and Asiatic Species of Hapalocluus. 199 



the abdomen partly red ; clothed with fine pubescence inter- 

 mixed with lonoer^ semi-erect, pallid hairs. Head about as 

 wide as the prothorax, rather sparsely puuctulate, sulcata 

 down the middle auteriorlyj depressed between the eyes, and 

 deeply, transversely excavate ou each side posteriorly, the 

 two excavations narrowly separated along the median line ; 

 antennae moderately long, not very slender, joints 3-9 

 flattened, parallel-sided, oblong, 10 dilated, flattened, some- 

 what oval, much wider than 9, bluntly rounded at tip. 

 Prothorax transverse, convex, rounded at the sides, closely 

 punctnlate. Elytra widened and rather convex posteriorly, 

 conjointly rounded at the apex, deeply punctate. Anterior 

 tibiae widened, sinuate, obliquely compressed, and with a 

 narrow diaphanous space on their inner edge, before the tip ; 

 anterior tarsal joints 1 and 2 slightly thickened, long, 2 

 extending over the base of 3 ; intermediate femora hollowed 

 towards the apex and deeply excavate near the base beneath ; 

 intermediate tibiae (PI. VIII. fig. 17) curved, broad, convex 

 above, arcuately dilated at the middle externally and sinuate 

 thence to the tip, deeply excavate at the middle and apex 

 beneath, and furnished with a dentiform pencil of matted 

 pallid hairs at the inner angle, the apex itself toothed beneath. 

 ? . Antennae a little more slender ; head densely punc- 

 tate, simply hollowed down the middle posteriorly and 

 transversely depressed anteriorly ; legs wholly metallic. 

 Length 4|-5i, breadth 2-2 jJfy mm. ( c? ? .) 

 Bab. E.Africa, Mwengwa [1. i. 1914] and Kafue River, 

 Namwala [iii. 1913], both in N. or N.W. Rhodesia (H. C. 

 Dollman). 



Two pairs, found on grass. This species may be readily 

 identified by the dilated apical joint of the antennae in the 

 two sexes, and the deeply excavate head and the very 

 peculiarly-formed intermediate tibiae in the cJ . H. cav'ifrons, 

 Pic (1913), from the Congo, seems to have the head excavate 

 as in H. clavicornis, and antenna dilated somewhat as in 

 H. platycerus (No. 35). 



23. Ilapnlochrus dihiticornis, sp. n. 



(^ . Moderately elongate, clothed with whitish pubescence, 

 the elytra with short semi-erect hairs; bluish-green, the 

 labrum, palpi, joints 1-5 of the antennae, anterior and inter- 

 mediate femora and tibiae, and posterior tibiae (except towards 

 the apex), testaceous, the rest of the anteniue and legs 

 black or metallic. Head short, broad, densely puuctulate, 

 opaque ; antenme long, very broadly dilated, joints 4-9 



