Hymenoptera Orientalis. 131 



Thorax coarsely punctured ; the hairs long and black ; the 

 pleurae shining impunctate. Sides of thorax from above dis- 

 tinctly concave, irregular ; the apex hardly wider than the 

 base; the sides of median segment serrate. Median segment 

 with an abruptly oblique slope. Abdomen as long as the 

 head and thorax united, subpetiolate. Pygidium longtudi- 

 nally rugose and covered with long pale fulvous hairs. The 

 ventral segment fringed with golden fulvous hairs. The 

 coxae and apex of the femora are black ; the hairs on femora 

 are pale ; on tibiae and tarsi pale rufous ; the tibial spines 

 five in number, longish, and like the calcaria, pale rufous. 

 Basal half of mandibles and antennal tubercles rufo-piceous. 



Length, 8 mm. 



Allied to M. soror and intermedia, with which it agrees 

 in colouration ; but differs in the head, being densely covered 

 with a golden fulvous pubescence. Soror is further dis- 

 tinguished from it in the thorax, not being concave, but 

 straight ; and intermedia has the metapleurae rugose. 



MUTILLA ERYTHROCERA, Sp. 1WV. 

 Antennae, head, thorax and legs, for the greater part, 

 ferruginous; abdomen black, two large round macular on 

 the second segment, and the third and fourth segments 

 golden-fulvous. Head coarsely rugosely punctured, and 

 sparsely covered with long blackish hairs ; the hairs on the 

 clypeus pale fulvous ; antennal tubercles shining, impunctate. 

 Palpi testaceous ; eyes small, oval, in length about as long as 

 the third antennal joint,and situated before the lateral middle 

 line of the head, i.e., the space behind them is greater than 

 in front. Vertex roundly convex. The third antennal joint 

 not quite twice the length of the fourth, which is longer 

 than the second. Head wider than the thorax. Thorax 

 more coarsely punctured than the head ; the mesonotum 

 impunctate, the pro— and metapleurae rufose ; the sides of 

 mesothorax rough, very slightly concave ; eyes of median 



