Chimarra nakkiensis, Pandher, Manpreet Singh & Saini, Malkiat Singh, 2012

Pandher, Manpreet Singh & Saini, Malkiat Singh, 2012, Seven new species of the genus Chimarra Stephens (Trichoptera: Philopotamidae) from India, Zootaxa 3478, pp. 313-329 : 324

Chimarra nakkiensis sp. nov.

( Figs. 17–19 , 23–25 , 52–53 )

Diagnosis: This species resembles Chimarra toga Malicky & Chantaramongkol 1993b and Chimarra ramakien Malicky & Chantaramongkol 1993b from Thailand in the presence of a ventral process on sternite VIII, but Chimarra nakkiensis sp. nov. is distinct because the shapes of sclerotized lateral lobes and inferior appendages are different in lateral view from those of C. toga and C. ramakien . The phallic apparatus of C. toga has 2 apical endothecal spines and C. ramakien has a single endothecal spine visible in lateral view, while C. nakkiensis has numerous small endothecal spines and about 4 spines pointing laterad distally beyond the phallotremal sclerite complex.

Description: Length of each male forewing 7.50 mm (n=1), female forewing 9.75 mm (n=2). Color in alcohol uniformly fuscous and body covered with inconspicuous, sparse fuscous pubescence except pronotum with mixture of golden and fuscous setae. Each antenna 4.55 mm long (n=3); maxillary palps 1.3 mm long (n=3), segment 3 distinctly longer than 2, 3 slightly longer than 5; labial palps 0.81 mm long (n=3). Forewing venation: Stem of Rs curved, distinctly sclerotized and thickened at inflection; length of discoidal cell about 2 times width; crossvein m proximal to crossveins s and r-m; vein 2A not intersecting 3A ( Figs. 52, 53 ).

Male genitalia ( Figs. 17–19 , 23–25 ): Sternum VIII with distinct posteroventral projection. Segment IX in lateral view subrectangular, relatively long dorsolaterally, its anteroventromesal margin in lateral view not or scarcely produced into downward-projecting tooth; lower posterolateral margins slightly produced; posteroventral process evident. Inferior appendages in lateral view rectangular; in ventral view with incurved spine near middle of mesal margin. Tergum X with sclerotized and paired lateral and mesal lobes; each lateral lobe long, in lateral view slender, undulating, rounded apically, bearing multiple sensilla; each mesal lobe short, digitate, distinctly sclerotized, directed dorsad, in lateral view narrow, recurved, apex with single, acuminate spine-like tip. Preanal appendages setose, short, rounded, broadest basally. Phallic apparatus with sclerotized portion long, nearly cylindrical in dorsal and ventral views ( Figs. 24–25 ); phallobase rounded; posterior part of phallotheca cylindrical; endotheca long with many small asymmetrical endothecal spines in the retracted phallotheca; about 4 spines pointing laterad in group immediately posterior of phallotremal sclerite complex in ventral view; phallotremal sclerite complex large, flask-shaped in dorsal and ventral views, with 2 plates closely pressed together; a single, minute spine pointing caudad apically in retracted phallotheca in ventral view.

Material examined: Holotype 3, INDIA: Rajasthan: Mount Abu, 24°36’N, 72°42’E, 1,200 m, 19-vii-2008, Pandher, deposited in PUPM. Paratypes: Same data as holotype, 2Ƥ, deposited in PUPM.

Distribution: India (Rajasthan).

Etymology: This species is named after the collection locality, Nakki Lake on Mount Abu.

Figures

FIGURES 10 – 19. Chimarra spp. nov., male genitalia. 10 – 13, C. lakhwinderae sp. nov.: 10, left lateral view; 11, dorsal view; 12, dorsolateral view of right inferior appendage; 13, ventral view of right inferior appendage. 14 – 16, C. sikkimensis sp. nov.: 14, left lateral view; 15, dorsal view; 16, ventral view of right inferior appendage. 17 – 19, C. nakkiensis sp. nov. 17, left lateral view; 18, ventral view of right inferior appendage; 19, dorsal view.

FIGURES 23 – 35. Chimarra spp. nov., phallic apparatus. 23 – 25, C. nakkiensis sp. nov.: 23, left lateral view; 24, ventral view; 25; dorsal view. 26 – 28, C. rongliensis sp. nov.: 26, left lateral view; 27, ventral view; 28, dorsal view. 29 – 31, C. lakhwinderae sp. nov.: 29, left lateral view; 30, ventral view; 31, dorsal view. 32 – 34, C. mawsmaiensis sp. nov.: 32, dorsal view; 33, left lateral view; 34, ventral view. 35, C. soloi sp. nov., left lateral view.

FIGURES 52 – 55. Venation of Chimarra spp. nov. 52 – 53, C. nakkiensis sp. nov.: 52, forewing; 53, hind wing. 54 – 55, C. rifati sp. nov.: 54, forewing; 55, hind wing.