1734 Insects. 



pits. Mr. Desvignes has a specimen or two of the female ; it appears 

 in July, and is I expect a very local insect. 



Sp. 12. Andrena albicans, St. Fargeau. 



Apis albicans, Mull. Melitta albicans, Kirby. Apis hcemor- 



rhoidalis, Christi. 



Female. — (Length 5 lines). Black ; the face clothed with white 

 hair, thinly so on the clypeus. Thorax clothed above with fer- 

 ruginous, the sides and beneath with a pallid pubescence ; the 

 tegulae rufous ; the wings hyaline, their apical margins slightly 

 clouded ; the posterior tibiae and tarsi fulvous, the claws ferruginous, 

 the floccus pallid ; the scopa pale fulvous. Abdomen ovate, punctate, 

 shining, the extreme lateral margins have a thin white pubescence, 

 the second, third, and fourth segments have a transverse slight eleva- 

 tion ; the anal fimbria ferruginous. 



Male. — (Length 4 — 4|- lines). Black, the pubescence fulvous; the 

 antennae nearly as long as the head and thorax ; the tegulae rufous ; 

 the wings as in the female ; all the tarsi and the posterior tibiae ful- 

 vous, the latter with a black stain beneath ; the abdomen punctate, 

 the margins of the segments beneath piceous. 



This species appears in April, and is one of the most abundant of 

 the genus, and found everywhere. 



Sp. 13. Andrena atra. 



Andrena pilipes, Fab. — St. Fargeau. Apis atra, Schrank. Melitta 



pilipes, Kirby. Andrena aterrima, Panzer. 



Female. — (Length 6 — 1\ lines). Black ; the face clothed with 

 black pubescence ; the clypeus naked and roughly punctured ; the 

 antennae nigro-piceous beneath. Thorax coarsely punctured ; the 

 tegulae nigro-piceous ; the wings subfuscous, with a dark cloud on 

 their apical margins ; the floccus is of a sooty black ; the scopa 

 white. Abdomen oblong-ovate, punctate, shining ; the anal fimbria 

 sooty black. 



Male. — (Length 5 — 6 lines). Black ; closely resembling the fe- 

 male ; the pubescence on the thorax, however, inclines to griseous ; a 

 few hairs of that colour on the basal segment of the abdomen, which is 

 ovate-lanceolate, shining and punctate ; the pubescence on the legs 

 black ; the claws ferruginous. Kirby's M. pratensis is a variety of 

 this male. 



