152 E. T. CRESSON. 



Seutellum black. 



Clypeus entirely black 15. rubripes, n. sp. 



Clypeus more or less rufous; posterior femora broadly black at apex, 



their tibise and tarsi black IG. canadensis, n. sjn 



Clypeus white; posterior tibise pale ferruginous, black only at 



apex 17. virginiensis, n. sp. 



Abdomen black, segments margined at apex with white: form short, robust, 



abdomen broad 18. albomarginata, n. sp. 



Abdomen black, more or less varied with rufous. 



Apex of first and whole of second and third segments rufous. 10. macra, n. sp. 



Apical margin of second and third segments rufous 20. borealis, n. sp. 



Apex of first, second and third segments broadly rufous. 21. rufofasciata, n.s. 

 Abdomen entirely ferruginous or honey-yellow. 



Thorax black; abdomen ferruginous 22. coloradensis, n. sp. 



Thorax and abdomen honey-yellow 23. Dakota, n. sj). 



1. Glypta tuberculifrons, Walsh, MS. — 9- — Black, shining; palpi, tegulce 

 and short line or spot before, whitish ; antennse rufo-testaceous beneath, base, 

 apex, and above blackish; wings hyaline, faintly yellowish; legs including 

 coxae yellowish- red; anterior coxse, trochanters and base of four anterior tibite, 

 pale yellowish; tip of intermediate tibise and of posterior femora, black ; pos- 

 terior femora ferruginous, their tibise white, with black baud at tip and one 

 near base ; four posterior tarsi black, more or less white at base; face with a 

 median, smooth, rounded swelling; thorax and abdomen with small, close, 

 distinct punctures, more sparse on pleura which is polished ; metathorax with 

 larger, rather sparse punctures and with well defined elevated lines, the flanks 

 more or less rufous; abdomen broader than usual, the oblique lines deeply im- 

 pressed ; first segment with two distant longitudinal carinoe at base, becoming 

 obsolete about the middle ; venter fuscous, banded with yellowish; ovipositor 

 about the length of abdomen. Length 6 lines. 



%. — Differs from 9 only by having the face clothed with a rather dense, 

 short, white pubescence; the flanks of the metathorax are black in the single 

 specimen examined. Length 6 lines. 



Ilab. — Illioois. Readily distinguished by the black clypeus and 

 inandibles and by the entire black bands on posterior tibiae. 



3. Glypta erratica, n. sp. — J. — Black, shining; clypeus, mandibles except 

 tips, pal[)i, tegulse, and line bofore, vvliitish ; antennaj brown-black, darker at 

 base, apex and above; wings hyaline; legs, including coxse, yellowish-red; 

 trochanters whitish beneath, posterior pair blackish above; intermediate tarsi 

 fuscous, pale at base of joints ; base and apex of posterior femora blackish; 

 their tibise black, with a white stripe afioue not reaching the apex and inter- 

 ruj)ted by a black spot near base, the tarsi black, more or less white at base of 

 joints; face with a median rounded swelling; thorax minutely and closely 

 punctured; metathorax rounded, smooth, shining, obsoletely punctured, apex 

 enclosed by a well-defined arcuate carina; abdomen finely and densely punc- 

 tured, the oblique lines deeply impressed, first segment with two sharply defined, 

 longitudinal carinse at base, becoming obsolete on middle; venter piceous; 

 ovipositor as long as abdomen Length 4i linos. 



%. — More slender than 9 > the metathorax above has two more or less dis- 

 tinct oblique carinse, and the anterior coxse are whitish. Length 4 lines. 



