HYMENOPTERA. 47 



spot at its apical margin, from which a stripe of silvery pubes- 

 cence runs to the apex of the abdomen; the extreme lateral 

 margins have a patch of silvery pubescence, and the margins of 

 the segments beneath are ciliated with silvery hairs, the second 

 segment being ruggedly punctured. 



Hab. Brazil (Santarem). (H. W. Bates.) 



228. MUTILLA SIMPLEX. B.M. 



Male. Length 2f lines. — Head and thorax black, the eyes 

 emarginate ; the head and scape of the antenna? thickly clothed 

 with short ochraceous pubescence. Thorax clothed with a similar 

 pubescence to that on the head, most sparing on the mesothorax 

 and scutellura, which are roughly punctured, the latter produced 

 and rounded behind; tegulse very large, their outer margins pale 

 testaceous ; the metathorax densely clothed with silvery pubes- 

 cence ; wings fusco-hyaline, their apical margins clouded. Ab- 

 domen ferruginous, strongly punctured, the apical margin of the 

 second segment and the basal segment entirely covered with sil- 

 very pubescence ; the three apical segments have a longitudinal 

 central carina, and the two apical ones are fuscous. 



Hab. Brazil (Santarem). (H. W. Bates.) 



229. MuTiLLA Stygia. B.M. 



Female. Length 7 lines. — Black, the head narrower than the 

 thorax, both roughly sculptured. Thorax : the anterior angles 

 acute, armed on each side, about the middle, with a large angular 

 tooth, behind which it is suddenly narrowed and rounded poste- 

 riorly ; the pubescence long, black and thinly scattered, that on 

 the legs black ; the basal segment of the abdomen has two spots 

 of silvery pubescence on its apical margin ; the second segment 

 has on each side a large red macula, and the four apical segments 

 on each side have a spot of pale golden pubescence, forming a 

 subinterrupted line. 



Hab. Brazil (Santarem). (H. W. Bates.) 



Closely allied to M. perspicularis, but differing in having the 

 head and thorax entirely black, and the spots on the abdomen 

 smaller. 



230. MUTILLA valida. B.M. 



Female. Length 4^-5 lines. — Black, head large, quadrate, 

 posterior angles acute ; sometimes a little golden pubescence on 

 each side of the vertex ; the head and thorax rugose, the former 

 wider than the latter. Thorax short, broad, and slightly nar- 



