1898.] ENTOMOLOGICAL NEWS. 37 



caterpillars of Limenitis disippus, while from the trailing wild 

 grape vines I have obtained a dozen magnificent achemon 



worms.' 



The full grown larva of Philampelus retires to the stem of the 

 plant after feeding at night and may be found by lifting up the 

 vine. 



The larva of ajax, feeding on the 'big leaves of the papaw, 

 makes no retreat for itself, but rests on the underside of the 

 foliage. The caterpillar of troilus is always to be found on the 

 upperside of the leaf of sassafras in a silken case made by draw- 

 ing the edges of the leaf together. The habits of turnns are 

 similar to those of troilus. The full grown larvae of cresphontes 

 are to be found on the body of the bush, near the ground, feed- 

 ing wholly at night, perhaps. I have taken the latter on the hop 

 tree and prickly ash. 



SYNOPSIS OF THE ASILID GENUS OSPRIOCERUS. 



By D. W. Coquillett, Washington, D. C. 



The following table contains all the species of Ospriocerus 

 known to occur in this country north of Mexico. Rliadainanthus 

 Loew and minos O. S. are unknown to me in nature ; ceacides 

 Loew is a synonym of abdominalis Say. The latter name is not 

 preoccupied in this genus, and there is, therefore, no necessity 

 for replacing it with tzacus, proposed by Wiedemann. 



1. Abdomen largely \ellow 2. 



Abdomen wholly black minos O. S. 



2. Venter of abdomen wholly black 3. 



Venter largely yellow ; black, the entire abdomen except the first seg- 

 ment, base of the second and the genitalia, yellow ; in the female 

 the apex and sometimes the underside of the last segment is black; 

 pulvilli and bases of tarsal claws yellowish, all hairs and bristles 

 black except the short hairs of the abdomen, which are chiefly 

 yellow ; wings blackish, with a strong purplish reflection ; length 

 20 to 23 mm. Arizona. Three males and two females. 



ventralis n. sp. 



3. Sides of abdomen destitute of a row of black spots 4. 



Sides of abdomen each marked with such a row rhadamaiithus Loew. 



4. Hind corners of the second and following two or three segments of 



abdomen, at least ventrally, whitish pollinose entroplius Loew. 



Hind corners of second and other segments of abdomen destitute of 



whitish pollen abdominalis Say. 



