178 [June 



dark brown, the latter polished, slightly convex and impressed ante- 

 riorly ; metathorax scabrous, black, elevated lines not well defined, the 

 central area large, subquadrate and somewhat transverse. Wings dark 

 fuscous with a strong violaceous reflection ; costa and stigma except 

 tip fulvous, nervures blackish ; areolet 5-angular. Legs pale brown, 

 the coxae and trochanters black. Abdomen ovate, rather short and 

 broad, cinnamon-brown, subopaque ; basal segment broad, very much 

 dilated, confluently punctured and having a tubercle on each side ; 

 peduncle slender; basal fovese of second segment shallow; apical seg- 

 ments smoother and pilose ; beneath, the second and following segments 

 are cinnamon-brown, obfuscated on their middle ; ovipositor not ex- 

 serted. Length 6A lines; expanse of wings llA lines. 

 Hah. — Illinois. Dr. Samuel Lewis. 



The following species also seem to belong to this Section : — Irh. 

 suturalis Say, Ich. Larise Curtis, Ich. ferrwjator Kirby, Ich. duplica- 

 fus Say, Ich. residuus Say, Ich. hilaris Say, Ich. hifasciatus Say and 

 Ich. pennatnr Fab., all of which are unknown to me except the first. 



Section 8. 

 (U. Ich. regnatrix, 'n. sp. 



Large, black ; antennse with a white aunulus ; wings blackish ; central area 

 of metathorax small, elongate, conical ; abdomen exce23tiug basal segment 

 rufous. 



Female. — Black, subopaque. thinly clothed with short black pubes- 

 cence. Head entirely black, sometimes the frontal orbits above the 

 antennae are narrowly white ; clypeus shining, with a deep, rounded 

 fovea on each side ; antenna? short, black, the apical half involute, 

 flattened towards the tip, the 10th to 16th joints above white, beyond 

 this the joints beneath are sometimes tinged with rufous. Thorax 

 closely punctured, the mesothorax in front with an impressed line on 

 each side not reaching the disk ; scutellum black, convex, punctured, 

 shining; metathorax densely and confluently punctured, somewhat 

 scabrous, opaque, the elevated lines well defined, central area small, 

 conical, elons-ate. Wino-s blackish-fuscous, with a rather strong viola- 

 ceous reflection; nervures and stigma black, the latter with a pale spot 

 at base; areolet 5-angular, slightly oblique. Legs black, the anterior 

 tibiae whitish in front. Abdomen elongate-subovate, minutely punc- 

 tured, opaque rufous, the segments strongly incised and compressed at 



