HYMENOPTERA, 27 
the thorax black; the entire insect has a thinly scattered gri- 
seous pubescence, most dense on the legs and on the margins of 
the abdominal segments beneath, the tarsi rufo-testaceous ; the 
third and two following segments have a patch of silvery pubes- 
cence in the centre above, and the apical segment is obscurely 
red and finely longitudinally aciculate. 
Hab. Western Australia (Perth). 
150. MutTILua INSTABILIS. B.M. 
Female. Length 3 lines.—Black, head rugose, the tubercles 
at the base of the antennz and the mandibles ferruginous, the 
latter sometimes obscurely so. Thorax: sometimes the disk is 
ferruginous, but more frequently black ; thickly covered with 
deep elongate punctures, those on the posterior portion of the 
disk very large and subconfluent ; the tarsi ferrugmous. Abdo- 
men densely covered with large deep longitudinal punctures ; 
the second segment above ferruginous, the margins black, the 
apical segment aciculate above. 
Had. Australia (King George’s Sound ; Swan River). 
151. MuriLya morosa. B.M. 
Mutilla morosa, Westw. Arc. Ent. ii. 19. 12. t. 54.12. 
Hab. Australia (Swan River). 
152. MuTILLA STRIGOSA. B.M. 
Female. Length 44 lines.—Black, the head rugose and having 
a thinly scattered glittering pale pubescence, interspersed with a 
few long black hairs ; the flagellum beneath and the mandibles 
ferruginous. Thorax ferruginous, its anterior margin black ; the 
disk deeply longitudinally strigose; the legs black, the knees 
and base of the tarsi rufo-testaceous.. Abdomen shining, longi- 
tudinally rugose, the apical margins of the segments fringed with 
glittermg pale golden pubescence ; the apical segment obscurely 
ferruginous and longitudinally aciculate. 
Hab. Australia (Swan River). 
153. MurTILLA LUTARIA. B.M. 
Female. Length 5 lines.—Rufo-testaceous, head and thorax 
coarsely punctured, the abdomen more finely so ; the entire insect 
clothed above with golden pubescence ; the scape of the antenne, 
eyes and mandibles black; the femora fuscous; the tarsi and 
the tibize externally very spinose, the spines black ; the extreme 
c2 
