1864.] 157 



tured, opaque black, witli a rather large yellow spot on each side, 

 sometimes reduced to a small round spot, the elevated lines well de- 

 fined, the central area subquadrate, transverse, moderate, its margins 

 polished. Wings subhyaline, more or less stained with fuscous ; ner- 

 vures fuscous, testaceous at base; stigma fulvous; areolet 5-angular or 

 subtriangular. Legs yellow, the posterior coxae beneath and the tips 

 of their femora and tibiaj, black; tips of the tarsi sometimes blackish. 

 Abdomen elongate, opaque, finely punctured, the punctures coarser at 

 base of the second segment ; basal segment distinctly bilineated and 

 finely aciculate; basal fovete of the second segment deep, coarsely aci- 

 culate ; apex of all the segments above with a more or less broad yel- 

 low or yellowish-white band, sometimes slightly indented anteriorly ; 

 in one specimen the bands are much narrowed and that on the 5th 

 segment is wanting and that on the 7th segment is interrupted in the 

 middle ; in another specimen the bands of the two apical segments are 

 nearly white and occupy almost the whole surface ; beneath pale ful- 

 vous, the 2nd, 3rd and 4th segments each with a large lateral blackish 

 spot, remaining segments black. Length 7 J lines; expanse of wings 

 12 lines. 



Ilah. — New York (Mr. James Angus); Virginia (Dr. T. B. Wilson). 



Allied to Lh. laefus Brulle, but is more robust, the bands of the ab- 

 domen much narrower and continued on the apical segments, and the 

 central area of the metathorax is transverse. 



34. Ich. atrifrons, n. sp. 



Black, anteniiiie with a broad wliitisli annulus ; scutellum. sides of metatho- 

 rax, and the apical and lateral margins of the abdominal segments, yellow; 

 legs fulvous varied behind with yellow; wings clear; central area of metatho- 

 rax, elongate-quadrate. 



Fmnale. — Black, somewhat shining, finely and densely punctured ; 

 head entirely black, except the frontal orbits above the antennse which 

 are broadly yellow ; antennae two-thirds the length of the body, black, 

 the 10th to 15th joints whitish, basal joint beneath pale brownish. 

 Thorax : collar above, tegulcS, a short sutural line before and a spot 

 beneath the anterior wings, another spot beneath the posterior pair 

 and a round spot on each side of the pleura immediately over the in- 

 termediate coxoe, yellow ; scutellum flat, polished, yellow, with a trans- 

 verse yellow spot behind it, the carina on each side in front of the 



