Nemoura raptoraloba sp.n.

(Figs. 13-16)

Material examined. Holotype ♂ and 1♀ paratype from Bang Khun Klang, 98° 32’ N, 18° 32’ E, 1200 m, Doi Inthanon National Park, Chiang Mai Province, Thailand, 26 January 1990, P. Chantaramongkol, H. Malicky (PMSL). Additonal Paratypes: Thailand: Chiang Mai Province, Doi Inthanon National Park, CP1TF, 98° 31’N, 18° 31’E, 1600 m, 26 March 1992, H. Malicky, 1♀ (PMSL) . Chiang Mai Province, Doi Inthanon National Park, stream on right below check point, 1500 m, 11 April 1989, 1♂ (PMSL) . Chiang Mai Province, Doi Suthep-Pui National Park, Huai Kaew above Monthatarn, 98° 55’ N, 18° 49’ E, 800 m, 14 February-11 March 2003, Malaise Trap, 1♂ (PMSL) .

Adult habitus. General color pale brown. Head and pronotum without distinctive pigment pattern. Palpi and basal antennal segment pale. Femora with mesal and apical dark bands; tibiae with dark proximal marking. Forewings bearing scattered irregularly shaped pale areas against a slightly darker background.

Male. Forewing length 6.5 mm. Posterior margin of tergum 9 with a row of 5-8 long setae (Fig. 13); tergum 10 with a patch of sensilla basiconica on either side of epiproct tip, and a pair of prominent clusters of triangular spines set on sclerite adjacent to epiproct near apical third. Epiproct somewhat triangular in dorsal aspect, with a pair of thin, spine covered processes projecting at apex (Fig. 13). Paraproct outer lobe with a slender and strongly curved outer spine (Figs. 13-15). Cerci globular. Vesicle about twice as long as wide (Fig. 15).

Female. Forewing length 8.5 mm. Sternum 7 broadly rounded and overlapping basal half of sternum 8 (Fig. 16).

Larva. Unknown.

Etymology. The species name refers to the prominently curved, somewhat raptorial-like outer paraproct lobe.

Diagnosis. As indicated above under N. clavaloba, this species shares the enlarged, spine-like structure on the paraprocts. These paraproct lobes are acute and slender in lateral aspect for N. raptoraloba and N. tenuiloba (described below) but club shaped in N. clavaloba . Nemoura raptoraloba has a cluster of spines on tergum 10 adjacent to the epiproct which are absent in N. tenuiloba and the epiproct is more quadrangular in outline for the latter species.