Kisaura dirangensis, Pandher & Kaur & Parey, 2018

Pandher, Manpreet Singh, Kaur, Simarjit & Parey, Sajad H., 2018, Three new species of the genus Kisaura Ross (1956) (Trichoptera: Philopotamidae) from Arunachal Pradesh, India, Zootaxa 4403 (3), pp. 586-593 : 587-589

Kisaura dirangensis sp. n.

( Figs. 1–4 )

Material examined. Holotype: Adult male ♂ (in ethanol), India: Arunachal Pradesh; Dirang , 27°20'0"N, 92°16'0"E, 1700 m, 20-iv-2009, (Pandher & Parey) deposited in NPC. Paratype: 2 ♂, same collection data as holotype .

Diagnosis. This species is similar to K. surasa Malicky & Chantaramongkol 1993a ( Thailand) and K. sura Malicky & Chantaramongkol 1993a ( Thailand, Vietnam) in the general plan of male genitalia. However, the paired lateral spiniform processes are much longer in K. sura and K. surasa (reaching the apices of the basal segments of the inferior appendages), the preanal appendages are longer and more slender, and the basal segments of the inferior appendages are subrectangular. The shorter lateral spiniform processes of tergum X (reaching only the middle of the basal segments of the inferior appendages), the broad preanal appendages, and the oval basal segments of the inferior appendages make K. dirangensis sp. n. a distinct species.

Description. Adult male: color of body in alcohol fuscous, wings hyaline yellow, antennae and maxillary palpi yellow. Length from tip of head to apex of folded forewings about 9 mm; maxillary palps each 1.75 mm long, segment III longer than II, segment V almost sub-equal to segments I–IV together; labial palps each 0.75 mm long. Length of each forewing 7.25 mm, fork I absent, discoidal cell more than 3 times as long as its width; hind wings each 5.75 mm long; fork I absent.

Male genitalia ( Figs. 1–4 ). Sternite VIII without ventral process; tergite VIII with rounded posterior margin in dorsal view ( Fig. 2 ). Segment IX in lateral view elongated, quadrate, each side with blunt anteromedian and posteromedian prominences, sharply angled anterodorsally excised posteroventrally; posterolaterally excised below prominence and sinuous above it. Inferior appendages, each two-segmented: basal segment about as long as terminal one, basally narrow, oval, stouter at midlength than terminal segment in lateral view, with two apical lobes visible in both lateral and dorsal views, smaller ventromesal lobe with tuft of long setae; terminal segment directed posterodorsad, basally wide and tapered towards blunt apex in lateral view, with curved row of dark brush-like spines on mesal surface. Tergum X membranous, extending to apex of basal segments of inferior appendages, with spiniform process arising at base on each sideand bearing articulated spinelet at apex, initially directed cephalad then recurved apicoventrad and reaching almost to middle of basal segment of inferior appendages in lateral view. Preanal appendages about as long as segment IX, leaf- like, apically rounded in lateral view and finger-like in dorsal view. Phallus membranous, completely surrounded by tergum X in retracted form, with 2 median spines visible through tergum X in lateral view.

Distribution. India: Arunachal Pradesh.

Etymology. This species is named for the type locality, Dirang.

Figures

FIGURES1–4. Kisauraspp., male genitalia.1–4, K.dirangensis sp.n.: 1, left lateral; 2, tergum VIII, dOrsal;3, dOrsal; 4, right preanal appendage, dOrsal.IX = abdOminal segment IX; VIII = abdOminal segment VIII; X = tergum X.