Stenomicra castanea, Grimaldi, 2009

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

Stenomicra castanea , new species

Figures 4 , 8

DIAGNOSIS: Frons white; scutum and scutellum evenly light brown, without central longitudinal light stripe; light brown infuscation on dorsal portion of pleura. Wing hyaline. Abdominal tergites I–IV light brown. Besides the scutum coloration, best distinguished on basis of male terminalia: surstyli straight, not curved, with blunt apex, without microtrichia and few setulae; trunk of aedeagus straight, apex brushy; syntergosternite VII ventrally with median lobe on posterior margin.

TYPE: Holotype, male (dissected, no. 59), Viti Levu : Naitasiri Prov. , 4.8 km N Veisari Stlmt, log rd to Waivudawa , 300 m, 12.XII– 3.I.03. Malaise 1. Schlinger, Tokota’a, 18.075 ° S, 178.362 ° E, FBA 178234. ThL 5 1.20 mm; L rm / L between r-m and m-cu 5 0.50. Type is in good condition, with most of head and thoracic setae intact. In BPBM.

ETYMOLOGY: From the Latin castaneus, for the color of chestnuts, in reference to the color of the scutum and scutellum.

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. 8. Male terminalia of Stenomicra castanea. A. Epandrium with surstyli, posterior view. B. Aedeagus, lateral view. C. Hypandrium, aedeagus, and associated sclerites.