1865.] 185 



Epeolus vicinus, n. sp. 



Velvety-black; face, collar, most of pleura, two lines on anterior middle of 

 mesothorax, its lateral and posterior margins, posterior margin of scutellum, 

 postscutellum, lateral marks on metathorax and bands on abdomen interrupted 

 in the middle, yellow; mouth, base of antennae, tegulse and legs, ferruginous; 

 wings subhyaline. 



£ 9 • — Very similar to the preceding species, but is much smaller 

 aud more robust in proportion to the size, and differs in color and mark- 

 ings as follows: — The head is entirely black, except the labrum and 

 mandibles, which are ferruginous; the two short lines on the anterior 

 middle of the mesothorax and its posterior margin are much broader; 

 the mark on the pleura is much the same in the 9 and is confluent be- 

 neath with the silvery-ochraceous pubescence which covers the under 

 surface, thereby leaving a large rounded black spot on each side of the 

 pleura ; in the % this black spot is indistinct, being almost entirely 

 covered by the silvery-ochraceous pubescence ; the lateral marks 

 on the metathorax are shaped the same, but not so distinctly de- 

 fined; the wings are much clearer; the legs, including the coxas, are 

 entirely ferruginous ; the first segment of the abdomen has its basal, 

 apical and lateral margins rather broadly yellowish, the two former are 

 interrupted on the middle, especially the apical margin ; the fascia on 

 the second segment is much dilated on each extreme side, nearly reach- 

 ing the base of the segment; the fasciae on the remaining segments are 

 very slightly or not at all interrupted on the middle; in the 9 the fifth 

 segment is depressed, subrugose and fuscous on the disk, truncate at 

 tip, and has a subtriangular yellowish mark on each side. Length 5-] 

 lines ; expanse of wings 9 lines. 



Collection. — -Ent. Soc. Philad. Two 9 , one % , specimens. 



Epeolus pulchellus. n. sp. 



Black : face, collar, spot on anterior middle of mesothorax, a spot on each 

 side before the scutellum, most of pleura, postscutellum, sides of metathorax 

 and broad marks on each side of abdomen above, bright yellow ; wings subhy- 

 aline, fuscous towards the tips; antennae, mouth, tegular, legs, and apex of 

 venter, ferruginous. 



Male. — Robust, deep velvety-black ; the face about the insertion of 

 the antennae, densely clothed with short, appressed, golden-yellow pu- 

 bescence ; labrum and mandibles obscure ferruginous. Thorax coarsely 

 rugose; collar, a rounded spot on the anterior middle of the mesotho- 

 rax, faintly divided by the finely impressed central line, a rather large 

 transverse mark on each side in front of the scutellum, lateral posterior 

 margin of the scutellum and the postscutellum, deep yellow ; pleura 

 marked as in the 9 of E- vicinus ; scutellum rugose, its posterior mar- 



