A Monograph of (he Formicidae of South Africa. 517 



abdomen. Scapes, tibiae, tarsi and abdomen brown. Head reddish- 

 brown, the rest brownish red-yellow. 



" Great Namaland, Arasab River, near Kubub (Schultze) ; on the 

 bark and in the heart of an Acacia horrida." 



V 



C. MONTICOLA, U. Sp. 



^ . 3"8-4 mm. Ferruginous or reddish raw-umber, the posterior 

 half of the head above, the dorsum of the thorax partially and the 

 apical half of the abdomen darker, or more mahogany brown. Fairly 

 smooth and shining all over, the head sparsely and finely punctured, 

 longitudinally and fairly closely striate at the sides in front of the 

 eyes. The meso- and epipleura longitudinally rugoso-sti'iate, and 



Fig. 40b. — C. monticola, n. sp. 



partially reticulate-punctate between the striae, the dorsum of the 

 epinotum with a few longitudinal striae at the base. Clothed all over 

 with a fairly abundant, long, silky and whitish pubescence, obliquely 

 exserted ; on the head this pubescence is shorter, decumbent and less 

 plentiful. This pubescence, which is only too easily rubbed off, is 

 very striking, and renders this insect tolerably distinct from all our 

 other species of the genus. 



Head quadrate, between one-sixth and one-seventh wider than long, 

 the sides distinctly convex, the posterior margin straight. The median 

 area of the clypeus feebly convex, a little longer than wide. The 

 scapes extend beyond the hind margin of the head by about as much 

 as their apical width. Mandibles longitudinally striate and shining. 

 Eyes placed at about the middle of the sides. Posterior half of the 

 lateral margins of the pronotal disc submarginate. Mesonotum 

 feebly convex, as long as wide, without a clearly defined posterior 

 declivity. Meso-epinotal suture shallow. Dorsum of epinotum feebly 



