182 D. W. C'0(iUILLETT. 



black, claws of frout tai-si minute. Win^s brownish-black, the following parts 

 hyaline; a spot in apex of marginal cell, a larger spot in apex of first submar- 

 ginal cell nearly as long as the second submarginal cell, a spot in centre of second 

 submarginal cell extending nearly whole length of that cell, a streak in apex of 

 first posterior cell, one in middle of second posterior cell, a spot in base and 

 another in apex of third posterior cell, a spot near centre of fourth posterior 

 cell and a large spot in apex of discal cell ; veins between these hyaline parts 

 bordered with brown ; a lighter streak in middle of anal and another in middle 

 of axillary cell ; costal cell reddish ; apical half of first basal cell reddish-yel- 

 low ; vein between discal and third posterior cell much bowed downward, and 

 emitting a stump of a vein which projects into the third posterior cell. Length 

 1.5 mm. 



North Carolina!, Virginia, Georgia, Florida? A single specimen 

 (Keen). 



Additional Species. 



Since sending the above to the publishers I have received the three 

 following species from 8. W. Williston : 



52. Anthrax effreiia n. sp.— Diflers from alpha (No. 48) only as follows: 

 proboscis not projecting beyond epistoma. Wings wholly dark brown, except a 

 large hyaline spot near middle of discal cell encroaching on the third posterior 

 cell, a less distinct spot in middle of fourth posterior cell and the entire apex of 

 second submarginal cell ; basal half of third vein and basal two-thirds of sixth 

 vein liglit yellow. Length 12 mm. 



Arizona ! A single specimen. 



53. Autlirax arizoiieusis n. sp.— Difi'ers from scitula (No. 26) only as 

 follows: Proboscis projecting length of its labellse beyond epistoma; bristles of 

 hind angles of thorax and of scutellum black ; tomentum of abdominal segments 

 4-6 wholly black, of the last segment white ; pile of segments 3-6 wholly black ; 

 venter and legs largely black tomentose ; brown of wings extends from first vein 

 a little beyond base of second transversely to middle of fifth vein, then slightly 

 curving around to near apex of anal cell ; whole of axillary cell hyaline, basal 

 half of anal cell and nearly all of second basal cell whitish hyaline, costal cell 

 and extreme base of wing bright yellow. Length 9 mm. 



Arizona ! A single specimen. 



54. Anthrax otiosa n. sp.— Differs from plagosa (No. 41) only as follows: 

 Epistoma slightly produced ; proboscis not projecting beyond epistoma; first an- 

 tennal joint yellowish, the third elongate-conical at its base ; occiput white 

 tomentose ; bristles of thorax reddish ; breast white pilose ; scutellum reddish, the 

 base black ; sides of abdomen broadly reddish, pile of first two segments white. 

 (Abdomen too much rubbed to give color of tomentum, but it appears to have 

 been largely white) Brown of wings strongly curved outward through base of 

 third posterior cell ; root of second vein not bordered with subhyaline ; venter 

 reddish, white pilose ; tomentum of legs largely white. Length 10 mm. 



Arizona ! A single specimen. 



