AMERICAN HYMENOPTERA. 1G9 



margin of abdominal segments one to four, that on second deeply emarginate 

 on anterior middle and that on fourth very narrow and interrupted, line on 

 apex of sixth and the seventh entirely, all white; posterior margin of cheeks, 

 sides of prothorax, pleura, sides of metathorax, legs and abdomen, except base 

 of second and third segments, ferruginous; wings hyaline; postpetiole punc- 

 tured ; gastrocoeli rather deep. Length .35 inch. 



Hab. — Bastrop, Texas, (L. Heiligbrodt). Allied to Jionestus. 



111. honestus, Cress. Trans. Am. Ent. Soc. i, p. 310, S . 



Hab. — W. Va., Ga. A very pretty species easily recognized by 

 the fulvous abdomen, with the first four segments margined at tip 

 with yellowish, and the apical segment entirely yellowish; legs ful- 

 vous; head and abdomen black and white; antenna3 black above, pale 

 beneath, with broad whitish annulus above; wings hyaline. Length 

 I .42 inch. 



112. milvus, Cress. Trans. Am. Ent. Soc. i, p. 305, % . 

 C/opini; l^rov. Nat. Can. vii. p. 250, S . 



Hab. — Can., N. H., Mass. A long, narrow black species with 

 honey-yellow antennae, scutellum, legs and abdomen, except last three 

 segments which are black; the face and coxae are pale-yellow and the 

 wings yellowish-hyaline. Length S .05 inch. 



113. volesus, Cress. Trans. Am. Ent. Soc. i, p. 30-4, $ . 



Hab. — Massachusetts. A robust black species, with the second and 

 third segments of abdomen entirely ferruginous, and the two apical 

 segments each with a white spot; coxal scopa distinct. Length 9 

 .45 inch. 



114. involutus, Cress. Proc. Ent. Soc. Phil, iii, p. 183, 9 . 



Hab.. — Colorado. A small shining black species, with the mandi- 

 bles, scape beneath, legs, scutellum obscurely, and second and third 

 abdominal segments ferruginous ; antennae short and strongly invo- 

 lute; postpetiole punctured on disc; gastrocoeli obsolete; wings sub- 

 hyaline. Length 9 .85 inch. 



115. restrictus, n. sp. 



% .—Black, rather slender, subopaque ; face, clypcus, mandibles, palpi, scape 

 beneath, tegulse, short line before, another beneath, scutellum, spot on four 

 anterior coxse beneath, four anterior legs, posterior tibite except tips, and their 

 tarsi, yellow; four anterior femora fulvous behind, posterior femora sometimes 

 fulvous within ; wings subhyaline; second and third segments of abdomen fer- 

 ruginous, densely punctured; postpetiole narrow, aciculated; gastrocoeli small 

 and deep. Length .60 inch. 



Hab — New York. This may prove to be an extreme variety of 

 instabilis. 



TBASS. AMER. ENT. SOC. VI. (2.3) JULY, 1877. 



