88 E. T. CRESSON. 



^. — Face and pleura beneath silvery; abdominal segments 2 — 6 with apical 

 whitish band, the lateral spot on Becond segment sometimes much reduced or 

 wanting; sometimes the mandibles and labrum are more or less ferruginous, 

 and the pleura and metathorax are occasionally entirely whitish or silvery; 

 otherwise like the 9* Length .40 — .45 inch. 



Hah. — Colorado, (Ridings). Twenty specimens. 



EpeoliiS tepanecus. — %,. — Deep black; face, oblique mark on each 

 side of metathorax and coxse silvery-white; posterior margin of prothorax, 

 line over tegulse, line behind tubercles, angular, mark on each side of first 

 abdominal segment, broader laterally and sometimes nearly confluent on the 

 middle posteriorly, and a narrow band on apex of remaining segments slightly 

 interrupted medially, all cinereous, sometimes yellowish-cinereous; a silvery 

 cinereous band on apex of second and third ventral segments; third and 

 fourth ventral segments fringed with long curved black pubescence; meso- 

 thorax shining, sparsely punctured; outer edge of tegulse dull testaceous; 

 wings dark fuscous. Length .55 inch. 



Hah. — Mexico, (Sumichrast). Three specimens. This has much 

 the general appearance of donatus Smith. 



Epeoliis mercatus Fabr. Syst. Piez. p. .389. — 9 • — Black ; face around 

 base of antennse, upper margin of prothorax, lateral margin of mesothorax, 

 interrupted on each side of tegulse, two short lines on anterior middle, pos- 

 terior margin of scutellum, postscutellum, patch on each side of metathorax, 

 posterior margin of tubercles, sublunate mark on each side of pleura, patch 

 between intermediate coxse, rather narrow basal, lateral and apical margins 

 of first abdominal segment, narrow apical margins of segments 2 — 4, that on 

 second sometimes narrowly dilated on each side, and sides of fifth segment, 

 all cinereous or pale buff; scape, labrum, mandibles, tegulse, trochanters, 

 femora beneath, tibiae and tarsi, ferruginous; mesothorax and pleura densely 

 and confluently punctured; scutellum subbisinuate behind, with short, promi- 

 nent lateral teeth ; wings pale fuliginous; tibial spurs black; last ventral seg- 

 ment very broadly rounded at tip, almost truncate. Length .40 inch. 



'^ . — Face, thorax beneath, sides of metathorax, coxse, tibiae, tarsi and middle 

 of venter silvery; apical margins of abdominal segments five and six almost 

 white; wings paler; labrum, mandibles, scape and femora entirely often ob- 

 durated. Length .35 — .40 inch. 



Hib. — Virginia, Georgia, (Ridings); Texas, (Belfrage). Ten speci- 

 mens. This is probably the true meraifus, although the very short 

 description given by Fabricius will apply quite as well to several other 

 species, not found, however, east of the Mississippi River. 



Epeoliis lectus. — ^9- — Black; face, cheeks, thorax beneath, coxse, sides 

 of fifth segment of abdomen and venter densely cinereous; upper margin of 

 prothorax, lateral and posterior margins of mesothorax, two lines on anterior 

 middle, scutellum behind, postscutellum, sides of metathorax, basal half and 

 narrow apical margin of first abdominal segment, confluent laterally, narrow 

 apical margins of segments 2—4 and apical margins of ventral segments 2 — 4, 

 all yellowish-cinereous; base of antennse more or less, tegulse and legs, fer- 

 ruginous; wings hyaline, dusky on apical margins; mesothorax and pleura 



