158 [June 



scutellum with a small yellow spot exteriorly ; metatliorax finely and 

 densely punctured, black, with a very large longitudinal spot on each 

 side of the middle and a small rounded yellow spot on the extreme 

 sides, the elevated lines well defined, the central area moderate, quad- 

 rate, elongate. Wings hyaline, nervures testaceous, stigma pale ful- 

 vous, areolet 5-angular. Legs dull fulvous, the coxas, trochanters and 

 the four anterior femora behind yellow, posterior coxae at base beneath 

 and at the insertion of the trochanters behind, black. Abdomen elon- 

 gate, rather robust, strongly arcuated, basal segments opaque, apical 

 ones shininir ; basal segment rather narrow, bilineated, finely aciculate ; 

 basal fove^e of the second segment scarcely impressed ; the apical and 

 lateral margins of all the segments, broader at the apical corners, yel- 

 low ; beneath blackish ; ovipositor fulvous, exserted about half a line. 

 Length 5 lines; expanse of wings 8 J lines. 



Hah. — Illinois. Dr. Samuel Lewis. 



To this Section also belongs Ich. compfns Say and Ich. conchtnm 

 Say, the last of which is unknown to me. 



Section 6. 



35. Ich. comes, n. sp. 



Black; face, two lines on mesothorax, scutellum, spot on pleura, Won meta- 

 thorax, legs in part, and the 2nd and 3rd abdominal segments, yellow ; central 

 area of metatliorax quadrate. 



Male. — Head black ; face beneath the antennae, frontal orbits, cly- 

 peus, mandibles except tips, palpi, and a spot on the cheeks just above 

 the base of the mandibles, yellow ; antennae porrect, about two-thirds 

 the length of the body, black, basal joint beneath, yellow. Thorax 

 black, shining, finely punctured ; collar above, tegulas, a broad sutural 

 line before and a narrow one beneath the wings, two lines on the disk 

 of mesothorax (which are confluent before reaching the posterior mar- 

 gin, diverging in front and becoming confluent with the sutural lines), 

 and a rather large irregular mark on pleura, enclosing a small black 

 spot, yellow; scutellum convex, yellow, polished, behind it a short, 

 transverse, yellowish spot ; the lateral carinse of the scutellum have an 

 exterior yellow spot ; metatliorax scabrous, black, with a yellow mark 

 behind having somewhat the shape of a W; elevated lines well defined, 

 the central area moderate, quadrate, not at all transverse. Wings sub- 

 hyaline, slightly stained with yellowish; nervures pale fuscous, testa- 



