1740 Insects. 



Sp. 23. Andrena Trimmerana. 

 Melitta Trimmerana, Kirby. 



Female. — (Length 7 lines). Black ; the pubescence on the face is 

 of a brown-black ; the antennae as long as the head and half the thorax. 

 Thorax clothed above with a rufo-fulvous pubescence; the tegulae pi- 

 ceous ; the wings hyaline, their nervures testaceous, their apex 

 slightly clouded ; the legs have a fuscous pubescence above ; the 

 tarsi ferruginous beneath ; the floccus very pale ochraceous, nearly 

 white, as is also the scopa beneath, above it is brown-black. Abdo- 

 men ovate, and clothed with a fuscous pubescence ; the anal fimbria 

 black. 



Var. — The scopa is sometimes pale brown above. 



Male. — (Length 5 — 6 lines). Black; the head a little wider than 

 the thorax ; the antennae as long as the head and thorax, the joints 

 arcuate : the mandibles have a minute tooth at their base, their tips 

 ferruginous ; the face clothed with pale rufous pubescence, as well as 

 the thorax and legs ; the wings hyaline, their apical margins slightly 

 clouded; the apical joints of the tarsi ferruginous. Abdomen has 

 a patch of long hairs at the base of the second segment in the centre ; 

 the apical segment is clothed with ferruginous hair. 



This species appears to be rather local ; it is, however, extremely 

 abundant on Hampstead Heath, where it is very subject to being 

 stylopised ; I took a number thus infested, and reared the perfect I 

 Sty lops from them : the antennae of the females are longer than in any 

 species with which I am acquainted. 



Sp. 24. Andrena longipes, Shuckard. 



Female. — (Length 5 — 6 lines). Black; the face thinly clothed 

 with pale fulvous pubescence, a thickish tuft of the same above the 

 base of the antennae, which are piceous beneath ; the scape entirely* 

 black, nearly as long as the head and thorax. Thorax clothed 

 above with fulvous pubescence, rather paler on the sides and 

 beneath ; the tegulae and nervures testaceous ; the wings subfuscous, j 

 slightly clouded at their apical margins ; the legs have a thin fulvous: 

 pubescence ; the floccus very pale, nearly white ; the scopa fulvous ; 

 the posterior tibiae and all the tarsi ferruginous. Abdomen oblong-; 

 ovate, convex, the margins of the segments narrowly piceous, and 

 having, except the basal one, a narrow fascia of pale fulvous pubes-j 



