SAKCOPHAGA AND ALLIES 283 



each of which extends forward into a sharp point near 

 the middle hne, thence continues backward in a wide 

 curve with a serrated edge toward but not reaching 

 the subapical lobe of the back plate. The hind part 

 of this plate is lighter colored but still has a dark mar- 

 gin. The apex of the organ is rather truncate and on 

 its acute front angle bears a few small teeth. 



Legs black. 



Length 8-9 mm. 



Seven males. One from San Jose, Costa Rica, 

 and one from Panama, collected by Mr. Sturtevant; 

 four specimens from Peru, S. A., collected by H. A. 

 Parish (Aldrich), and one from Colombia, S. A., col- 

 lected by Charles Wilhelm (Aldrich). 



Holotype.— Male, No. 20569, U. S. N. M., from 

 Peru- 

 No. 136. Sarcophaga timida n. sp. 



Male. Front .188 of head; parafrontals and 

 parafacials golden yellow poUinose, with smooth, 

 satiny appearance and almost devoid of hairs, al- 

 though there are a few in the usual place on the para- 

 facial; frontal stripe red below and black above, very 

 sharply defined, rather narrow; frontal bristles about 

 11, not much divergent below but reaching about to 

 the middle of the second antennal joint; ocellars dis- 

 tinct; outer verticals absent; antennae blackish, third 

 joint 2I4 times the second, reaching four-fifths of the 

 way to the vibrissa, which are at the oral margin; 

 arista long-plumose for nearly two-thirds of its 

 length; facialia black; middle of face gray; palpi and 

 proboscis black, ordinary; bucca one-third the eye- 

 height, its front half golden pollinose, hairs black to 

 the suture; back of head with apparently three rows 

 of black hairs, in the middle with yellowish ones which 

 extend below on the bucca as far as the metacephalic 

 suture; eyes bordered behind with a narrow band of 

 yellow pollen. 



Thorax gray pollinose, with three to five black 

 stripes, the three intermediate ones sharply defined 



