824 Transactions South African Philosophical Society, [vol. xii. 



rugoso-punctate and clothed with veiy long, villose hairs ; elytra 

 elongate, slightly broader than the prothorax, sinuate laterally below 

 the shoulders, but not much attenuate thence towards the apex, 

 they are deeply and irregularly punctured, have two costules on each 

 side, and from each scattered puncture springs a long appressed 

 flavescent hair ; pygidium, under side and legs with a flavescent 

 pubescence. 



Female unknown. 



Length 6^ mm. ; width 3 mm. 



Hah. Cape Colony (Worcester). 



IDUTYWA, n. gen. 

 Buccal organs of Platycheliis, from which it differs in the shape of 

 the claws, which are longer, especially the anterior ones, not so 

 deeply cleft, and the posterior ones are single and simple ; the 

 clypeus is straight at apex with the angles slightly rounded, and the 

 prothorax and elytra are more convex ; the fore tibiae have two 

 oblique outer teeth, and the posterior ones no apical spur in the 

 male. 



Key to the Species. 



Prothorax with a median band of ashy grey hairs and a border of the 

 same all round, elytra with three bands of appressed grey hairs on each 

 side collaris. 



Prothorax and elytra with black hairs, the latter very dark brown . . vidua. 



Idutywa collakis, Burni., 

 Monochelns collaris, Handb. d. Entomol., iv., 1, p. 156. 

 Male : Black, prothorax with a broad border of ashy grey, appressed, 

 sub-squamose hairs and a broad patch of the same in the anterior 

 part of the disk w'hence it is continued in the longitudinal median 

 groove which is deep, and in addition to these appressed hairs is 

 clothed with a blackish erect pubescence ; the head is also pubescent, 

 but the pubescence is shorter and sub-flavescent, it is very granulose 

 all over, and the clypeus is short, straight at apex with the angles 

 slightly rounded, yet distinct ; the palpi and antennae, with the 

 exception of the club, are reddish, this club however is black ; the 

 prothorax is plainly convex and very rugose ; scutellum short, 

 clothed with squamose greyish hairs ; elytra sinuate laterally, 

 but attenuate towards the apex, not costulate on each side, but 

 having there two longitudinal depressions or broad stria3, one, the 

 longer, along the suture, the other and much shorter one, on the 



