86 



A REVISION OF THE NEARCTIC SCIOMYZIDAE 



The series from California is of darker color than those from 

 the eastern localities, but it shows no structural or even dis- 

 tinctive color characters to warrant recognition, except possible 

 in a varietal sense. 



Sepedon armipes Loew (PI. Ill, fig. 39.) 



lSr)9. Scpc'({on armipes Loew, Wien. Ent. Monats., iii, 298. 



This species is readily distinguished in the males by the peculiar 

 formation of the hind femora, which are deeply notched beneath, 

 as shown in figure 39. The females are not easy to separate 

 from those of pusillus. However, one can do so by the character 

 furnished in the shape of the genital segments of the abdomen. 

 The abdomen is broad, with the fifth segment compressed later- 

 ally and developed dorso-ventrally, so that the two or three follow- 

 ing segments are differentiated, being strongly carinate above. 

 The third antennal joint of both sexes is sharply pointed. Length, 

 4 to 5 mm. 



Specimens Examined. — 10 cf', 8 9 • 



Connfcticut: Winnipank, August 4, [B. S. N. H.]. 



New York: Ithaca, June 23 to August 7; Freeville, August 17; McLean, 

 July 2-3; [all Cornell]. Yaphank, September 1, (W. T. Davis), [Davis]. 



]M.\ryl.\nd: Near Plummer's Island, July 27 to August 1.5, (W. L. Mc- 

 Atce), [Biol. Surv.]. 



Georgia: Silver Lake, Fulton County, August 10, [Cornell]. 



Illinois: Chicago, [Cornell]. 



Wyoming: Cheyenne, June to August, (F. T. Hartman), [Cornell]. 



Califohni.v : Echo Lake, Siskiyou County, August 29, (J. A. Kusche), 

 [A. N. S. P.]. San Diego County, October 1.5, (E. P. VanDuzee), [Cal. Acad. 

 Sci.j. 



Systematic Arrangement 



Subfam. Dhyomyzin.\e Cresson 

 Neuroctena Rondani 



unatis Fallen {Dryomyza) 

 Dryomyza pallida Day 



simplex Loew {Dryomyza) 



fumida Coquillett 

 Dryomyza Fallen 



dayi Cresson 



SuV)fam. ScioMYZiNAK 

 Trib(! Oidemalopsini Cresson 

 Oidcmatops Cresson 

 frrriKjinca Cresson 



Tribe Sciomyzini Cresson 

 Sciomyza Fallen {Bischofia Hendel) 



varia Coquillett {Bischofia) 



arislalis Coquillett {Dryomyza) 

 Bischofia aristalis Coquillett 

 Dichrochira Hendel 



apicala Loew {Sciomyza) 



albicalceala Cresson 



pleuralis Cresson 



glabricula Fallen {Sciomyza) 

 Dichrochira glabricula Hendel 

 A IrichomcUna ( 'resson 



puhcra Loew {Sciomyza) 



