418 Annals of the South African Museum. 



GEN. HENICUS, Gray. 

 Mag. Nat. Hist. (2), i, 1837, p. 144. 



HENICUS PROMONTORII, n. sp. 



<$ . Allied to H. pattersoni, Stoll, but light testaceous, with the 

 abdominal segments somewhat fuscous on the upper side. It is, how- 

 ever, in the shape of certain parts of the head that the differences are 

 noticeable. The labrum is longer, or a little longer but more diagonally 

 truncate laterally at apex, and smooth instead of being striated on 

 each side of the juxta-apical part ; the mandibles are more slender and 

 longer in proportion, the spine at the anterior part of the genae is 

 sharp but short, being only about one-fourth of the length of those of 

 pattersoni ; the posterior margin of the genae is produced into a 

 rounded lobe instead of a triangular sharp projection, and the head 

 and body proportion is only half that of pattersoni. 



$ . The female, which, unlike that of Mimnermus, has not quite 

 the general appearance of Onosandrus, is much more slender than that 

 of H. pattersoni, and much more lightly coloured. 



This species is not very rare in the Cape Peninsula and its immediate 

 neighbourhood, whereas I have seen hitherto a pair only of H. pattersoni 

 (the head of the male of which Stoll has very truly delineated) from 

 the Swellendam District. 



Length of body 20-21 mm. ; of mandibles ( $ ) 9-12 mm. ; of 

 ovipositor 20 mm. ; length of hind femora and tibiae 19-20 mm., 

 respectively. 



Cape Province (Cape Peninsula). 6 $ $ ; 4 $ ? . 



BOCHUS, n. gen. 



Head slightly broader than the pronotum ; vertex of the normal 

 form, fastigium very distinct ; labrum very broad at the base, strongly 

 constructed laterally, and broadly spatuliform at apex, covering the 

 mandibles, which are short but very massive, and very strongly 

 dentate ; genae simple ; pronotum cylindrical with the sides deflexed, 

 but a little more quadrate than in Nasidius ; sternal and coxal spines 

 of the normal shape and size ; supra-anal lamina ( g ) sub-obtusely 

 triangular ; cerci sub-cylindrical, short, sub-genital lamina arcuate, 

 slightly acuminate in the centre, styles short, lanceolate, (?) ovipositor 

 very short ; legs robust, moderately long, all femora plainly com- 

 pressed, the posterior ones hardly dilated at the base, being there very 

 little wider than at apex, and having a deep longitudinal median sulcus 



