MUTILLA. 303 



fuscous hair, and at the apex a fringe of golden hair ; and the pygidium is fringed with 

 long fulvous hair at the sides. 



Another example (?) from Bugaba has the thorax and abdomen without any black ; 

 the second abdominal segment without yellow maculae; the third and following 

 segments less strongly pilose and more distinctly punctured ; and the pygidium smooth 

 and shining, very sparsely pilose at the base, the apex also not being so strongly haired 

 as in the other varieties. 



As I can find no structural differences between all these forms, I have no doubt that 

 they all belong to one species. 



%/ 50. Mutilla approximata. 



Long. 5 millim. § . 



Hob. Panama, Bugaba, 800 to 1500 feet {Champion). 



Head much wider than the thorax, coarsely punctured, densely covered with golden 

 pubescence, and with some long blackish hairs ; the mandibles yellowish at the apex ; 

 the eyes large, reaching almost to the top of the head, which is well developed behind 

 them and obliquely narrowed. The scape of the antennae with a whitish pubescence ; 

 the flagellum with a pale pile, blackish towards the apex, the third joint distinctly 

 shorter than the fourth. Thorax elongate, narrowed at the base and apex, the sides 

 straight; coarsely punctured, above black, with a broad reddish band down the middle ; 

 the pleurae blackish above. The median segment with a gradually rounded slope ; the 

 tooth at its base stout, conical, yellowish. The first segment of the abdomen wider 

 than long, depressed at the base, the sides bluntly toothed ; with a few blackish hairs. 

 The second segment coarsely punctured, densely covered with short black hairs ; blackish 

 above, and with a large, round, red mark in the centre, the apex reddish, and with 

 sparse golden hair. The third, fourth, and fifth segments at the base are glabrous, 

 transversely striated ; the apices strongly punctured, and with a golden pubescence and 

 some long blackish hairs. The femora and tarsi are sparsely haired ; the tarsi densely 

 covered with pale fulvous hair. 



This species is allied to M. Mus, but may be known from it by the eyes reaching 

 to the top of the head (which is not the case with M. belus), the head, too, retreating 

 more sharply and more obliquely behind them, and without a curve ; and by the third 

 joint of the antenna? being shorter than the fourth. 



M. pantaleonce agrees with M. approximata in general form and coloration, and in 

 the eyes reaching to the top of the head ; but it has the third joint of the antenna? not 

 shorter than the fourth ; the head behind the eyes rounded (not straightly oblique) ; 

 and the third, fourth, and fifth segments not striated and punctured, and covered all 

 over with a dense golden pubescence. 



