AMERICAN HYMENOPTERA. G5 



as in preceding species; legs clothed with pale pubescence; abdomen ovate, 

 depressed, a rounded spot on each side of first and second segments, a band on 

 third and fourth, broadly interrupted on third and slightly so on fourth, and a 

 dot on each side of fifth segment, whitish ; anal fimbria pale ; venter pieeous, 

 immaculate. Length .35 inch. 



%. — Smaller than Ji ^ larger triangular mark on each side of face, a dot 

 between antennje, clypeus except its apical margin and two minute dots near 

 base, the mandibles except tips, four anterior knees and anterior tibise before, 

 all white or yellowish-white; segments 1 — 5 of abdomen each with a narrow 

 white fascia, those on first and second segments dilated on the sides and inter- 

 rupted on the disk, the others slightly widened on sides; sixth segment, in one 

 specimen, has a narrow fascia abbreviated laterally. Length .30 inch. 



Hab. — California, (H. Edwards). Three specimens. 



Calliopsis piclipes. — %. — Black, shining, delicately punctured, head 

 and thorax thinly clothed with white pubescence; sides of face, spot between 

 antennae, clypeus, labrum and mandibles, white; flagellum long, testaceous 

 beneath; wings hyaline, veined as in precedihg species, costal vein pale testa- 

 ceous; legs with scattered white pubescence, a line on anterior femora within, 

 all the knees, the four anterior tibiae in front, their tarsi entirely, base of pos- 

 terior tibiae, their extreme tips exteriorly, and first joint of their tarsi, all 

 white; basal joint of posterior tarsi as long as the remaining joints taken to- 

 gether, flat, dilated, truncate at tip, which has a tuft of long pale pubescence; 

 abdomen oblong, convex, smooth and shining, thinly clothed with erect white 

 pubescence, a subapical white band on all the segments except the last, more 

 or less emarginate on each side posteriorly; venter shining black, immaculate. 

 Length .26 inch. 



Ha/j. — Colorado, (Morrison). One specimen. A pretty little 

 species, easily recognized by the curiously formed posterior tarsi. 



Calliopsis lateralis. — 9 -^Robust, black, shining, sparsely punctured ; 

 head and thorax rather thickly clothed with a pale pubescence slightly tinged 

 with ochraceous; a subtriangular spot on each side of face near base of mandi- 

 bles, an elongate dot on disk of clypeus, and spot on base of mandibles, white; 

 antennae short, flagellum dull testaceous beneath; disk of mesothorax almost 

 nude, polished; wings faintly dusky, veined as in preceding species; legs 

 subrobust, clothed with short j'ellowish pubescence; abdomen broad ovate, 

 depressed, shining, minutely punctured at base, a yellowish- white spot on 

 each extreme side of segments 1 — 4, rounded on one and two and transverse 

 on three and four; anal fimbria ochraceous. Length .36 inch. 



Hab. — California, (Crotch). One specimen. This species has a 

 broad abdomen, with pale lateral spots. 



Calliopsis mexicanus. — 9- — Black, head and thorax very coarsely 

 conflueutly punctured, very thinly pubescent; apex of flagellum beneath 

 testaceous; immediately behind the postscutellum the margin of the meta- 

 thorax is coarsely striated, behind which there is on each side a smooth polished 

 space; wings subhyaline, broadly dusky at apex, second submarginal cell as 

 long as the first, narrowed one-third to marginal, receiving the first recurrent 

 nervure one-third from the base and the second near the tip; posterior tibiae 



TRANS. AMER. ENT. SOC. VII. (9) MARCH, 1878. 



