134 E. T. CRESSON. 



Exomalopsis tepaneca. — 9 . — Black, clothed with a short black 

 pubescence, that on sides of face and cheeks more or less whitish; clypeus 

 with scattered punctures; labrum with fulvous hair; flagellum pale fulvous 

 beneath; mesothorax finely punctured; tubercles fringed posteriorly with pale 

 pile; wings fusco-hyaline, stigma and nervures pale, second submarginal cell 

 receiving the recurrent nervure very near the tip; legs with black pubescence, 

 posterior pair with a floccus of long dense sooty pubescence, with a patch of 

 ochraeeous beneath, tips of tarsi pale ferruginous; abdomen polished, with a 

 dark bluish iridescence, the three apical segments and venter clothed with 

 whitish pubescence, a suboblique line of dense whitish pubescence on sides of 

 third segment; venter pale brown at base. Length .30 inch. 

 Hah. — Mexico, (Sumichrast). One specimen. 



Exomalopsis ? mellipes. — 9- — Black; head thinly clothed with a 

 griseous pubescence, tinged with yellow on occiput; face flat, broad between 

 the eyes, ocelli in a straight line, clypeus flat, nude, shining, feebly punctured, 

 labrum and mandibles except tips dull fulvous; antennae short, pale fulvo- 

 testaceons, first joint long, slender, cylindrical; thorax above clothed with 

 yellow pubescence, long on scutellum, shorter and thin on mesothorax which 

 is opaque, on metathorax and pleura the pubescence is pale; tegulae honey- 

 yellow; wings yellow-hyaline, nervures honey-yellow, marginal cell broad, 

 long, oblique at tip, second submarginal cell small, quadrate, rather more than 

 one-fourth the length of first, the third a little shorter than first, broadly 

 rounded at tip and narrowed nearly one-third towards marginal; legs honey- 

 yellow, the tibiae darker above, the pubescence pale, posterior tibiae and tarsi 

 with a floccus of long, dense beautifully plumose pale pubescence, that on out- 

 side tipped with sooty-black, that on the underside short and fulvous; abdomen 

 broad-ovate, depressed, first segment at base and sides dull honey-yellow; a 

 curved band on the middle of segments one and two, and a broader band at 

 base of 3 — 5 of short appressed yellow pubescence; apex with fuscous, that 

 on the sides long and pale; venter dull honey-yellow at base, fuscous at tip. 

 Length .35 inch. 



Rab. — Mexico, (Sumichrast). Two specimens. This has not the 

 general appearance of an Uxomalopsis, but the form of the antennae 

 and neuration of the wings are much as in that genus ; the floccus on 

 posterior legs is not so dense and the pubescence is plumose. 



Tetrapedia manra. — 9- — Black, shining, the pubescence black, that 

 on face and posterior orbits white; clypeus with a few scattered shallow 

 punctures; antennae varied with fulvous at base, the flagellum beneath dull 

 testaceous; mesothorax finely and sparsely punctured, disk more or less pubes- 

 cent, scutellum with long pubescence; wings fuliginous, much paler at apex; 

 legs clothed with black pubescence, that on posterior tibiae and tarsi long and 

 dense, and that on tips of posterior tibiae exteriorly yellow or yellowish-white, 

 anterior tarsi with a stout tooth at base exteriorly, spurs of intermediate tibiae 

 short, robust, finely pectinate, hooked at tip, those of the posterior tibia longer, 

 very robust and more distinctly pectinate; abdomen black, polished, the sides, 

 apex and apical margin of ventral segments fringed with long black pubes- 

 cence. Length .35 — .45 inch. 



%. — Sides of face with a patch of silvery pubescence; tegulae and legs rufo- 



