Forcipomyia (Lepidohelea), 1917

Pal, Gouri Sankar & Hazra, Niladri, 2024, Three new species of Forcipomyia (Lepidohelea) (Diptera: Ceratopogonidae) from West Bengal, India, Zootaxa 5419 (3), pp. 348-360 : 358

Key to the Indian species of Forcipomyia (Lepidohelea) (Modified after Pal et al. 2024b)

Female

1. Hairs on apical and anal margin of wing serrated.................................... F. (L.) calotricha Kieffer, 1911

– Hairs on wing margin simple............................................................................ 2

2(1). Sub-basal and sub-apical brownish bands on all legs ( Congo, Seychelles)............. F. (L.) chrysolopha ( Kieffer, 1911)

– Banding pattern of legs variable......................................................................... 3

3(2). Spermatheca one...................................................................................... 4

– Spermathecae two.................................................................................... 7

4(3). Capitate sensilla of maxillary palp protruded............................................................... 5

– Capitate sensilla of maxillary palp confined within sensory pit................................................. 6

5(4) Spermatheca large, with long neck........................... F. (L.) biharinathensis Pal, Chatterjee and Hazra, 2024b

– Spermatheca small, with a short neck................................... F. (L.) ansula Pal, Ghosh and Hazra, 2024a

6(4). Maxillary palp with large, irregular sensory pit.............................................. F. (L.) sulcoa sp. n.

– Maxillary palp with small, rounded sensory pit....................... F. (L.) buccina Pal, Chatterjee and Hazra, 2024b

7(3). Spermathecae large with no neck...................................................... F. (L.) inflatistyla sp. n.

– Spermathecae small with neck........................................................... F. (L.) ranula sp. n.

Male

1. Tip of gonostylus shoe shaped................................................ F. (L.) chrysolopha ( Kieffer, 1911)

– Tip of gonostylus either blunt or pointed.................................................................. 2

2 (1). Aedeagus flattened, roughly square shaped................................................. F. (L.) sulcoa sp. n.

– Aedeagus elongated................................................................................... 3

3(2). Gonostylus nearly straight with pointed apex; caudomedian excavation “U” shaped.............. F. (L.) inflatistyla sp. n.

– Gonostylus slightly curve with blunt rounded tip; caudomedian excavation irregular................................ 4

4(3). Lateral process of parameres “prong horn” like....................... F. (L.) buccina Pal, Chatterjee and Hazra, 2024b

– Lateral process of parameres simple...................................................................... 5

5(4). Submedian process of parameres apically hooked, inwardly directed with a blunt tip................................................................................................. F. (L.) ansula Pal, Ghosh and Hazra, 2024a

– Submedian process of parameres swollen basally, outwardly directed with a pointed tip.............. F. (L.) ranula sp. n.