36 U.S. NATIONAL MUSEUM BULLETIN 277 



Type-locality: Steamboat Springs, Colorado; 1 August 1943, 6800 

 ft. (Bryant). 



Holotype: Female (CAS) 8926. 



14. Scenopinus niger (De Geer) 

 Figure 15 



Nemotelus niger De Geer, 1776, p. 188. 

 Musca fenestraUs Fabricius, 1781, p. 444. 

 Musca rugosa Fabricius, 1794, p. 330. 

 Nemotelus tarsata Panzer, 1809, p. 20. 

 Scenopinus atra Fallen, 1817, p 2. 

 Scenopinus nigripes Meigen, 1824, p. 117. 

 Scenopinus fasciata Walker, 1851, p. 85. 



This well-known European species is distinctive in that the male is 

 one of the very few where the frons broadly separates the eyes and the 

 eyes are not divided into upper coarse facets and lower fine facets. 

 This species appears to be limited to continental Europe and is not 

 found on the Pacific Islands where other dark-winged species occiu". 



Length: Male body 4.45 mm., wing 4 mm.; female body 5.2 mm., 

 wing 4.7 mm. 



Type-locality: Europe. 



Type: Lost? 



Specimens present in most Em-opean collections. 



15. Scenopinus opaculus Loew 



Figure 16 

 Scenopinus opaculus Loew, 1873, p. 145. 



This species from the trans-Caspian region looks like a small edition 

 of S. fenestraUs with dark legs. The male genitaha, however, are quite 

 distinctly different. The abdomen of the female was lost so the details 

 of the eighth sternum and bursa could not be illustrated. 



Length: Male body 1.25 mm., wing 1.25 mm.; female body 1.5-2 

 mm., wing 1.25-1.75 mm. 



Type-locality: Samarkand. 



Type: (ZMH). 



16. Scenopinus physadius (Seguy) 



Figure 17 



Omphrale physadius Seguy, 1930, p. 111. 



This species from Morocco resembles S. glabrifrons in many ways. 

 The frons of the male is shining but does not protrude as much as 

 glabrifrons; the female frons is shghtly granular and is covered with 



