AMERICAN HYMENOPTERA. 83 



beneath; abdomen above marked as in 9; venter banded with fuscous and 

 yellow. Length .35 inch. 



Hah. — 3Iexico, (Sumichrast). Three specimens. 



Osiri!>i marginatum.— '^ J. — Pale yellow, smooth and polished; flagel- 

 lum pale fulvous, fuscous above and at tip; mesothorax greenish- fuscous ; 

 collar strongly bilobate; wings yellowish-hyaline, faintly dusky at tips; legs 

 immaculate; abdominal segments above broadly margined at apex with black, 

 those on the apical segments of the male dilated in the middle; venter faintly 

 banded with fuscous. Length .30 — .35 inch. 



Hah. — Mexico, (Sumichrast). Two specimens. 



Philerenius aniericaiius.— '^ 9.— Form robust, black, finely punc- 

 tured; middle of face, margins of the thorax above, two short lines on anterior 

 middle of mesothorax, line encircling the scutellum and tubercles, and sides of 

 metathorax, clothed with short cinereous pubescence; scutellum bilobate, the 

 lateral teeth short and blunt; tegulse dull testaceous; wings faintly dusky at 

 tips; knees, tips of tibiae and the tarsi ferruginous; abdomen short, convex 

 and nearly globose %, longer in 9; a large lunate patch on each side of first 

 segment broad and confluent at base, and a band on apex of the three or four 

 following segments, interrupted in the middle on second segment, composed 

 of short appressed cinereous scale-like pubescence; venter brown, pale at tip. 

 Length .30 inch. 



Hih. — Canada, (Saunders) ; Colorado, (Morrison). Two specimens. 

 This and the next species have much the appearance o^ Epeolus com- 

 pactus described below. 



Phileremiis inontanus. — %. — Form short, robust, compact, black; 

 face, anterior margin of mesothorax, posterior margin of scutellum, post- 

 scutellum, sides of metathorax, and patch beneath tegulse, clothed with a 

 dense cinereous pubescence; antennae short, entirely black; mesothorax finely 

 punctured, shining, with several longitudinal impressed lines in front; scu- 

 tellum very slightly impressed medially; tegulse dull testaceous; legs robust, 

 clothed with a pale subsericeous pile, tarsi pale testaceous at tips; abdomen 

 short, convex, subglobose, a large lunate mark on each side of first segment 

 broadly confluent at base, a band on apex of second segment interrupted on 

 disk, four spots on third segment, those on the sides small, and two spots on 

 apical middle of third and fourth segments, all composed of short appressed 

 cinereous scale-like pubescence. Length .25 inch. 

 Hah. — Nevada, (H. P^dwards). One specimen. 



Pliilerenius fulviventris. — %. — Black, opaque, finely punctured, 

 clothed with a short, pale pubescence, most dense on the face, sides of thorax, 

 around scutellum and on metathorax; mesothorax rather broadly and deeply 

 impressed on anterior middle; scutellum obtusely bilobate; tegulse and the 

 four anterior legs in front more or less ferruginous; wings fuscous, with a pale 

 spot before apex; abdomen opaque, dull fulvo-ferruginous, black at extreme 

 base and apex, apical margin of the segments with a narrow line of short 

 whitish pubescence, dilated on each side of the disk on segments 3 — 5. Length 

 .30 inch. 



Hub. — California, (Henry Edwards). One specimen. 



