ANDRENID.-E. 247 



Common in many localities in April, and widely distri- 

 buted, thouji^h I have no record from Ireland. In my 

 synopsis I had some doubt as to the respective males of 

 this and the foUowiog species, and unfortunately reversed 

 them, but I have since secured c? and ? from the same 

 burrows, so I have no hesitation in correcting my mistake. 

 Rarely stylopized. 



A. helvola, Lhm. [antjulosa, Kirb., Tlioms.). — Closely 

 allied to vafiuiis, but differing in the S by the narrower 

 form, the less quadrate vertex, the distinct tooth at the base 

 of the mandibles, the shorter third joint of the antenna;, 

 which is scarcely longer than the fourth, the narrower 

 apical ventral valve of the abdomen, and the pale apices of 

 the posterior tibias. 



The ? differs from varians, in the pale pubescence of the 

 face and underside, the golden brown scopaa and piceous 

 tibiae, and the white or greyish- white hairs of the abdomen. 



L. 9-11 mm. 



Not common ; I have both sexes taken in a garden at 

 Bromley, and have the 9 from Wandsworth, Esher, and 

 Reigate. Mr. R. C. L. Perkins has taken it at Oxford ; 

 Norwich J (Bridgman). Colchester; (Harivood). Rugby; 

 (Morice). It is doubtful to me how many of the other 

 recorded localities belong to this and how many to the 

 following, but I suspect that most of the more northern 

 localities apply to fucata. 



A. fucata, Smitli. — I have at last convinced myself 

 that this is really specifically distinct from the above. 

 The (J may be known by the wider more emargiuate 

 tubercle on the labi'uni, the slightly larger mandibular 

 tooth, the more glabrous abdomen, which is more 

 polished and more finely punctured ; the ? by the 

 much wider, less pointed tubercle of the labrum, 

 the more regularly and closely punctured clypeus, and 

 by the more shining, less hairy, loss rugulose, and less 

 punctured abdomen, which has no white hairs dorsally. 



