586 Descriptive Catalogue ' [1896. 



' PoGONUS APiCALis, Erichs., 

 Wiegm. Arch., 1843, i., p. 219. 



Much smaller but closely allied to the preceding species, and with 

 the head, antennae, and legs coloured alike ; the prothorax is more 

 deeply impressed laterally in the basal part, and the supra-marginal 

 ridge which limits the impression conspicuous while it is hardly 

 noticeable in P. lamiwus ; the elytra are light testaceous with a faint 

 greenish tinge in the anterior and lateral parts ; the striae are 

 similar but the seventh one is well defined, and the eighth one punc- 

 tulate ; under side light brown. Length 4|- mm. ; width 1^ mm. 



Hah. Damaraland (Kuisip Eiver). Was originally described 

 from Angola. 



POGONUS SENEGALENSIS, Dej., 



Spec. Col., v., p. 703. 

 P. caffer, Bohem., Insect. Caffr., i., 1848, p. 164. 



Totally dark metallic green, with the antennae, palpi, and legs 

 fiavescent, the apical part of the elytra with a faint fiavescent tinge ; 

 base of the prothorax closely punctured, the lateral depression deep, 

 and the posterior supra-marginal ridge very developed ; ehi;ra 

 elongate, striate in the same manner as the two preceding species, 

 but the striae are better defined at the apex, the seventh one very 

 narrow but punctulate, and the eighth one with elongated punctui'es; 

 under side piceous. Length 5 mm. ; width If mm. 



Hah. Eastern and Southern Caffraria, teste Bohem. ; occurs also 

 in Senegambia. 



Gen. EXTEOMUS. 

 Labrum long, emarginate ; palpi of PogoJius, but with the ultimate 

 one more acute at the tip ; mentum narrowly emarginate and with 

 a short median tooth ; ligula apparently aculeate at the tip and 

 plurisetose * ; paraglossae broad and slightly shorter than the ligula ; 

 head without any lateral sinuate impression, bisetose above the 

 eyes but without any conspicuous puncture as in Trechus ; man- 

 dibles long, arcuate ; first joint of antennge long, the two following 

 short and slender, the others subm.oniliform and gradually thickened, 

 the ninth and tenth a little broader than the others, and the last 

 one equally broad, but short and ovate ; prothorax broader in the 

 anterior than in the posterior part with the outer sides not sinuate, 

 and the posterior angle not sharp ; elytra elongato-ovate with one 



* I am not quite certain that the shape of the ligula is exactly true to niy 

 description, as I have not been at liberty to dissect the only example I had at my 

 disposal ; I used a high magnifying power to try and ascertain the contour of both 

 ligula and paraglossje. 



