736 Annals of the South African Museum. 



(2) 3. Pilosity on the abdomen ochreous or straw-yellow 



var. flavojnlosus, Emery. 

 (1) 4. Head and thorax more or less dark reddish. 



(8) 5. Smaller species, 2J., 12-13 mm. long. 



(7) 6. Pilosity on the abdomen short, sparse, evenly distributed all over, not 

 hiding the colour and sculpture of the integument 



race brevisetosus, Forel. 

 (6) 7. Pilosity on the abdomen long and abundant, but the base of the 1st, and 

 some large median spots on the 1st, 2nd and 3rd segments glabrous 



race detritus, Emery. 



(5) 8. Larger species, 21, 15-17 mm. long. 



(10) 9. Pilosity of abdomen reddish ochreous (but not so dark as in the type of the 



species) ; 2nd and 3rd segments with a glabrous median spot ; shoulders 



of pronotum angular .... var. detritoides, Forel.* 



(9) 10. Pilosity of abdomen straw-yellow, no glabrous spots ; shoulders of 



pronotum dentate .... race storeatus, Forel. 



C. fulvopilosus, De Geer. 

 Mem. Hist. Insect, 7, p. 613, 1778. 



21,15-16 mm. Black, dull, densely reticulate-punctate or granulate, 

 more closely and finely so on the abdomen than elsewhere, the legs 

 superficially reticulate, feebly shining and with shallow pubescent 

 punctures. On the cheeks and frons there is a fine and sparse 

 puncturation superimposed. Pubescence exceedingly short and fine, 

 occurring only on the legs and antennae. Mesonotum, epinotum and 

 petiole with a few thick, erect and pale yellowish hairs. Abdomen 

 with a very dense and almost decumbent pilosity, composed of thick 

 blunt hairs of a fulvous or foxy-red colour (paler at their bases), the 

 2nd and 3rd segments sometimes with an indistinct median patch 

 devoid of hairs. 



Head very large (4-4-3 mm. wide by 5-5*2 mm. long), including the 

 closed mandibles more or less triangular, excluding them about as 

 long as wide, twice as wide at its widest (just behind the eyes) as across 

 the anterior margin, the sides convex, the posterior margin feebly 

 concave, the posterior angles widely rounded. Mandibles dull, finely, 

 shallowly and fairly closely punctured, armed with 6 or 7 teeth. 

 Median area of clypeus subquadrate, very little wider in front than 

 behind, feebly subcarinate, the anterior margin straight, hardly 

 produced into a lobe. Frontal carinae not greatly divergent, longer 



* Detritoides is sometimes black on the head and thorax, but it may be dis- 

 tinguished in that case from the type of fulvopilosus by the larger head of the 2J. , 

 and the paler or reddish ochreous colour of the abdominal pilosity. 



