1898.] of the Coleoptera of South Africa. 371 



Tachys cautus. 



Flavous, shining ; antennae and legs lighter than the body ; 

 the ultimate joint of antennae is elongato-quadrate ; head quite 

 smooth, with the supra-ocular sulcus deep and not reaching quite as 

 far as the hind part of the eye ; prothorax one-third broader than 

 long, rounded laterally from apex to base, but broadest before the 

 median part, and hardly constricted near the base, the angles of 

 which are minute but sharp ; it is convex in the upper part with 

 narrow depressed outer margins, and the base is also depressed and 

 has "a not conspicuous puncture on each side of the median groove 

 at an equal distance from the centre and the outer angle, which 

 has no apparent puncture ; elytra elongato-ovate with the angles 

 sloping and rounded, one-third wider than the prothorax at its 

 widest part, convex, and having on each side five series of shallow 

 punctures not closely set and reaching from the base to a short dis- 

 tance from the apex ; there is also a very distinct stria ending in a 

 conspicuous setiferous puncture on each side at the apex, and the 

 two dorsal punctures are not very conspicuous owing perhaps to the 

 sheen qf the pale background ; there is no supra-marginal series 

 of punctures. Length 2-J- mm. ; width 1 mm. 



The first example of this species was captured by me while search- 

 ing for termitophilous insects in a white ant's hill, and demolishing it 

 for the purpose. A second example, however, was captured in the 

 open in the same way as other Tachys. The shape of the terminal 

 joint of the antennae, and also of the three preceding ones, which 

 have an elongate moniliform shape, differs from that of the South 

 African species, where the ultimate joint is elongate and acuminate, 

 and the others elongate. 



Hob. Cape Colony (Stellenbosch, Cape Town). 



This species has no South African ally. 



Gen. SCOTODIPNUS, 

 Catal., p. 600. 



S. capensis is to be included in the genus Anillus, Duv., and 

 Bedel refers the species to his sub-genus Pseudanillus. 



Gen. ATEOTUS, 

 Catal., p. 582. 



Having been able to examine male examples of A. forcijjattts , I 

 find that the genus must be included in the Licinini, and not in 

 the Pterostichini. 



