MUTILLA. 263 



segment is black, the base transversely striated, the apex finely punctured and fringed 

 with fulvous hair ; the fourth segment is black at the base ; the other segments are 

 rufous, fringed with golden pubescence, and bearing long black hairs ; the rest of the 

 abdomen bears long fuscous hair, the hair on the base being fuscous, not white. The 

 thorax has the appearance of being narrower and shorter, and the posterior spines are 

 certainly longer and more curved. 



Another example (also from Chiriqui) has the base of the second segment smooth, 

 glabrous, and impunctate ; the apex of the second segment reddish ; the central yellow 

 band (which has the yellow suffused with red) separated into two parts by a black line, 

 narrow at the base, dilated in the middle ; the fourth abdominal segment smooth, 

 glabrous, and impunctate; the head broadly black in the middle in front; and the 

 hinder tibiae infuscated towards the apex. 



ii. The thorax not incised in the middle. (Species 2-40.) 



a. Head and thorax red. (Species 2-10.) 



* Abdomen reddish. (Species 2.) 



2. Mutilla cyra. 



Ferruginea ; capite supra aureo-velutino ; abdomine maculis 8 aureis, segmento 2° fascia marginali aurea. $ . 

 Long. 10 millim. 



Hao. Mexico, Chilpancingo in Guerrero 4600 feet (H. H. Smith). 



Head coarsely punctured, covered with silvery- white, and on the vertex with some 

 longer black, hair. The eyes of moderate size, not reaching to the top of the head, 

 which is hardly narrowed behind them. The clypeus indistinctly toothed at the sides. 

 Mandibles black, with a reddish stripe at the base. The scape of the antennae with 

 depressed white hairs ; the flagellum narrowed at the base, covered with a white pile ; 

 the third joint one half longer than the fourth ; the three basal joints ferruginous, the 

 others black. The thorax narrower than the head, coarsely punctured, except on the 

 mesopleurae. The pronotum with a distinct neck ; the sides roundly narrowed from 

 the apex to the base, the apex arcuate. The sides of the mesothorax very slightly 

 concave, . rugged. The median segment with a semioblique slope, more coarsely 

 punctured than the mesonotum ; the sides with some stout teeth. There is a thick 

 patch of white pubescence on the sides of the pronotum ; the mesonotum bears long 

 black hairs, this being also the case with the median segment, but the hairs there are 

 longer and blacker. The basal segment of the abdomen is short, becoming gradually 

 wider towards the apex, where it is confluent with the second ; in the centre it is 

 shining and impunctate, punctured round the edges, and above bears a ring of white 

 silvery, hair. The second segment is coriaceous ; the apex and sides are fringed with 

 silvery-white pubescence ; and there are two elongated maculae at the base. There is 



