Stenomicra brunnea, Grimaldi, 2009

Grimaldi, David A., 2009, The Asteioinea of Fiji (Insecta: Diptera: Periscelididae, Asteiidae, Xenasteiidae), American Museum Novitates 3671, pp. 1-60 : 5

Stenomicra brunnea , new species

Figures 4 , 7

DIAGNOSIS: Frons whitish, pollinose; scutum and scutellum dark brown, scutum with yellow longitudinal stripe that is narrower than distance between dorsocentrals; pleura without brown infuscation. All abdominal tergites brown; wings hyaline. Scutellum narrow. Anterior fronto-orbital and postvertical setae minute and light, barely detectable. Arista with 5 dorsal, 2 ventral branches. Besides coloration, also distinguished from similar species by male terminalia: Surstylus relatively short, apical third curved upward, apex acute; with dense setulae over much of surstylus. Aedeagus with straight trunk, apex brushy and with narrow tip.

TYPES: Holotype, male (dissected, no. 57), FIJI: Taveuni : Cakaudrove Prov. , 5.6 km SE Tavuki Vlg., Devo Peak , 1187 m, 30.VI– 14.VIII. 2004, Malaise 1, Schlinger, M. Tokota’a, 16.843 ° S, 179.966 ° W, FBA 50904. ThL 5 1.22 mm; L r-m / L between r-m and mcu 5 0.53. In BPBM. Specimen is missing the scutellar and most dorsocentral setae. In addition, there are 3 females that match the male holotype in color and chaetotaxy, also from Cakaudrove Prov.: 3.2 km NW Lavena Vlg., Mt. Koronibuabua, 217 m, 24. II –11. III.04, Malaise 3, Schlinger and Tokota’a, 16.855 ° S, 179.89 ° W, FBA127415, 153258, 168376.

ETYMOLOGY: From the Latin, brunneus, for brown, in reference to the color of the scutum and tergites.

Figures

Fig. 4. A–E: Terminal abdominal segments and syntergosternites of male Periscelididae (ventral views, not to same scale). A. Stenocyamops robustus. B. Stenocyamops luteus/pseudoluteus. C. Stenomicra distincta. D. Stenomicra distinctipennis. E. Stenomicra castanea. F–H: Thoraces (dorsal view) of select Fiji Stenomicra (to the same scale). F. S. brunnea. G. S. xoutha. H. S. sylpha.

Fig. 7. Male terminalia of Stenomicra brunnea (all to the same scale). A. Left surstylus, lateral view. B. Aedeagus, lateral view. C. Hypandrium, aedeagus, and associated sclerites.