OF WASHINGTON. 135 



is an Alophora sens. Schiner, of the sub-genus Hyalomyia* 

 Meigen's figure misled Say. This species probably does not 

 belong in the Phasiid<z at all. I am inclined to refer it to the 

 genus Wahlbergia in the Phaniidce. The description agrees 

 well with W. atripennis (see description of latter in this paper), 

 yet there is room for doubt, as it entirely omits mention of the 

 most important characters. Under these circumstances, I be 

 lieve it advisable to indicate Phasia atripennis Say as a doubt 

 ful synonym of Wahlbergia atripennis nov. sp., and it may be 

 so considered until it is identified as distinct. 



Hyalomyia occidcntis Wlk. and H. triangulifera H. Lw. I 

 can identify none of the following four new species with either 

 of the above. 



Hyalomyia punctigera n. sp. 



Male Eyes reddish-brown, rather closely approximated just in front 

 of the ocelli ; front narrow, widening toward the antennae ; vitta black, 

 obsolete in front of the vertex, much widened at the base of the 

 antennae, being thus triangular, with a row of fine black bristles on each 

 side ; sides of front silvery ; face and ocellar borders silvery, the epistoma 

 very strongly, unusually produced ; antennae blackish ; proboscis and 

 palpi blackish, the latter slender, rather elongate, and much enlarged at 

 the tip ; occiput black, silvery pollinose on the sides and below, brownish 

 near the vertex, gray hairy below ; cheeks silvery, gray hairy below. 

 Thorax above black, slightly brownish pollinose, with short black hair ; 

 shoulders and pleurae slightly brownish or cinereous ; scutellum shining 

 black ; thorax and scutellum with black bristles on the sides and behind. 

 Abdomen black, with an interrupted, somewhat indistinct, median black 

 vitta ; first two segments shining, with a metallic greenish luster, 

 covered with short black hair ; last two and anal segments, and median 

 hind border of second segment, metallic, cinereous pollinose, covered 

 with short, black, scattered hairs, each one arising from an opaque black 

 dot, this punctation rather more distinct than in other species ; venter 

 concolorous, slightly cinereous on the posterior half. Legs black, black 

 hairy, especially the femora, which are considerably enlarged ; pulvilli 

 whitish, claws black, elongate. Wings hyaline, broadly tawny at base ; 

 tegulae tawny, forward scales partly whitish ; halteres tawny. 



Length of body, 5 mm. ; of wing, 4 mm. 



One specimen. Dixie Landing, Va. (D. C.). This is a 

 very distinct form in the unusually prominent epistoma, the 

 club-like palpi and the enlarged femora. No doubt further 

 specimens will vary from the above in the extent of the 

 cinereous on the abdomen. 



* Mr. E. Girschner has referred this to a new sub-genus, Paraloplwra. 

 See Zeitschr. fur Naturw., Bd. LX, 1887. Separate, 1888, p. 38. 



