610 Addenda. 



bifid ; last joint of palpi subcylindrical ; antennae subfiliform, mode- 

 rately short, not reaching quite the base of the prothorax ; prothorax 

 rounded in the posterior angles ; elytra with a basal border and 

 some distinct dorsal punctures on the third interval, intercoxal 

 point of the prosternum not marginate ; episterna of metasternum 

 elongate, longer than broad in the anterior part, sensibly narrowed 

 behind ; three last abdominal segments with a transverse groove near 

 the anterior edge ; first joint of posterior tarsi without any distinct 

 lateral grooves ; fifth joint of all the tarsi glabrous, not ciliate 

 beneath. The general facies is not unlike that of the European 

 Lyi)erosomus , Motsch." 



Teibe BEMBIDIIDES. 

 Gen. TACHYS. 

 Tachys gratus. 



Head, prothorax, antennae, with the exception of the two basal 

 joints which are rufescent, black or deep fuscous ; elytra flave- 

 scent, edged all round with a fucous band ; prothorax a httle 

 ampliate laterally in the anterior part, slightly attenuate behind, 

 with the posterior angle sharp ; elytra oblong, convex, and having 

 on each side four dorsal, smooth striae, the first and second ones 

 begin at a short distance from the base, the former only reaching 

 the apex, and the other two are of equal length, and much shorter 

 than the second ; legs flavescent. Length 2 mm. ; width 1^ mm. 



Hah. Cape Colony (Laingsburg). 



Allied to T. faustus, but differs in colour ; the prothorax is pro- 

 portionally broader and less attenuate laterally behind, and the 

 number of striae on the elytra is different. 



Teibe TKECHIDES. 



Gen. POGONUS. 

 pogonus luctuosus. 



Black, very shining ; palpi, first basal joint of antenna and legs 

 piceous red ; apical part of the last joint of palpi flavescent ; longi- 

 tudinal supra-ocular ridge short, head smooth ; prothorax not much 

 rounded laterally and slightly attenuate in the posterior part, smooth 

 in the discoidal part, deeply and closely punctured along the base, 

 and very sUghtly along the anterior margin ; elytra truncate at 

 base, parallel, narrowly striate, strife smooth, third interval with an 

 indistinct puncture in the posterior part. Length 4 mm. ; width 

 2 mm. 



Hab. Cape Colony (Cape Town). 



