AMERICAN DIPTERA. 63 



antennal joint a little longer than first, and about one-half a,s long 

 as second ; disc of metanotuni black, anterior margin red. Three 

 rather broad, confluent, black stripes on dorsum of thorax, the lateral 

 ones abbreviated before and behind, and the middle one still more 

 abbreviated behind ; front and hind metatarsi tinged with black on 

 inside edge. If this species and texana are synonymous, the former 

 is doubtless the typical form. It should be noted that this species 

 shows, though somewhat less noticeably, the triangular smooth space 

 on hind margin of eyes, which is so noticeable in Coiiop>< fron.to Will. 

 The legs are hardly as thickened as usual in Pliyso cephala. 



26. Pliyso oepliala tibialis Say. 



Constantine, ^Nlich., August 81 ; one male. Dixie Landing, Va., 

 August 7 and 19 ; two males. The Michigan specimen has hind 

 tarsi red on basal joints. 



27. Zodiou fulvifrons Say. 



Las Cruces, N. Mex., June 4 to September 27 ; seven males and 

 one female. Also a male from Colorado (Gillette). Length 5.5-7.5 

 mm. All the males have the abdomen reddish yellow and silvery 

 Ijollinose, the reddish interrupted stripes more or less distinct. The 

 female has theni more distinct, and darker. 



Ottawa, Canada (Harrington), June 16 ; one male. Length 5 mm. 

 Agrees very weU with Williston's descri2)tion. 



28. Zodion splendeiis Jaeim. 



Zacatecas, Mex., August 12 ; one female. Length 8 mm. It 

 agrees quite well with Jaennicke's description, somewhat better with 

 Williston's description of Z. leacostoma, but I believe both are the 

 same species. The oblique poUinose markings of second segment unite 

 somewhat indistinctly into a band. The anterior border of fifth seg- 

 ment is shining polished reddish ; the sixth segment is only pollinose 

 on disc, leaving the edges polished brown, the pollinose portion being 

 transversely wrinkled. Extremity of abdomen polished dark brown, 

 enlarged. Wings light yelloAvish at base ; only last tarsal joint (not 

 last two) is blackish ; arista not black. 



Las Cruces, N. Mex., June 21 and August 18 ; two, male and 

 female, specimens. The male has the pairs of spots on fourth and 

 fifth segments better defined and more rounded. 



29. Oucomyia baroni Will. 



Hanover, N. H. (C. ^NI. Weed) ; one female. Agrees with de- 

 scription. Length 5 mm. This species seems to differ from O. 

 loraria principally in being decidedly larger. 



TKANS. AM. ENT. SOC. XXII. MA2CH, 1895. 



