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 2} lines.—Head and thorax black, the eyes 
emarginate ; the head and scape of the antennz thickly clothed 
with short ochraceous pubescence. Thorax clothed with a similar 
pubescence to that on the head, most sparmg onthe mesothorax 
and seutellum, which are roughly punctured, the latter produced 
and rounded behind; tegul 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. Muriuua Srycta. 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 ; sometimesa little golden pubescence on 
each side of the vertex ; the head and thorax rngose, the former 
wider than the latter. Thorax short, broad, and slightly nar- 
