1896.] of the Coleoptera of South Africa. 587 



or two faint juxta-sutural striae, and three equidistant punctures 

 on the second one. 



Differs mainly from either Pogomts and Trechua in the shape of 

 the joints of the antennae and that of the prothorax ; the stria3 on 

 the elytra are neither distinct nor punctured. 



EXTROMUS PUSILLUS. 



Antennae, labrum, mandibles, palpi, legs and prothorax pale 

 yellow ; head black ; elytra pale yellow, with a broad, sutural, 

 elongato-ovate dark patch extending from near the base to about 

 two-thirds of the length, and in width to about one-half of each 

 elytron, and also with an apical, narrow, subtransverse patch of the 

 same colour following the contour of the posterior margin ; head 

 quite smooth, slightly impressed on each side above the clypeus ; 

 prothorax truncate in front and behind, a little broader in the 

 anterior than in the posterior part but with the posterior angle 

 nearly blunt, narrowly grooved longitudinally on the disk, and 

 faintly punctulate along the base ; elytra broader at the base than 

 the prothorax at its widest part, elongato-ovate, with two nearly 

 obliterate juxta-sutural striae, and with three equidistant punctures 

 contiguous with the second stria ; apical part of the elytra as well 

 as the whole of the outer margin very briefly setulose; and the 

 posterior marginal seta very long ; under side piceous. Length 

 2f mm. ; width 1 mm. 



Hab. Zambezia (Salisbury). 



Gen. TEECHUS, Clairville, 



Entomol. Helvet., ii., 1806, p. 22. 



Emargination of the mentum narrow and with a median, short 

 bifid tooth ; inner part of lobes straight, outer part curving out, 

 apical part ending in a sharp tooth ; ligula broad, in the shape of 

 an inverted triangle, the apical part of which is truncate and bears 

 two long setae, there are also four lateral ones on each side ; para- 

 glossae very slender, twice as long as the ligula and curving inwards 

 above it ; maxillae long, subfalcate with nine distant stiff bristles ; 

 last joint of the labial palpi long, slender, acute at tip and not 

 narrower at the base than the apical part of the penultimate one, 

 terminal joint of the labial very sharp and narrower at the base than 

 the apical part of the penultimate one ; antennae long, subfiliform^ 

 basal joint moderately thick, glabrous, the second one smaller than 

 the third and glabrous at the base ; head with a deep, crescent 

 shape longitudinal impression on each side ; eyes large ; mandibles 

 long ; labrum short, emarginate ; prothorax more or less subcordiform 

 with a median longitudinal groove and a supra-marginal lateral and 



