AMERICAN HYMENOPTERA. 89 



coarsely and sparsely punctured; scutellum bilobate, with short prominent 

 lateral teeth; tibial spurs black; abdomen strongly punctured, middle of fifth 

 segment not at all roughened; last ventral segment tinged with ferruginous, 

 convex and rather broadly rounded at tip. Length .40 inch. 



Hah. — Kansas, (Dr. Wilson). One specimen. 



« 



EpeolllS agnatus. — %. — Small, black; face and clypeus clothed with a 

 dense appressed silvery pubescence, on cheeks and occiput the pubescence is 

 more sparse; thorax beneath, upper margin of prothorax, lateral and posterior 

 margins of mesothorax, two lines on anterior middle, posterior margin of 

 scutellum, sides of metathorax, basal and apical margins of first abdominal 

 segment confluent laterally, narrow apical margins of segments 2 — 6 above 

 and two and three beneath, cinereous; remainder of segments five and six 

 above and beneath brown; basal joint of flagellum, tegulse and legs more or 

 less yellowish-ferruginous, tibial spurs yellowish; mesothorax, scutellum and 

 pleura coarsely not densely punctured, abdomen stronglj'- punctured; scutellum 

 bilobate, with broad prominent lateral teeth; wings hyaline, fuscous at tips. 

 Length .40 inch. 



Hah. — Dakota Territory, (Ulke). This may be the % of lecfuii, 

 although the tibial spurs are pale; the thorax and abdomen are 

 sculptured much alike. 



Epeolus conipactus. — 9 •—Small, compact; black; face around base 

 of antennpe, upper margin of prothorax, lateral and apical margins of meso- 

 thorax, one or two spots on anterior middle, broad apical margin of scutellum, 

 postscutellum, sides of metathorax, large spot beneath tegulse, pleura beneath, 

 coxae, basal half and broad lateral and apical margins of first abdominal 

 segment, broad apical margins of segments 2 — 4, dilated laterally and slightly 

 interrupted medially, base of fifth segment, and apical margins of ventral 

 segments 1 — 4, all more or less whitish or pale buflf; tegulse, tubercles and 

 legs ferruginous; mandibles, labrum and base of antennas sometimes more or 

 less ferruginous: vertex and occiput with long pale pubescence; mesothorax 

 and pleura densely and confluently punctured; scutellum subbisinuate behind, 

 lateral teeth short, obtuse ; tibial spurs ferruginous ; last ventral segment sub- 

 convex, broadly rounded at tip; wings hyaline, dusky at tips; abdomen short, 

 robust. Length .35 inch. 



•^ . — More compact, with abdomen almost globose; markings the same as 9 

 except the fifth and sixth segments are broadly whitish at tip; sometimes 

 the second segment has a more or less distinct whitish lateral spot. Length 

 .25 — .35 inch. 



Hah. — Texas, (Belfrage) ; Colorado, (Ridings, Morrison). Four- 

 teen specimens. Easily distinguished by the short compact form, and 

 by the ferruginous legs having concolorous tibial spurs. 



Epeolus aztectlS. — 9- — Black; face around base of antennae, and sides 

 of fifth segment of abdomen cinereous; upper margin of prothorax, lateral and 

 posterior margins of mesothorax, posterior margin of scutellum, postscutellum, 

 patch on each side of metathorax behind posterior wings, posterior margin 

 of tubercles, oblique line on each side of pleura, large spot on each side of 



TRANS. AMER. ENT. SOC. VII. (12) MARCH, 1878. 



