AMERICAN HYMENOPTERA. 201 



Descriptions of new North American HYiHEl^OPTERA in 

 the collection of the American Entomological Society. 



BY E. T. CRESSON. 



Family A P I D .E . 

 (Continued from page 136.) 



Calliopsis cinctus. — 9- — Black; head, thorax and legs clothed with 

 a long griseous pubescence, sparse on vertex, clypeus and disk of thorax; 

 flagellum dull testaceous beneath; wings slightly dusky, second submarginal 

 cell rather shorter than the first, narrowed nearly one-half towards marginal ; 

 pubescence on tarsi brownish; abdomen oblong-ovate, depressed, smooth and 

 shining, with a few scattered pale hairs at sides, segments 1 — 4 each with a 

 pale yellow band, more or less dilated laterally and subemarginate on each 

 side posteriorly, the fifth segment with two pale yellowish spots; anal fimbria 

 fuscous; venter dull piceous, immaculate. Length .40 inch. 



^ . — Narrower and more convex, the pubescence on head and thorax whitish ; 

 clypeus except black spots at base, labrum, lower sides of face and mandibles 

 except tips, white; tegulse piceous; anterior tibiae and tarsi in front, and spot 

 at extreme base and apex of intermediate tibise, yellowish; abdomen convex 

 above, segments 1 — 6 each with a whitish band, narrower than in 9 a-nd not 

 dilated on the sides, that on sixth segment abbreviated laterally. Length 

 .35 inch. 



' Hah. — Nevada, (Morrison). Two specimens. Allied to zchrtitus 

 Cress. 



Calliopsis zonalis. — %. — Black, shining, clothed with an ochraceous 

 pubescence; sides of face, three spots beneath antennae, clypeus except two 

 black points near base, labrum and mandibles except tips, yellow; antennaa 

 dull testaceous beneath ; mesothorax finely punctured, nude on disk; tubercles 

 yellow; tegulae brown, narrowly margined on inner side with yellow; wings 

 faintly dusky at tips; femora at tips, anterior tibise in front, base and apex of 

 four posterior tibise, and most of tarsi, yellow ; abdomen subdepressed, shining, 

 a narrow yellow band on segments 1 — 5, more or less narrowed medially and 

 slightly sinuate on the sides, sixth segment with a lateral yellow spot and a 

 short subobsolete yellow line on middle. Length .30 inch. 



Hah. — California, (H. Edwards). One specimen. Allied to zehratm 

 and ductus. 



Calliopsis Edwar<Isii Cress. — 9 '^a'"- lateralis Cress. — A large series 

 of specimens just received, prove this latter to be merely a variety. 



Calliopsis obscurellns. — 9* — Black, shining, thickly clothed with a 

 rather long, fine, whitish pubescence, that on occiput and thorax above more 

 or less fuscous; a white spot on each lower corner of the face; mandibles 

 castaneous at tips; flagellum fulvous beneath; tegulae piceous ; wings hyaline, 

 faintly dusky at tips, marginal cell long, broad, obliquely pointed at tip, second 



TRANS. AMER. ENT. SOC. VII. (26) FEBRUARy, 1879. 



