64 E. T. CRESSON, 



1^ . — Smaller than the 9 > '^'th the sides of face, clypeus entirely, labrum, 

 mandibles, scape beneath, tips of femora and the tibiae and tarsi, bright 

 yellow. Length .30 inch. 



Hah — Colorado, (Ridings; Morrison). Five specimens. This 

 closely resembles andreniformis, Smith, (of which his flavipes is 

 doubtless the male), but is larger, more pubescent and easily dis- 

 tinguished by the yellow mark on sides of the face beiug attenu- 

 ated above and extending up on the orbits nearly to the summit 

 of the eye. 



Calliopsis zebratus. — 9- — Black; head and thorax rather thickly 

 clothed with a pale glittering pubescence; sides of face narrowly, clypeus 

 except a subtriangular black mark on each side of the middle, a subtriangular 

 spot between antennae, a round spot on each side, and a dot at base of mandi- 

 bles, pale yellowish; flagellum testaceous beneath; disk of thorax sparsely 

 pubescent, closely punctured ; wings hyaline, second fubmarginal cell shorter 

 than the first, and much narrowed towards marginal; legs robust, thinly 

 clothed with pale glittering pubescence, four anterior tibiae short, yellowish 

 in front, their tarsi honey-yellow; intermediate femora compressed and keeled 

 at base beneath; abdomen oblong-ovate, subopaque, segments one to four 

 each with a yellow band across the middle, narrowed within, the fifth seg- 

 ment with a broad yellow band slightly interrupted on the disk; anal fimbria 

 whitish; venter entirely black, the apex with fulvous pubescence. Length 

 .43 inch. 



Hdh. — Colorado, (Morrison). One specimen. A very handsome 

 species, easily distinguished by the rather broad continuous yellow 

 bands on the abdomen. 



Calliopsis SCitulliS. — f.— Shining black, thinly clothed with whitish 

 pubescence; head rather broader than thorax, sparsely ])unctured; a sub- 

 cuneiform mark on each side of face, subtriangular spot between antennae, 

 spot on each side of clypeus and spot at base of mandibles, whitish; flagellura 

 dull testaceous beneath; thorax with a few scattered punctures; wings as in 

 zebratus; legs subrobust, clothed with ])ale glittering bail's ; knees and line on 

 anterior tibiae in front, whitish; abdomen ovate, depressed, polished, a sub- 

 lunate spot on each side of first and second segments, and a rather broad band 

 on the three following segments, sometimes slightly interrupted on the disk 

 and sinuate or subemarginate on each side posteriorly, yellowish-white, apex 

 fimbriated with pale pubescence. Length .30 inch. 



Hah. — Colorado, (Morrison). Twenty-two specimens collected. A 

 very pretty little species, easily recognized by the ornamentation of 

 the abdomen. 



Calliopsis Edwardsii. — 9 . — Black, shining, sparsely punctured, thinly 

 clothed with pale pubescence; a small triangular spot on each side of face, a 

 longitudinal mark on disk of clypeus and spot on base of mandibles, white; 

 flagellum beneath dull testaceous; mesothorax polished, rather thickly punc- 

 tured in front, smooth on disk; pleura thickly pubescent; wings dusky, veined 



