202 E. T. CRESSON. 



submarofinal shorter than the first, narrowed nearly one-half towards marginal, 

 receiving the recurrent nervures about one-fifth from the base and tip respect- 

 ively; legs with griseous pubescence; abdomen ovate, depressed, shining, thinly 

 pubescent, segments 1 — 4 each with a narrow dull whitish band before apex, 

 narrowed medially and obliquely eraarginate on each side posteriorly; apex 

 fimbriated with pale pubescence. Length .35 — .40 inch. 



'^ . — More convex than J; sides of face, clypeus, labrum and base of mandi- 

 bles white; the four anterior tibise and tarsi more or less yellowish in front; 

 the whitish fascise on abdomen narrower than in J , and sometimes interrupted 

 on the sides. Length .30 — .35 inch. 



Hah. — California, (H. Edwards). Six specimens. 



Perdita zoiialis. — 9- — ^Shining; head and thorax dark metallic green, 

 thinly clothed with a white pubescence; sides of face, spot beneath antennae, 

 clypeus, except sometimes a minute dot on each side, labrum, base of mandi- 

 bles, scape, flagellura beneath, collar, two spots on prothorax, tubercles and 

 tegulse, lemon-yellow ; wings hyaline, beautifully iridescent, stigma subhyaline, 

 marginal cell much shorter than first submarginal, broadly truncate at tip, 

 second submarginal less than half the length of first, narrowed one-half to 

 marginal; legs lemon-yellow, anterior femora behind, a line on four anterior 

 tibise behind, and the posterior tibise and tarsi entirely, black; abdomen flat, 

 polished, lemon-yellow, a dot on each side of first segment and a broad band 

 on apex of segments, I — 4, black; apical segment pale honey-yellow, clothed 

 with long sparse pale pubescence; venter immaculate. Length .25 inch. 



Hah. — Nevada, (Morrison). Ten specimens. Allied to zehrata 



Cress. 



]Voina<la viniliilsfc. — J. — Black, opaque, head and thorax very densely 

 and confluently punctured; sides of face broadly, spot beneath antennae, pos- 

 terior orbits, clypeus except two black spots at base, labrum, mandibles except 

 tips, scape beneath, line on prothorax above, tubercles, tegulse, scutellum, 

 large square mark on sides of pleura and two spots on raetathorax behind, 

 all lemon-yellow; flagellum fulvous, more or less spotted behind with black, 

 second joint much longer than third; wings rather broadly dusky at tips and 

 in marginal cell; legs lemon-yellow, coxse, trochanters and femora behind, 

 also stripe on tibise behind, black; abdomen convex, subopaque, very finely 

 and densely punctured, black, segments 1 — 5 each with a broad lemon-yellow 

 band, that on second segment dilated laterally; venter yellow, with narrow 

 black bands. Length .50 inch. 



%. — Much like the 9> with the head and thorax thickly clothed with pale 

 pubescence, ornamented the same except that the posterior orbits are yellow 

 only beneath the eyes, the yellow mark on sides of pleura much smaller and 

 that on scutellum often divided into two spots. Length .40 — .45 inch. 



Hah. — Nevada, (Morrison). Ten specimens. 



Noinada jociilaris. — 9- — Black, opaque; head and thorax densely 

 punctured, thinly clothed with a pale pubescence; sides of face, clypeus, spot 

 above, posterior orbits, labrum, mandibles except tips, scape in front, line on 

 prothorax, line over tegulae or spot in front, tegulse except a central dot, 

 tubercles, large mark on sides of pleura deeply notched behind, scutellum. 



