S. Mahunka szerk.: Folia Entomologica Hungarica 60. (Budapest, 1999)

Discussion — TV. micropunctatus is a widely distributed species in the north-eastern region of India. Though it has been recorded only from three states, yet we feel, its other neighbouring states wich have almost similar ecological set up, though are thoroughly surveyed, yet there is every possibility of its existence over there. Its life cycle seems to be related with fens particularly in those areas where moisture contents are comparatively low. Because of the peculiar punctation of head, colour pattern of legs and punctation of mesoscutellum, this species is grouped with N. macropunctatus but there are numerous characters which at once make them apart. In the species under discussion the frontal area is micropunctate and smooth lateral furrows ending well before hypothetical hind margin of head posterior supraantennal pit is shallow but larger than anterior one protrochanters whitish and metatrochanters black. However, in N. macropunctatus frontal area macropunctate and rugose lateral furrows ending just before hypothetical hind margin of head posterior supraantennal pit deep as well as of the size of anterior one, protrochanters black and metatrochanters whitish. Etymology — Species is named after the micropunctation of the frontal area. Neostromboceros macropunctatus sp. n. (Figs 2, 6, 10, 14, 18,22,26) Female — Colour: Body black, whitish area: medial spot on tergites 89, hind four trochanters and adjoining parts of coxae and femora basal 1/3 of anterior aspect of front four tibiae, basal 2/3 of metatibia. Tarsi of all legs dark brownish. Wings hyaline, venation including costa, subcosta and stigma fuscous to black. Structure: Average length 8 mm. Antenna incrassate in middle, 1.9 x head width, flagellum not compressed, segments 3 and 4 as 5:4. Clypeus (Fig. 2) shallowly arcuately incised, labium (Fig. 2) broader than long as 3:2 with rounded anterior margin, malar space linear, supraantennal pits double, shallowly confluent, deep, size almost similar. LID:IDMO:EL - 1:1.4:1.2, POL:OCL:OOL - 1:2:1.4. Frontal area at level of eyes, median fovea in form of distinct pit, one above supraclypeal area, other anterior to median ocellus, postocellar furrow absent, inter- and circumocellar furrows distinct lateral furrows sunken, excurved (bulging), ending well before hypothetical hind margin of head postocellar area convex, as long as broad, head narrowing behind eyes. Hind wing with vein lr -m joining at junction of Rs with R+Sc. ICDTTD = 11:4, mesoscutellum subconvex, appendage ecarinate. Tarsal claw (Fig. 6) with subapical tooth shorter than apical one, basal lobe distinct metabasitarsus longer than following 3 joints combined as 3:2, IATS:MB:OATS = 1:3:0.9. Ovipositor sheath as in Fig. 10 (lateral view), and Fig. 14 (dorsal view). Lancet (Fig. 26) having 7 serrulae. Sculpture: Head impunctate except rugose frontal area with dense, minute, confluent punctation. Thorax impunctate except posterior margin of mesoscutellum that bears distinct, deep, pit-like punctures. Abdomen almost impunctate subshining. Pubescence: Silvery, 0.5 x scape length. Male — Average length 7 mm. Similar to female except black tips of tibiae of female ferruginous in male. Penis valve (Fig. 18), gonoforceps (Fig. 22). Material examined — Holotype: Female, Sikkim, Singhik, 1400 m, 8.5.1995, coll. M. S. Saini. Paratypes: 2 females with same data as holotype Sikkim, Gangtok, 1500 m, 1 female, 1 male, 9.5.1986, coll. V. Vasu; Mangan, 1600 m, 2 females, 1 male, 9.5.1986, coll. M. S. Saini; Phodong, 1500 m, 3 females, 15.5.1995, M. S. Saini; Nagaland, Vizho-