Addenda to Family Pselapkidce. 129 



dorsal sulcus deep but very short ; abdomen slightly narrowed at base, 

 rounded laterally, first segment very large, hardly carinulate laterally 

 at the base, but trifoveate, with the median fovea transverse, more 

 than twice as broad as the lateral ones, and limited on each side by a 

 short carinule ; legs short, moderately thick, all the tibiae slightly 

 thickened, the posterior ones incurved ; last ventral segment large, 

 simple ; metasternum plane, obsoletely sulcate. Female. Length 

 2*20 mm. 



This species is very distinct from A. gabonieus, Eaffr. The colour is 

 much lighter, the prothorax is broadest at the very apex, the trans- 

 verse sulcus is almost lost, and the discoidal fovea sulciform. One 

 example only. 



Hab. Cape Colony (? Beaufort West). 



Tribe BRYAXININI. 



(p. 87.) 



Gen. EEICHENBACHIA. 

 (p. 90.) 



Eeichenbachia rivularis. 



Dark castaneous ; antennae and legs lighter ; palpi pale testaceous ; 

 body clothed with a greyish pubescence. Head of moderate size, a 

 little longer than broad, attenuate in front, and having three equal 

 foveae ; antennae somewhat shorter and elongate, joints third to 

 fifth inclusive elongate, sixth also elongate, but a little shorter, 

 seventh longer than broad, eighth slightly transverse, ninth a little 

 longer, quadrate, tenth wider, slightly transverse, eleventh suboblong, 

 acuminate at tip, and truncate at base ; prothorax larger than the 

 head, much attenuate in the anterior part, and moderately so in the 

 posterior, basal median fovea slightly oblong, base punctate ; elytra 

 large, attenuate at base, shoulders subnodose, base trifoveate, dorsal 

 stria slightly arcuate inwardly and abbreviated before the apex ; the 

 carinules of the first abdominal segment are a little divergent, 

 include the fourth part of the disk, and reaching to about one-third of 

 the length ; metasternum obtusely tuberculate at base close to the in- 

 termediate coxae, and broadly depressed ; last ventral segment paler, 

 strongly foveate, the fovea subquadrate ; trochanters simple, interme- 

 diate tibiae very briefly spurred at apex, posterior ones slightly incurved 

 and thickened towards the apex. Male. Length 1*80 mm. 



This new species resembles the female of R. diversa, Eaffr., and still 

 more the male of JR. Peringueyi, Eaffr. In both these species the third 



