EPEOLUS. 103 



4. Epeolus flavofasciatus. 



Female. Length 4| lines. — Black ; the abdomen with yellow pubes- 

 cent fasciae. The clypeus with silvery, and the sides of the face 

 with golden, pubescence ; the anterior margin of the clypeus trun- 

 cate ; the mandibles, scape, and basal joint of the flagellum of the 

 antennae ferruginous. The margin of the prothorax, tubercles, and 

 a spot beneath them, two longitudinal stripes on the mesothorax 

 anteriorly, a line from the tegulae and along the basal margin of 

 the scutellum, and another curved line passing from the posterior 

 wings down the truncation of the metathorax, of pale yellow pu- 

 bescence; wings light brown, with a hyaline space beyond the 

 submarginal cells, the nervures and tegulae ferruginous ; the legs 

 ferruginous, with the coxae and femora more or less blackish above ; 

 the pectus and posterior coxae beneath with silvery-white pubes- 

 cence. All the apical margins of the abdominal segments with broad 

 pubescent yellow fasciae, that on the first segment is continued up the 

 sides; the fifth segment has the fascia interrupted, and has a silvery 

 spot on its apical margin. 



Male. Bather smaller than the female, and has the antennae 

 entirely black ; otherwise marked as in the other sex. 



Hah. Mexico, Oajaca. 



5. Epeolus nigriceps. 



Female. Length 6f-7g lines. — Black; the pubescent markings 

 yellowish white. Head with a little black pubescence on the front. 

 The margin of the prothorax and a space at the side enclosing the 

 tubercles, the margins of the mesothorax narrowly, and a line pass- 

 ing beneath the scutellum to the insertion of the posterior wings, 

 of yellowish- white pubescence ; a pale spot at the base and apex of 

 the posterior coxae ; a spot at the apex of the femora above, and 

 the tibiae and tarsi, usually with more or less of pale pubescence ; 

 wings light fuscous, the nervures black. The basal segment of the 

 abdomen with pale pubescence, divided in the middle by a quadrate 

 black space, which widens slightly towards the posterior margin, 

 of the segment, then abruptly terminates, a narrow black line also 

 runs to the margin ; the three following segments with pale pubes- 

 cent fasciae on their apical margins, the fascia on the first of these is 

 continued along the lateral margins of the segment ; beneath black. 



Hah. California and Texas. 



6. Epeolus vagans. 



Female. Length 5 lines. — Black, with white pubescent markings, 

 the legs ferruginous. The clypeus and sides of the face, as well 

 as the labrum, with white pubescence. The margins of the meso- 



