AMERICAN HYMENOPTERA. 251 



densely punctured, sparsely clothed with erect white hairs; legs honey-yellow, 

 clothed with pubescence of the same color; abdomen elongate-ovate, closely 

 punctured, thinly clothed with long erect whitish hairs, apical margins of seg- 

 ments above fringed with white pubescence. Length 4i — 7 mm. 

 Ilah. — Texas, Colorado, Nevada. Four specimens. 



Mntilla niixtura. — 9- — Ferruginous; head round, scarcely as wide as 

 thorax, vertex clothed with pale golden pubescence; eyes prominent; flagel- 

 lum of antennae fuscous, slightly pruinose, tips of mandibles blackish ; thorax 

 subovate, narrowed posteriorly, clothed above with pale golden pubescence; 

 metothorax obliquely truncate, flanks coarsely punctured; legs thinly clothed 

 with white hairs, spines of the tarsi black; abdomen ovate, closely punctured, 

 thinly clothed with mixed black and yellow hairs, apical half of second seg- 

 ment pale ferruginous, margin blackish, apical margins above and beneath 

 fringed with glittering whitish hairs. Length 7 mm. 

 Hah. — Colorado. 



9Iiitilla Plieedra. — 9 • — Ferruginous ; head subquadrate, posterior angles 

 rounded, vertex clothed with deep golden pubescence, antennje fuscous, flagel- 

 lum pruinose, tips of mandibles blackish, eyes round, cheeks fuscous, closely 

 punctured; thorax short, ovate, clothed on disc with deep golden pubescence, 

 flanks fuscous, metathorax abruptly truncate; legs fuscous, thinly clothed 

 with long whitish hairs; abdomen elongate-ovate, densely clothed above with 

 deep golden pubescence, interspersed with long erect hairs of same color, 

 fringes of apical margins more dense; under side fusco-ferruginous, sparsely 

 punctured. Length 7 mm. 



Hah. — Nevada. Allied to auraria, but may be distinguished by 

 the tegument being ferruginous. 



9Iutilla Clio. — 9- — Black; head round, not as wide as thorax, clothed 

 on vertex with coarse ochraceous pubescence; eyes round, prominent; antennse 

 black; thorax robust, ovate, narrowed posteriorly, clothed on disc with coarse 

 ochraceous pubescence, metathorax abruptly truncate, reticulate, flanks im- 

 punctate; legs black, having a few scattered, long black hairs, intermediate 

 and posterior tibiae armed with spines, calcaria long; abdomen ovate, basal 

 half of second segment black, with coarse black pubescence, apical half and 

 sides of third, fourth and fifth segments clothed with coarse ochraceous pubes- 

 cence, third and fourth, at middle, and apex black. Length 9^ mm. 



Hah. — Vancouver's Island. (H. Edwards). 



IVIntilla Erato. — 9* — Eufo-castaneous; head round, not as wide as thorax, 

 clothed with dense yellowish-white pubescence; eyes large, round, prominent, 

 polished; antennse fuscous, scape thinly clothed with whitish hairs; tips of 

 mandibles black ; thorax short, ovate, coarsely punctured, metathorax abruptly 

 truncate, thinly clothed with white hairs; legs sparsely clothed with long 

 glittering white hairs, femora punctured; abdomen elongate-ovate, coarsely 

 and deeply punctured, thinly clothed with erect glittering white hairs, apical 

 margins of first and second segments densely fringed with white pubescence; 

 under side same as above. Length 8 — 12 mm. 



Hah. — Texas. Two specimens. 



