Indonemoura horvati, Sivec & Stark, 2010

Sivec, Ignac & Stark, Bill P., 2010, Eleven New Species Of The Genus Indonemoura Baumann (Plecoptera: Nemouridae) From Thailand And Vietnam, Illiesia 6 (14), pp. 210-226 : 218-220

Indonemoura horvati sp. n.

( Figs. 29-32 )

Material examined. Holotype ♂ and 1♂, 3♀ paratypes from Thailand, Chiang Mai Province Doi Inthanon National Park , 2100 m, 6 April 1993, I. Sivec, B. Horvat ( PMSL). Additional Paratypes: Thailand: Chiang Mai Province, Doi Inthanon National Park , 1640 m, 98° 27’ N, 18° 31’ E, 7 April 1993, 1♂ ( PMSL) . Chiang Mai Province, Doi Inthanon National Park , 2300 m, 98° 30’ N, 18° 35’ E, 10 April 1989, 1♂ ( PMSL) . Chiang Mai Province, Doi Inthanon National Park, CP 3TF, LF, 1600 m, 98° 31’ N, 18° 31’ E, 25 March 1993, 10♂, 5♀ ( PMSL) , 4♂, 4♀ ( BPS) . Chiang Mai Province, Doi Inthanon National Park , WRC1, 2000 m, 98° 29’ N, 18° 33’ E, 10 April 1996, 2♂, 1♀ ( PMSL) .

Adult habitus. General color brown to dark brown. Head, pronotum and wings dark brown; pronotum quadrate with obscure rugosities. Palpi and antennae uniformly brown. Legs pale brown with pale median band on femora; tibiae and tarsi uniformly brown.

Male. Forewing length 7.5 mm. Epiproct widest in apical third, and narrowed to bifid tip in dorsal aspect ( Fig. 29 ); ventrolateral aspect with a spiny, subapical lobe ( Fig. 30 ). Outer lobe of paraproct long slender, acute, and curved ventrad in lateral aspect; mesal lobe about as long as outer, slender and acute; inner lobe split basally into a pair of short, acute, overlapping projections ( Fig. 31 ). Tergum 10 and 9 each with sparse patches of short sensilla. Vesicle long and little expanded near tip ( Fig. 31 ); hypoproct apex bulb-shaped and bearing a cluster of setae.

Putative female. Forewing length 10 mm. Subgenital plate a short, wide truncate projection ( Fig. 32 ). Sternum 7 not projecting over base of sternum 8.

Larva. Unknown.

Etymology. The patronym honors our colleague and friend B. Horvat, curator at the Slovenian Museum of Natural History, for his assistance in collecting the type series of this and other Asian specimens.

Diagnosis. See above under I. bilobata . This species is similar to I. rostrilobata in general epiproct and tergal setation features but paraprocts for the two species are quite distinct. The mesal paraproct lobes for I. horvati taper throughout their length to a fine point ( Fig. 31 ) whereas those for I. rostrilobata are slightly swollen subapically ( Fig. 50 ).

Figures

Figs. 29-32. Indonemoura horvati. 29. Male terminalia, dorsal aspect. 30. Male terminalia, lateral aspect. 31. Male terminalia, ventral aspect. 32. Putative female terminalia, ventral aspect.

Figs. 47-50. Indonemoura rostrilobata. 47. Male terminalia, dorsal aspect. 48. Male terminalia, lateral aspect. 49. Male terminalia, ventral aspect. 50. Male paraprocts, caudal aspect.