338 HYMENOPTERA ACULEATA. 



This species sometimes burrows in the ground and some- 

 times makes its cells in shells. 



0. leucomelana, Kirhij {davirentris, Thorns.). — Black, 

 head and thorax closely punctured, densely clothed in fresh 

 examples of the ^ with fulvous brown hairs, sparingly in 

 the ? with very pale fulvous hairs on the upper surface, 

 with greyish white beneath, but soon fading in both sexes 

 to a uniform grey, wings slightly smoky, propodeal area 

 somewhat shining towards the apex ; abdomen rather dull, 

 closely punctured, and clothed with short brown hairs 

 in the S, shining, less closely punctured and nearly 

 glabrous in the ?, first and second segments in the S, 

 with a short lateral line of brownish pubescence at the 

 apex, the remainder with entire narrow apical bands, first 

 second, and third in the ? with a lateral band of white 

 hairs, fourth with an entire band, S with the sixth segment 

 angulated at the sides, seventh deeply foveated, its apex 

 pointed, second ventral segment with a very large vertical 

 transverse tubercle, third, fourth and fifth emarginate and 

 fringed with golden hairs, armature with the stipites 

 rather wide, parallel at the base, convergent and almost 

 meeting at the apex, sagittee distant at the base, widened 

 and touching each other at the apex, ? with the ventral 

 scopa greyish white ; legs clothed with pale hairs, calcaria 

 pale. 



L. 8-9 mm. 



Rare. Woking ; Chobham ; Chai'lwood, Surrey ; 

 Hastings. Charlton, Kent; Hawley, Hants; Weybridge ; 

 (Smith). Exeter; {Parjitt). Leigh Woods, Bristol ; Cod- 

 denham, Suffolk; (Kirby). Gloucestershire; {Perkins). 

 Maidstone; {Frisbij). Sidmouth ; [P. C. L. Perkins). 



This pretty little species generally makes its cells in 

 bramble stems, but last spring (May, 1893), I found it 

 rather freely, bui-rowing along the side of a sandy road on 

 Woking Common. 



Quite distinct from j^iTrw^/a Duf. and Perr., with which the 

 continental authors confuse it. 



