56 



Cameron, Hymenoptera Orientalia. 



angled ; the first recurrent nervure received in the basal 

 third of the cellule ; the second completely obliterated. 



The ocelli are larger than usual ; the second abdominal 

 segment unarmed beneath. On the mesonotum the two 

 parapsidal furrows are complete ; the last dorsal abdominal 

 segment rufous and punctured at the apex. 



In appearance this species resembles the American 

 genus Photopsis. It is apparently closely related to M. 

 pedunculata from Arabia and Egypt. 



A. Descriptions of species known in both sexes. 



The following species belongs to a group the species 

 of which, being so similarly coloured, are very difficult to 

 identify ; and I should not have ventured to describe it if 

 I had not got both sexes. 



MUTILLA ACIDALIA, Sp. 110V. 



2 . Black, thorax above ferruginous. Head as wide 

 as the thorax, coarsely punctured ; the head behind the 

 eyes developed a little less than the length of these latter; 

 covered with a short, sparse, white pubescence. Antennae 

 stout, covered with a white down; the basal joint reddish 

 at the apex. Thorax above, coarsely punctured, sparsely 

 covered with fuscous hairs ; the median segment with an 

 abrupt slope, coarsely punctured, covered with long white 

 hairs. Abdomen not much longer than the head and 

 thorax united ; black ; sparsely covered with long fuscous 

 hairs ; the hypopygium rather strongly longitudinally 

 striated ; on the second segment are two oval, on the 

 third and fourth segments two square marks of silvery 

 pubescence ; the basal ventral segment is ferruginous ; 

 the others obscure testaceous at their apices ; and marked 

 with long white hairs. Legs black, the tibia; and tarsi 

 with white hairs ; the tibial spines stout, fuscous ; the 

 calcaria pale. 



