LIST OF DIPTERA. 355 



Dasypogon guttula ? Wied. Dipt. Exot. i. 228, 27. Auss. Zweif. 

 i. 411, 74. Mas. et fem. — Niger, capite fulvo-cinereo, thorace 

 dnereo-nigro, pilis nonnullis longis nigris vestito, abdominenigro- 

 ceneo nitente nigroque pubescente, subtus obscuro pilisque canis 

 vestito, antennis pedibusque nigris, alis limpidis. 

 Body black : head gray, with a tawny tinge, covered with 

 rather long hoary hairs, as broad as the chest: eyelets seated 

 on a tubercle: eyes dark red: mouth black, very short: feelers 

 black ; second joint about half the length of the first : chest 

 and breast having a gray bloom, and slightly covered with long 

 black hairs : abdomen much narrower and longer than the chest, 

 but not twice its length, cylindrical, shining, and with a metallic 

 tint above, dull beneath, covered with black down, and clothed be- 

 neath with hoary hairs, which are longest, and most frequent at the 

 base: legs rather short and stout, black, shining, clothed with black 

 down, and beset with hoary hairs and black bristles ; hind shanks 

 club-shaped ; hind feet wide, especially the first joint, which is 

 as long as the three following joints, and much broader : wings co- 

 lourless ; wing-ribs and veins piceous, the latter black towards the 

 tips ; poisers tawny. Length of the body 2J lines ; of the wings 

 4 lines. 



a. New York. Presented by E. Doubleday, Esq. 



b. Ohio. Presented by the Entomological Club. 



c. ? 



Dasypogon Falto, n. s., mas. et fem. Niger, capite pectoreque cano 



pilosis, thorace fulvo quinquevittato, abdominis segmentis utrin- 



que cano fasciculatis, antennis pedibusque nigris, tibiis tarsisque 



basi flavis, alis limpidis apice subcinereis. 



Body black : head a little broader than the chest, covered with 



a brown bloom, thickly clothed above and behind with black hairs, 



and beneath with white hairs; front covered with silvery down, 



which appears dark tawny in some aspects, and adorned with 



thick tufts of golden hairs : eyes bronze ; fore part flat, not very 



distinct from the other part, but with larger facets : feelers black ; 



first and second joints clothed with long black hairs ; first joint 



linear ; second joint club-shaped, shorter than the first; third joint 



long, nearly linear, but conical at the base, and slightly compressed 



before one-third of its length, longer than the first and the second 



joints ; fourth, fifth, and sixth joints very short, like a spine at the 



tip of the third : chest black, shining, clothed with long black hairs, 



and adorned with dark tawny down ; this down is mostly disposed in 



five stripes, which proceed from the fore border to the disk, the outer 



pair are oblique, the inner pair are at first straight, then form a right 



2 I 3 



