A Monograph of the Formicidae of South Africa. 133 



■species by the very globose thorax, which, with the petiole, is 

 -densely clothed with long, golden, erect hairs, and by the shape of 

 "the abdomen, in which the apical segments are much wider than 

 the lst-3rd, and by the dense dark golden fimbria of the last two 

 -segments. 



(E.M., G.A. colls.) 



Sub-Genus ALAOPONE, Emery. 



Ann. Mus. Stor. Nat. Gen., vol. 16, p. 274, 1881. Zool. Jahrb. 



Syst., vol. 8, p. 702, 1895. 



There are but three species of this sub-genus recorded from the 

 iSouth African region, all known only in the male sex. 



D. (Sub-G. Alaopone) attenatus, Shuckard. 



" $ . 22 mm. Alar expanse 31*5 mm. 



Pale reddish, testaceous, opaque, sub-pubescent, slender; head 

 black, except the mandibles, which, as well as the scape of the 

 antennae, are pitchy, the latter barely one-fifth the length of the 

 organ, which is filiform and elongate ; ocelli posed in a triangle at 

 the vertex, moderately large, with about the space of the diameter 

 of one ocellus between the posterior and the anterior, in front of 

 which the face (which is convex) is sulcated ; mandibles broad and 

 very slightly curved, their inner edge acute, with an obtuse angula- 

 tion at the base within. Thorax gibbous in front and at the 

 scutellum, the latter transverse with a longitudinal impression in 

 the centre ; metathorax produced slightly and rounded posteriorly ; 

 wings obscure, their nervures reddish brown, the cubital slightly 

 waved, the recurrent straight and inserted at less than two-thirds 

 the length of the 1st marginal cell; legs castaneous, the femora 

 ■elongate ovate, their outline rounded both above and below. 

 Abdomen obscure, the petiole quadrate, gibbous, the ventral portion 

 very slightly obtusely portioned, the remaining segments transverse, 

 the sexual organ protruding at the apex of the terminal segment and 

 fringed. Gambia?" 



I have not met with this species in S. Ehodesia. It has been 

 recorded from Capetown (teste Emery), German S.W. Africa, and 

 Bechuanaland. (Schultze.) 



Var. acuminata, Emery. 

 Ann. Soc. Ent. Belg., vol. 43, p. 462, $ , 1899. 

 " $ . This differs from that which I consider as the type, by the 

 form of the stipes in the genital armature. The two pieces of the 



