618 Annals of the South African Museum. 



the body, and not very apparent even on the legs and antennae. 

 The pilosity is scanty, consisting as a rule of a few marginal bristly 

 hairs on the abdominal segments, on the anterior margin of the clypeus, 

 and a few isolated hairs on the pronotum, brow of the declivity and 

 the upper edge of the scale. 



^ media. This differs from the Qj. in having the head more elongate, 

 widest at, or a little behind the middle, very little narrower in front 

 than behind, often parallel-sided. The sculpture, especially of the 

 head is usually finer, and if spots of pale colour are present on the 

 abdomen of the Qj., these are usually indistinct or less clearly defined 

 in the § media. The scale is usually thicker than in the Qj.. The 

 antennae are also proportionately longer. 



Q minor. Antennae relatively much longer than in the Qj., and 

 a little longer than in the § media. The head is nearly always wider 

 in front than behind, that is, parallel-sided in front of the eyes and 

 gradually narrowed behind the same to the posterior margin. The 

 thorax is more compressed behind and the scale of the petiole is 

 thicker, and more convex in front. The abdominal maculae are 

 usually indistinct. Metanotum entirely obsolete in most cases. 



9- In this sex the shape of the head resembles that of the ^ media, 

 being usually longer than wide, very little narrower in front than 

 behind and widest at the middle or a little behind it. The sculpture 

 is similar to that of the § media. The mesonotum is fairly flat 

 above, convex in front from side to side. The two faces of the 

 epinotum usually fairly clearly defined. Scale like that of the Qj. 

 but somewhat thinner. Abdominal maculae as clearly defined as 

 in the Qj.. 



cf. The anterior portion of the head, in front of the eyes, usually 

 parallel-sided, the posterior portion, including the eyes, more or less 

 trapezoidal or semi-circular, narrowing gradually backwards to the 

 narrow posterior margin, which is considerably narrower than the 

 clypeal margin. Thorax like that of the 9> but the epinotum is 

 much lower, the dorsum and declivity less clearly defined. Scale of 

 petiole thicker and lower, the dorsal edge usually emarginate and 

 thick. Abdomen laceolate-ovate. Sculpture and pilosity as in the 9« 



C. maculatus is an extraordinarily variable species, widely distributed 

 over the warmer regions of the globe, and comprising about 100 

 different races and varieties. In our region alone it is represented 

 by about 30 different forms. In view of the probability that there 

 are many intermediate forms, at present unknown, but which will 

 be discovered in the future, it does not seem wise to burden with 

 varietal mames all the different manifestations of variability which 



