218 Descriptive Catalogue [1396. 



side very shining ; claws of tarsi with five long teeth. Length 

 14 mm. : width 5 mm. 



Eah. Natal (D'Urban, Frere, Escom^t). 



Hystkichopus becticollis. 



Black, shining ; antennae and palpi black, with the basal joint and 

 the apical part of the palpi reddish brown ; head smooth, slightly 

 punctulate along the eyes ; prothorax nearly twice longer than broad, 

 very slightly narrower at the base than at the apex, with the outer 

 sides straight, visibly plicate transversely and punctured in the basal 

 part ; elytra elongate, broader than the prothorax at the base, a little 

 broader from the median part to the apex than in the anterior part ; 

 black subopaque, punctato-striate, with the intervals moderately 

 convex, the third one with four punctures. 



Allied to H. iwcBclator, but easily distinguished by the nearly 

 parallel shape of the prothorax, which resembles much that cf 

 Leptosarcus. Length 16 mm. ; width 6 mm. 



Hah. Zambezia (Salisbury, Mazoe). 



Sub-Gen. ASPASTUS. 

 Hysteichopus ateatus, Chaud., 

 Bull. Mosc, 1850, vol. ii., p. 368. 

 Ctenonmos rotunclicollis, Chaud., I.e., p. 369. 



Black, moderately shining ; apical joints of the palpi and antennae 

 with the exception of the four basal joints rufescent ; head smooth ; 

 prothorax subcordiform in the male, more rounded and broader in the 

 female ; elytra subopaque, deeply striato-punctate, with the intervals 

 slightly carinate in the male, plane in the female, the third interval 

 with four punctures ; under side shining ; tarsi moderately long, claws 

 with six moderately long teeth on each side. Length 14-15 mm. ; 

 width 5-6 mm. 



Hab. Natal (D'Urban, Escourt, Frere), Transvaal (Pretoria, 

 Potchefstroom, Middelburg). 



Gen. LEPTOSAECUS. 



Mentum broad, similar to that of Ci/iiiiiidoidea, lobes long, acute, 

 nearly straight internally, median tooth narrow, acute, triangular, 

 ligula not filling the base of the notch of the mentum, long, with 

 three hairs at the tip, paraglossae much longer than the ligula, 

 broadening towards the apex, and obovate at the tip ; mandibles 

 moderately long, the left one with a median inner tooth ; ultimate 

 joints of the maxillary and labial palpi subcylindrical and truncate 

 at the tip ; labrum moderately long, broadly and deeply notched ; 



