MUTILLA. 275 



Black, the thorax red ; the underside of the four hinder femora, and the sides and 

 ventral surface of the abdomen, more or less brownish-red. The head coarsely punc- 

 tured, sparsely haired ; behind the eyes the hair is thicker, longer, and whiter. Eyes 

 of moderate size ; the head not much narrowed behind them, and well-developed 

 there. The scape of the antennae reddish beneath ; the third joint one half longer 

 than the fourth. The thorax quadrate, twice the length of the head, and narrower 

 than it ; the sides broadly contracted inwardly, crenulated ; coarsely punctured, above 

 sparsely covered with short white hair ; the pro- and mesopleurae smooth, impunctate ; 

 the apex of the median segment semiperpendicular, truncated, the sides rounded. 

 Abdomen not much wider than the thorax, about as long as the head and thorax 

 united ; the second segment coarsely punctured all over ; the basal segment with a 

 distinct striated neck, from which it is gradually dilated to the apex, where it becomes 

 confluent with the second. The apex of the first segment, the sides and apex of the 

 second broadly, two longitudinal lines on the latter reaching to the middle, and a broad 

 mark on the third, fourth, and fifth segments, and the apices of the ventral segments, 

 silvery-white ; the pygidium thickly clothed laterally with fulvous-golden hair. The 

 femora slightly, the tibia? and tarsi thickly, covered with stiff silvery-white hairs ; the 

 tibial spines thick, blackish, the tarsal spines fulvous ; the calcaria white. 



A specimen from Rincon in Guerrero (H. H. Smith), apparently belongs to the same 

 species ; it has the inward curve in the thorax not so deep, the femora entirely black, 

 the abdomen black, except the apices of the third, fourth, and fifth segments, which 

 are rufous above in the middle, the scape of the antennae only rufous at the apex, and 

 the tibial spines rufous. M. hogei closely resembles M. centralis, but differs from it in 

 having the thorax curved inwardly at the sides. 



\_ 



19. Mutilla porcata. (Tab. XIII. fig. 7, ? , var.) 



Nigra ; thorace ferrugineo ; abdomine albo-maculato. $ . 

 Long. 7-8 millim. 



Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet {Champion). 



Head distinctly wider than the thorax, coarsely punctured ; sparsely covered with 

 long black, on the oral region with shorter silvery, hair. Eyes large, reaching to the 

 top of the head, which is sharply and obliquely narrowed behind them. The scape 

 of the antennae sparsely covered with white hair, the flagellum with a dense silvery 

 pubescence ; the second joint and the antennal tubercle reddish ; the third joint one 

 half longer than the fourth. The thorax covered with long fuscous hair, very coarsely* 

 punctured, except the mesopleurae, which are smooth and impunctate ; the apex of the 

 pronotum rounded ; the sides of the mesothorax almost straight, rough ; the median 

 segment at the top broadly rounded, the lower part with a steep slope. The abdomen 

 wider than the thorax. The basal segment short, becoming gradually wider towards 



2 m 2 



