1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 667 



Described from four specimens, labeled No. 258 x , reared from cur- 

 rant Aphis, Myzus ribis Liuu., received from Prof. A. J. Cook. 



Lysiphlebus testaceipes Cress. 



Trioxys testaceipes Cress., U. S. Agric. Report, 1879, p. 208. 



Habitat. — Southern States. 



Many specimens of this species are in the collection, all reared from 

 the cotton Aphis. No. 4G ;X reared May 19, 1879; others at Selma, Ala- 

 bama, by Mr. W. H. Pattou, October 19, 1879, and at Wedgefield, South 

 Carolina, by Mr. Thomas McCutcheon, July 24, 188G. 



Lysiphlebus gossypii n. sp. 



Male and female.— Length, 1 to l} mm . Black, smooth, polished ; meta- 

 thorax piceous, delicately areolated; legs brown or piceous, all tro- 

 chanters and anterior and middle legs beneath and knees of posterior 

 legs, paler; middle coxa3 black basally, posterior coxa 1 black, tips 

 pale; abdomen long, lanceolate, pointed at apex, black beyond 2d seg- 

 ment ; petiole yellow at base, piceous posteriorly, 1st suture whitish, 2d 

 segment piceous, the apex and 2d suture pale. Wings hyaline; stigma 

 and veins pale brown ; the 2d branch of the radius about as long as the 

 1st. The autenuaB in female are 13 jointed, dark brown, the joints of 

 flagellum a little more than twice louger than thick, the terminal joint 

 not longer than the preceding. The male has 14-joiuted antennae, the 

 joints of flagellum a little more than twice longer than thick, the 1st 

 joint of flagellum beiug stouter than the others, the terminal joint being 

 slightly longer thau the preceding, fusiform ; the basal joint of hind 

 tarsi is hardly as long as the three following joints united. 



Habitat. — Columbia, South Carolina. 



Described from many specimens, labeled No. 2400, received from 

 Prof. G. P. Atkinson, and reared from cotton Aphis, Aphis gossypii. 



Lysiphlebus abutilaphidis n. sp. 



Male and female. — Length, 14- mra . Black, smooth, polished; meta- 

 thorax smooth, delicately areolated, black; legs honey-yellow, two- 

 thirds of the hind coxa? basally aud their femora brown; abdomen 

 long, brown, the sutures a little paler, the extreme apex black, the 

 petiole very long, very narrow at base, and bright yellow or sulphur 

 yellow; wings hyaline, the stigma and veins pale brown, the 2d branch 

 of the radius much shorter than the 1st. 



The antenna} in the female are 13-jointed, dark brown, slightly thick- 

 ened toward apex or subclavate, the 1st joint of flagellum hardly twice 

 as long as thick, the following joint a little louger or about (wo and a 

 half times as long as thick, the terminal joint being the longest and 

 thickest joint, about one third longer than the preceding. In the male 

 the antenna? are 14-joiuted, uniformly cylindrical throughout, the joints 

 of the flagellum being about two and a half times as long as thick, ex- 

 cept the 1st joint, which is slightly longer, the terminal joint being 

 much longer than the preceding; the legs are brown, the middle and 



