SARCOPIIAGA AND ALLIES 31 



Thorax with long bristles and short, sparse hair, 

 ps dc 3 large; ant dc 2 or 3, the hindmost large; ant 

 acr are merely hairs, but somewhat noticeable from 

 the absence of other hairs ; prsc 1 small or none ; pa 2 ; 

 sa 2 ; inta 2 ; prs 1 large ; npl 3 ; stpl 3 ; scutelhim with 

 two large marginals in both sexes, no apicals nor sub- 

 apicals. 



Wings with first, third and fifth veins hairy; 

 costal spine small; third costal segment hardly half 

 the fifth ; first posterior cell closed and short petiolate, 

 the petiole ending not very far before the tip of the 

 wing. 



Type. — Johnsouia clegans Coquillett, the only 



Table of Species. — -Males. 



Abdomen and legs reddish-yellow, bristles mod- 

 erately long ( Florida, ^lexico ) 



No. 4. clegans Coq. 



Abdomen and legs black, bristles exceedingly 

 long (Peru) No. 5. setosa n. sp. 



No. 4. Johnsonia elegans Coq. 



Coquillett, Proc. Acad. Nat. Sci. Phil., 1895, 316, female. 

 St. Augustine, Fla. 



Male. Front .311 of head at extreme vertex, 

 where it is narrowest; at the middle of the front it is 

 subparallel for some distance, and measures ,355 of 

 head; parafrontals and parafacials silvery pollinose, 

 wide apart at the oral margin ; palpi yellowish brown ; 

 antenna? red, third joint blackish on apical half, reach- 

 ing four-fifths of the way to the vibrisste, which are 

 wide apart at tlie oral margin ; palpi yellowish brown ; 

 bucca one-sixth the eyelieight, the downward-curving 

 bristle at its middle apparently not well developed 

 in the specimen; back of head with three widely sep- 

 arated rows of coarse black hairs and only one inner 

 row of ])ale ones ; outer vertical absent. 



Tliorax ])]ack in ground color, witli gray pollen, 

 on whicli are two l)roa(l, indefinite br()^^'n stripes: no 

 prescutellars. 



