. Notes on South African Mutillidae, 343 



with a ventral carina incised in the centre, second segment sub- 

 cicatricose punctate without any raised intervals, the other 

 segments closely punctate, the dorsal surface and the sides 

 especially are beset with long, white erect hairs, the second 

 segment has underneath three small, sharp tubercles on the apical 

 edge, one median, the other two lateral, and the ventral part of the 

 segments is fringed with greyish long hairs. 



Length 8 mm. ; expanse of wings 13 mm. 



Hab. Southern Rhodesia (Bulawayo), G. Arnold. 



Belongs to the group of J/. zoc, Per., I/", concinna, Per., and 

 M. spec ul air ix, Gerst., but is at once differentiated by the greatly 

 arcuate hind part of the head, which is straight in the above-named 

 species, and the three tubercles on the border of the ventral part of 

 the second abdominal segment. 



"'D 



MUTILLA NAI'S, Per. 

 Ann. S. Afric. Mus. i. 1898, p. 129. 



$ . Black, with the pronotum and mesonotum red, abdomen 

 with a large, quadrate silky white patch extending nearly from the 

 sides to some distance from the centre on the second segment, and 

 a broad apical band of the same pubescence widely interrupted in 

 the centre on the third and fourth segments, ultimate segment 

 moderately fimbriate with greyish hairs. Head transverse, not 

 very wide on the vertex, hardly arcuate behind and with the 

 posterior angles slightly rounded, eyes large, lateral, deeply 

 emarginate, space in front of the eyes with a patch of silky hairs, 

 maxillae long, simple ; antennae with the basal joint long, acutely 

 nodose inwardly at apex, third joint of equal length with the fourth. 

 Pronotum somewhat rounded in front, mesonotum convex, carinulate 

 longitudinally in addition to the four longitudinal grooves, the 

 intervals foveolate, scutellum almost orbicular, fringed with a 

 flavescent pubescence, metanotum sub-parallel laterally, then 

 conspicuously rounded behind, broadly reticulate ; abdomen sessile, 

 first segment shorter than the apical width, foveolate punctate 

 above and provided underneath with a short, high carina truncate 

 and sub-dentate at apex, second segment sparsely punctate but 

 with the median discoidal part smooth, the other segments finely 

 punctate ; legs clothed with whitish bristles, hind tibiae with two 

 apical spines on the upper side, spurs long, white. 



Caught in copula by Mr. G. Arnold, of the Rhodesia Museum. 



Length 14-15 mm. ; expanse of wings 23-24 mm. 



