace and long, slender, almost styliform dactyli of P4 and 5 that are about twice the length of those of P2 and 3. Buergeres choprai, described from Papua New Guinea, is most similar to B. deccanesis (Chopra, 1931) from eastern India but differentiated by segment proportions and setation of the walking legs. Buergeres tenuipes (Bürger, 1895) is synonymised with B. ortmanni (Bürger, 1895), which is also reported for the first time from Indonesia. A male of an undetermined species of Buergeres from the Philippines, possibly B. ortmanni, is figured and described, documenting the gonopod morphology in Buergeres for the first time. A key to the species of Buergeres based on females is provided. Nepinnotheres fulvia sp. nov. is also described from Papua New Guinea, and resembles N. cardii (Bürger, 1895) from the Philippines and Malaysia but can be distinguished by features of the chelipeds and maxilliped 3. 


Zootaxa ◽  
2012 ◽  
Vol 3195 (1) ◽  
pp. 1 ◽  
Author(s):  
JULIA D. SIGWART ◽  
BORIS I. SIRENKO

Natural deposits of sunken wood provide an important habitat for deep-sea invertebrates. Deep-sea chitons in the primitiveorder Lepidopleurida are typically collected rarely and as single specimens. However, these animals have been recoveredin large densities associated with sunken wood in the tropical West Pacific, in groups of up to 50 individuals. Four deep-sea expeditions in the West Pacific, to the Philippines, Solomon Islands, and Vanuatu, recovered a large number of poly-placophorans. We have examined the morphology as well as the range and distribution of these species, based on the larg-est collection ever examined (more than 1300 individuals). These species show potentially adapted characters associatedwith exploitation of sunken wood as habitat, such as protruding caps on sensory shell pores (aesthetes) and large interseg-mental bristles with potential sensory function. In this study we investigated the twenty-two species recovered, includingseven newly described here (Leptochiton consimilis n. sp., L. angustidens n. sp., L. dykei n. sp., L. samadiae n. sp., L.longisetosus n. sp., L. clarki n. sp., L. schwabei n. sp.), and provide the first identification key to the 34 lepidopleuran chitons known from sunken wood worldwide.


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