88 HYMENOPTERA ACULEATA. 



with a series of long bristles ; legs with the tibiaa scarcely 

 spinose, tarsi rather densely so. 



L. 18-22 mm. 



Common in most sandy situations in the south, and re- 

 corded from Lancashire (TF. Gardner). I have, however, 

 no other northern or midland localities for it. It provisions 

 its nest with caterpillars. 



(ScBG. MISCUS, Jur.) 



A. campestris, Latr. — Exactly like the preceding in 

 general form and colour, but differiug in having the third 

 submarginal cell almost always petiolated and in having the 

 propodeum very finely, regulax'ly, and diagonally strigose, 

 the striae meeting along the centre, the colour of the ? is 

 darker than that of sahulosa and more pruinose. 



L. 15-20 mm. 



In similar localities with the preceding, but generally 

 rarer; abundant, however, on the sandy commons about 

 Woking, Chobham, and Wey bridge ; provisions its nest with 

 caterpillars. 



(SuBG. PSAMMOPHILA, Dhlb.) 



A. Mrsuta, /Scop, (viatica, Smif]/). — Black, first seg- 

 ment of abdomen posteriorly, the second and the base of the 

 third red. Head and thorax largely and rugosely punc- 

 tured, clothed with black and gray hairs in the S , or black 

 only in the ? , face in the c? more or less silvery ; pro- 

 podeum rugose, not diagonally striate, wings slightly smoky 

 in the cJ with an apical cloud ; first segment of the abdo- 

 men much widened posteriorly, the petiole hairy above and 

 beneath, rest of the abdomen much longer than the petiole, 

 clothed in the (J with fine pruinose pubescence ; all the tibiae 

 spinose, and the tarsi strongly so, coxae and trochanters 

 densely hairy. 



L 15-20 mm. 



