26 U.S. NATIONAL MUSEUM BULLETIN 2 77 



brown; halter stem yellow, knob light tan. Legs with femora and 

 tibiae brown, tarsi straw yellow, darkening distally. 



Abdomen red-brown, with short recumbent hairs, middle segments 

 with membranous posterior margins; see figure for details of eighth 

 sternum and bursa. 



Male. — Unknown. 



Length: Female body 4.0-4.5 mm., wing 3.0-3.4 mm. 



Type-locality: Abu Kowash, Egypt; 5 November 1924 (Efflatoun). 



Holotype: Female (SEE). 



Paratype: Female, Cau-o; 4 July 1918 (Efflatoun) (SEE). 



7. Scenopinus fenestralis (Linnaeus) 



Figure 8 



Musca fenestralis Linnaeus, 1758, p. 597. 



Musca saltitans Scopoli, 1763, p. 350. 



Mitsca spoliata Scopoli, 1763, p. 350. 



Musca senillis Fabricius, 1794, p. 331. 



Atrichia fasciata Schrank, 1803, p. 103. 



Scenopinus pallipes Say, 1823, p. 100. 



Scenopinus sulcicollis Meigen, 1824, p. 114. 



Scenopinus domesticus Meigen, 1824, p. 116. 



Scenopinus rufitarsis Meigen, 1838, p. 165. 



Scenopinus scutellatus Macquart, 1843, pp. 6-8, pi. 1. 



Scenopinus furcinervis Zetterstedt, 1844, p. 897. 



Musca "tarda" Linnaeus. — Haliday, 1851, p. 138.^ 



Scenopinus graminicola Zetterstedt, 1859, p. 6045. 



Scenopinus fuscinervis Schiner, 1862, p. 159. 



Scenopinus scutellatus var. nigroscutellatus Fray, 1945, p. 36. 



Scenopinus perkinsi Paramonov (not Hardy), 1955, p. 651. 



The type of this species has long been lost but it is a well established 

 and easily identified species which is distributed over all of the zoo- 

 geographic regions of the world. It is characterized by the rugose 

 frons in both sexes; antennae long, slender and dark brown; and 

 legs yellow-brown. The halteres vary from white to dark brown. The 

 male terminalia has a notch at the tip of the dorsal lobe that showg 

 considerable variation; see figure 8m. Specimens with these different 



1 In 1851, Haliday published a paper in the Stettiner entomologische Zeitung, 

 vol. 12, p. 138, dealing with the Linnaean collection in London. The reference 

 to "tarda" is to a manuscript name in the Linnaeus collection which HaUday says 

 is a synonym of fenestralis. 



Figure 8. — Scenopinus fenestralis (Linnaeus), male, female: a, wing; b, d, lateral and frontal 

 aspects of male head; c, e, lateral and frontal aspects of female head;/, enlarged detail of 

 antenna; g-i, ventral, lateral and posterior aspects of male terminalia; ;", ventral aspect 

 of female 8th sternum; k, lateral aspect of female 8th and 9th segments; /, female 9th 

 sternum and bursa; m, various emarginations on ventral margin of male 9th tergum. 



