46 E. T. CRESSON. 



prothorax lemon-yellow, a large transverse spot on anterior middle and a spot 

 on each posterior corner, black ; mesothorax densely and coarsely punctured, 

 black, with four yellow stripes, those on disk oblique, converging and abbre- 

 viated behind; scutellum yellow, with a large, broad cuneiform, discal black- 

 mark ; metathorax yellow, black on basal margin ; pleura black, with aslender 

 yellow line on anterior margin, the prominent convex swelling beneath. poster- 

 ior wings entirely yellow; tegulae pale luteous ; wings yellowish-hyaline ; legs 

 lemon-yellow ; posterior coxae very long, attenuate at tips, black beneath, 

 with two black stripes above, the outer one abbreviated at base; their femora 

 with an oblique black stripe on each side near base, and the ^extreme tips 

 black especially on inner side; their tibiae dusky at base; abdomen subcom- 

 pressed, smooth and shining, subpubescent, black, first segment except apical 

 margin, and broad band at base of second and third segments, yellow; petiole 

 short, black. Length .30 inch. 



Hab. — Delaware. One specimen. Easily recognised by the con- 

 spicuous oblique black stripe on posterior femora near base. 



22. Smicra bracata. 



Chalcis bracata, Sanborn, Rep. Sec. Mass. Bd. Agric. Jan. lSfi3, p. 172, fig. 46. 



Hab. — Conn., Penn., I). C. Three specimens. Closely allied to 

 Nortonii, differing principally as follows: — Scutellum with a large, 

 longitudinal ovate black spot ; metathorax black, except spines which 

 are yellow ; protuberance beneath posterior wings black and yellow ; 

 posterior coxae entirely black except a yellow spot at base of outer side; 

 posterior femora with a large discal black spot on outer side and black 

 on inner side with a yellow spot at base and another near apex; lower 

 edge with four large and two to four very small teeth ; posterior tibise 

 black at base. Length .28 — .35 inch. 



Var. co^equalis. — $ . — Differs only by the femora having twelve 

 mostly small irregular teeth, entirely different from those of bracata, 

 and by the protuberance beneath posterior wing being entirely yellow. 

 Length .23— .28 inch. 



Hab. — Massachusetts, Delaware. Two specimens. 



This may be the nigricornis, of Fabr., or the maculata, of Fabr., al- 

 though of the latter Walker (Entomologist, p. 218,) says "scutellum 

 apice bicornutum ; trochauteres flavi," while in bracata the scutellum 

 is broadly rounded at apex and unarmed, and the trochanters are black. 

 In other respects there appears to be nothing to separate them. 



23. Smicra encausta, n. sp. 



% . — Robust, black ; head orange-yellow, middle of the front behind antennae 

 confluent with a transverse mark on vertex enclosing ocelli, which is confluent 

 with posterior margin of head, black; antennae short, robust, black, scape with 

 a yellow stripe beneath ; thorax short, broad, with rather large dilated punc- 

 tures ; prothorax orange-yellow with a large black mark on anterior middle; 



