346 HYMENOPTERA ACULEATA. 



clothed with greyish white hairs in front of the insertion of 

 the forewings, with black hairs behind, and with a tuft of 

 white hairs just behind the insertion of the hind wings, 

 scutellum with a spine on each side, mesopleurse with a 

 patch of white hairs; wings smoky, the centres of some of 

 the cells darker ; abdomen shining, very finely punctured, 

 first segment clothed with white hairs at the base, the 

 white hairs in the $ extending almost to the apex, in the 

 ? there is an apical patch of white hairs on each side, the 

 remaining segments clothed with very short black hairs, 

 second, third, and fourth segments in both sexes and fifth also 

 in the $ with a lateral transverse spot of white pubescence 

 at the apex, seventh in the $ deeply emarginate ; beneath 

 clothed with short black hairs, sclerites of the seventh in 

 the $ , sinuate on their inner margins near the apex, which 

 is truncate, eighth subtriangular narrowly truncate at the 

 apex, with two rather strong apical setae, stipites of the 

 armature with the sides slightly convex ; legs clothed with 

 black hairs, a spot on each tibia at the base, the inter- 

 mediate femora beneath, and the intermediate and posterior 

 tarsi in front in the $ , with white hairs, posterior metatarsi 

 straight. 



L. 13 mm. 



Not common, associates with Anthajjliora retusa. Chob- 

 ham. Hampstead Heath; {Smith). Colchester; {liar- 

 wood). Gloucestershire; {Perkins). These are the only 

 localities I have received, but it is probably often confused 

 with the next species which is far less rare. 



M, armata, Pan:, {punctata, Kirb., Curt.). — Very like 

 lurtuob-a but differing in the following particulars, the 

 pale pubescence of the head and thorax is of a browner 

 tint, the face is entirely clothed with ochreous hairs, abdomen 

 rather more coarsely punctured, the second segment with 

 its sides clothed with long pale hairs like those of the first, 

 third and fourth in both sexes and the fifth in the cj, with 

 small punctiform lateral spots, seventh in the c? less deeply 



