Chimarra mawsmaiensis, 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 : 318-319

Chimarra mawsmaiensis sp. nov.

( Figs. 7–9 , 32–34 , 44–45 )

Diagnosis: The male genitalia of this species is close to those of Chimarra suadulla Malicky & Chantramongkol 1993b , C. devva Malicky & Chantramongkol 1993b and C. ravanna Malicky & Chantramongkol 1993b from Thailand in general appearance of genitalia, especially to C. devva and C. suadulla in dorsal view. However, in C. mawsmaiensis sp. nov. the mesal lobes of tergum X are smaller than the sclerotized lateral lobes of tergum X in dorsal view (which are longer than lateral lobes of tergum X in dorsal view in C. suadulla ). Moreover, the phallotremal sclerite complex is very long and triangular in ventral view in C. mawsmaiensis , whereas the phallotremal complex is smaller and fork-like in C. devva . In C. suadulla , the mesal lobes of tergum X are almost half the length of the lateral lobes in dorsal view, whereas the mesal lobes are almost equal to the lateral lobes of tergum X in C. mawsmaiensis . Moreover, there are clear differences visible in the shape, number and position of the endothecal spines and phallotremal complex of these latter two species.

Description (male only): Length of each forewing 5.50 mm (n=10). Color in alcohol, entirely fulvous and body surface covered with dense, short and fulvous pubescence. Maxillary palps 1.45 mm long (n=10), segment 3 distinctly longer than 2, 3 subequal to 5; labial palpi 0.97 mm long (n=10). Forewing venation: Stem of Rs curved, with sclerotized 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. 44, 45 ).

Male genitalia ( Figs. 7–9 , 32–34 ): Sternum VIII without posteroventral process. Segment IX with tergum short, forming narrow transverse bridge dorsally; anteroventral margin in lateral view bluntly produced and anterolateral margins deeply concave; posterolateral margins nearly smooth; short posteroventral process projecting posteroventrad. Inferior appendages slightly longer than tergum X, obliquely directed upward, apically rounded, each with curved apical spine; in ventral view broadly rounded laterally, inner margin almost straight, with apicomesal sclerotized tooth-like projection. Tergum X with sclerotized pairs of lateral and mesal lobes; lateral lobes each moderately long, in lateral view each with narrow apex, wedge-shaped, bearing multiple sensilla; mesal lobes elongate, digitate, directed posterodorsad. Preanal appendages setose, broadest basally in dorsal view. Phallic apparatus with sclerotized portion long, nearly cylindrical in lateral view ( Fig. 33 ), phallobase tubular, without basodorsal expansion; phallotheca rounded apically; 3 slender, endothecal spines visible in lateral view distal of phallotremal sclerite; phallotremal sclerite very long, almost triangular in ventral view ( Fig. 34 ); in lateral view with spine-like structure directed posterolaterad inside retracted phallotheca.

Female: Not known.

Material examined: Holotype: 3, INDIA: Meghalaya: Cherrapunjee, 25°18’N, 91°42’E, 1,300 m, 24-v-2010, Pandher, deposited in PUPM. Paratypes: Same data as holotype, 93, deposited in PUPM.

Distribution: India (Meghalaya).

Etymology: This species is named after the Mawsmai Caves located in Cherrapunjee.

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.