1880.] 99 



4. Priocnemis piisillus, Schiodte, Kroy. Tidsch., 4 heft, p. 327. 



Like exaltatus in having the clear round spot at the apex of the 

 wings in the $ , but distinguishable at once by the shape of the anal 

 ventral valve of the g, which is rounded at the sides, \/»AI 

 and deeply emarginate at the apex, and has the margins \i yk 

 ciliated with long hairs. The $ may be known by its %~^ 

 stouter antenna?, its less sharply emarginate prothorax pos- Apical seg- 

 teriorly, its shorter wings, which have the externo-medial p r .2msiiius,s 

 nervure straight across the base of the first discoidal cell, its shorter, 

 more convex, metathorax, and its carinated apical segment beneath. 



Length, 7 — 8 mill. 



5. Andrena lucens, Imhoff, Mitth. schweiz. ent. Gres., ii, p. 67. 



Black, shining, head in both sexes wider than the thorax, face clothed with 

 rather long white hairs ; vertex with brownish hairs. Thorax rather sparsely punc- 

 tured, clothed with scattered brownish hairs above ; sides thickly clothed with white 

 hairs. Wings slightly dusky, with the 1st recurrent nervure springing from nearly 

 the centre of the 2nd submarginal cell. Scutellum with only a few very scattered 

 punctures, but with a line of punctures down its centre ; metathorax clothed with 

 white hairs. Abdomen ovate, very shining, the basal segments with very fine 

 scattered punctures ; the rest more densely punctured at their base, but having the 

 extreme apex smooth and impunctate ; 2nd and 3rd segments with a white lateral 

 fringe at the apex ; 4th with an entire white apical band ; 5th densely clothed with 

 white hairs at the apex in the $ , sparsely so in the £ ; 6th, in the $ , covered with 

 brownish hairs. Legs black, tarsi in the £ entirely testaceous, in the ? described 

 from with only the apical joints pale. Scopa in the $ silvery- white. 



Length, 7 — 9 mill. 



Flying about the flowers, &c, of the heath at Burrow Hill, Chob- 

 ham, July and August. 



This species can only be confounded with coitana, and from this, 

 the black clypeus and testaceous tarsi at once separate the g, the $ 

 are more alike ; but the head in lucens is wider, the face covered w T ith 

 white hairs, the thorax more hairy, the scutellum almost impunctate, 

 instead of being rugosely punctured all over, as in coitana, the body 

 wider at the base, and, therefore, more egg-shaped ; the 4th segment 

 with an entire band of white hairs, and the scopa? white, instead of 

 brown. It appears from Imhoff that the colour of the legs varies 

 greatly, the tibia? being often red. 



Holmesdale, Upper Tooting : 

 1th August, 1880. 



