Hydropsyche golitarensis sp. nov.

(Figs. 47–51)

Description of adult male: Color in alcohol fuscous, body covered with short, sparse, brown pubescence, dorsum of head dark brown. Length from tip of head to apices of folded forewings about 9.25 mm; maxillary palps each about 2 mm, 2nd segment almost 2 times as long as 3rd segment, 5th segment equal to 1st–4th segments together; labial palps each about 0.75 mm long. Length of each forewing about 7 mm (n = 3); each hind wing 5.25 mm long.

Male genitalia (Figs. 47–51): Abdominal segment IX longitudinally short, anterolaterally convex in lateral view; dorsomedian keel triangular, granulose, pointed apically in dorsal view; posterolateral lobe on each side pointed, triangular, setose, setae in continuity with posterolateral slope of keel. Deep U-shaped depression visible on dorsal margin between segment IX and tergum X. Body of tergum X longitudinally short, quadrangular in lateral and dorsal views; lateral setose lobes (preanal appendages) indicated by two small lobes; apicoventral setose lobes small, pointed, directed posteromesad; apicodorsal lobes fused, pointed, placed medially in dorsal view; dorsal interlobular gap small between apicoventral lobes. Inferior appendages each long; basal segment concave dorsally near base, 2 times as long as apical segment; curved mesad in ventral view; apical segment broad at base, slightly tapered preapically in ventral and dorsal views. Phallic apparatus broad and strongly curved caudad at base, narrow, slender towards complex apex; endotheca slender with broad sclerotized apical lobes curved mesad in ventral view.

Holotype: Male, INDIA: Sikkim: Golitar, 2200 m, 13-ix-2009, Pandher & Parey, NPC .

Paratypes: 2 males, collection data same as for holotype (NPC).

Diagnosis: This species belongs to the Hydropsyche pluvialis Group. It is very similar to Hydropsyche pallipenne Banks 1938 (Malaysia) . However, tergum X is pointed medially in dorsal view and its median keel is triangular, indicating that H. golitarensis sp. nov. is a distinct species.

Distribution: India: Sikkim.

Etymology: This species is named after the type locality Golitar.