Corresponding author: C Bijoy (
Academic editor: Lyubomir Penev
The genus
Superfamily
Among the 13 genera of
In continuation with our pioneer taxonomic studies on the superfamily
The specimens under study were collected using malaise trap set among the grassy patches of Port Blair, Andaman and Nicobar Islands, India. The specimens were card mounted on point-card tips. Description and imaging works were carried out employing Leica M205A stereomicroscope, with 1 × objective and Leica DFC-500 digital camera. Morphological terminology follows
Both the Holotype and the Paratypes are deposited in the National Zoological Collection at Zoological Survey of India, Calicut.
NHM – Natural History Museum, London.
Figs
Body length 1.68 mm. Body colouration and the morphological features of head, mesosoma and metasoma are the same as holotype, except the measurements of antennal segments, proportion of radius and pterostigma and length of metasoma.
Scape more than 4 × as long as wide and A3 more than 3 × as long as wide. Pedicel slender to succeeding antennal segments. Length/width measurements of antennal segments: scape (321/73), pedicel (103/51), A3 (170/51), A4 (97/65), A5 (86/79), A6 (83/90), A7 (90/87), A8 (79/84), A9 (80/85), A10 (87/78), A11 (124/68).
DFIm 52% of head width and fore wing infuscation much darker compared to paler infuscation in male fore wing. T3 occupying 57% of metasomal length.
Head transverse, wider than mesosoma. Male antenna subequal to body length with A3 highly slender, 4.8 × as long as wide and subequal to scape. Flagellar segments in male quasi cylindrical with very slight serrations basally. Female antenna with scape more than 4 × as long as wide and A3 more than 3 × as long as wide. Ocellar triangle isosceles, narrow based, short and raised in both sexes. Facial sulcus extending to intertorular carina in both sexes. Preoccipital furrow distinct. Supraclypeal furrow absent. DFIm 0.57% of head width in male and 0.52% of head width in female. Eyes densely pubescent. Dorsal margin of propodeal foramen ‘U’ shaped in dorsal view; median propodeal projection absent. Sternaulus absent. Metasoma dorsally elevated from the propodeal axis. Forewing infuscus, darker in female and paler in male.
The species is named '
INDIA, Andaman Nicobar island, Port Blair.
Unknown.
The proposed new species is placed under
In
In addition, the differences in the following characters also ensure that
Forewing infuscation extending further to the distal margins beyond pterostigma and radius in Facial groove distinct in both sexes in Pterostigma is 2.4 × longer than wide in DFIm value is 52% in female in Scape and A3 of male subequal in length in In
The authors are grateful to the Director of the Zoological Survey of India, Kolkata and the Officer-in-Charge, ZSI, Western Ghat Regional Centre, Calicut, Kerala, for providing facilities and encouragement. Thanks are also due to Istvan Miko for his valuable help in interpreting the generic limits of
Bijoy C: Identification, species concept and imaging
Rajmohana K: Identification and species concept
Ramesh Kumar: Specimen collection and manuscript preparation
Male habitus, lateral view.
Male antenna, lateral view.
Male head, dorsal view.
Male head, anterior view.
Male head and mesosoma, dorsal view.
Male mesosoma, lateral view.
Male clypeus, anterior view.
Male forewing.
Male propodeum.
Male, metasoma dorsal view.
Female habitus.
Female antenna.
Female forewing.
Female, metasoma dorsal view.
Male genitalia ventral view.
Characters for distinguishing
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Usually with narrow base | Usually with broad base |
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Usually globular | Usually transverse |
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Complete and with a median projection | Complete or incomplete but without a median projection |
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Smoothly curved towards anterior angles of mesoscutum | Sharply angulate towards anterior angles of mesoscutum |
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Anteriorly narrowed | Quadrate |
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Cylindrical | Serrate, triangular, ramose or quasi cylindrical | Quasi cylindrical as in |
Quasi cylindrical as in |
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Flat | Convex or raised |
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Independent | Fused |
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