Chimarra rongliensis, 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 : 314-316

Chimarra rongliensis sp. nov.

( Figs.1–3 , 26–28 , 50–51 )

Diagnosis: The genitalia of this new species closely resemble those of Chimarra atara Malicky & Chantaramongkol 1993b from Thailand and C. supanna Malicky 1993 from Sumatra. It is closer to C. atara in the shape of segment IX in lateral view. However, the anteroventral margin of segment IX is produced in C. atara whereas it is not produced in C. rongliensis in lateral view. The mesal lobes of tergum X are not curved backward apically in C. atara as they are in C. rongliensis .

Description: Length of each male forewing 7.00 mm (n=1) and female forewing 9.25 mm (n=2). Body in alcohol entirely fuscous and covered with inconspicuous, sparse and fuscous pubescence. Length of each antenna 5.52 mm (n=2); maxillary palps each 1.78 mm long (n=2), segment 3 slightly longer than 2, 3 subequal to 5 and each labial palp 0.97 mm long (n=2). Forewing venation: stem of Rs curved, with enlarged node at inflection; fork at base of discoidal cell distinctly thickened, length of discoidal cell about 2.5 times width; crossvein m proximal to crossveins s and r-m; vein 2A intersecting 3A ( Figs. 50, 51 ).

Male genitalia ( Figs. 1–3 , 26–28 ): Tergum IX short dorsolaterally, obsolete and membranous dorsomesally, anteroventral margin in lateral view not produced, posteroventral margin distinctly produced; ventral process rudimentary. Inferior appendages each slightly longer than tergum X; in lateral view placed obliquely, uniformly wide, apically blunt; in ventral view proximal ¾ straight, apical ¼ curved mesad. Tergum X with sclerotized lateral and mesal lobes, each lateral lobe in lateral view subovate, broad, apically slender and curved backward, bearing multiple sensilla; each mesal lobe elongate, digitate and curved apically. Each preanal appendage setose, broad and semicircular. Phallic apparatus with sclerotized portion long, nearly cylindrical in lateral view ( Fig. 26 ), with tubular phallobase, without any basodorsal expansion, ventral apex weakly sclerotized; endotheca without small endothecal spines inside retracted phallotheca; 2 long spines and single, very thick spine curved and pointed at apex, visible apically in phallotheca in ventral view ( Fig. 27 ); phallotremal sclerite complex not visible in any view; phallotheca bifid apically.

Material examined: Holotype 3, INDIA: Sikkim: Rongli, 27°13’N, 88°42’E, alt. 900 m, 1-v-2009, Pandher and Parey, deposited in PUPM. Paratypes: Same data as holotype, 2Ƥ, deposited in PUPM.

Distribution: India (Sikkim).

Etymology: This species is named after its type locality, Rongli.

Figures

FIGURES 1 – 9. Chimarra spp. nov., male genitalia. 1 – 3, C. rongliensis sp. nov.: 1, left lateral view; 2, dorsal view; 3, ventral view of right inferior appendage. 4 – 6, C. soloi sp. nov.: 4, left lateral view; 5, dorsal view; 6, ventral view of right inferior appendage. 7 – 9, C. mawsmaiensis sp. nov.: 7, left lateral view; 8, dorsal view; 9, ventral view of right inferior appendage.

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 42 – 51. Venation of Chimarra spp. nov. 42 – 43, C. soloi sp. nov.: 42, forewing; 43, hind wing. 44 – 45, C. mawsmaiensis sp. nov.: 44, forewing; 45, hind wing. 46 – 47. C. lakhwinderae sp. nov.: 46, forewing; 47, hind wing. 48 – 49, C. sikkimensis sp. nov.: 48, forewing; 49, hind wing. 50 – 51, C. rongliensis sp. nov.: 50, forewing; 51, hind wing.