56 [Angwst, 



side as far as the basal sulci. In this peculiar sculpture of the thorax 

 the species resembles A. loricntus, from Guinea, which, according to 

 Laferte's description, differs from ours in its duller surface and 

 punctate-striate elytra. 



Abacetijs CAMEE0NU8, sp. n. — Ad. Sect., I, 2, A, c, Chaud. Monogr., per- 

 tinet : latus, niger nitidns, palpis antennis et pedibus piceo-rufis : ihorace 

 transversa medio dilatato, antice suhrecte, postice sinuatim, angitstato, anguHs 

 anticis prominentihus acutis, posticis fere rectis, margine laterali postice in- 

 crassafo a disco sulco angusto separato : elytris relative brevibvs, basintrinque 

 arcuaiis, convexis profunde et acute striatis striis Icevissimis : corpore subtzis 

 Icetii, episternis posticis brevissimis. Long., 12 — 14 mm., S ? . 



Mount Cameroons. 



A handsome species ; allied to A. grandis, but very different in 

 the proportions of the elytra to the thorax, and distinguished further 

 by its glossy surface and red legs. The elytra are only twice the 

 length of the thorax, and are rounded on the sides and narrowed behind 

 gradually to the apex. The hind angles of the thorax are almost 

 obtuse-angled ; the anterior angles are remarkably acute and produced. 



Abacettjs leistoides.— a. camerono affinis sed fades valde diversa. 

 Elongato-oblongus, niger nitidus, palpis antennis pedibusque obscure piceo- 

 rufis : thorace transversa quadrato-cordato, angnlis posticis rectis, margine 

 laterali postice haud incrassato, intus a disco sulco angusto et profundo 

 separato : elytris elongato-ovatis profunde simpliciter striatis .- stei'nis im- 

 punctatis. Long., 11 mm., <? ? . 



Gaboon. 



Belongs to the same sub-group as A. cameromis, but of the ordinary 

 elongate oblong form of the Ahnceti, and somewhat resembling A. 

 atratus. The lateral marginal rim of the thorax is thickened, but not 

 dilated posteriorly, and its accompanying groove is equally uniform in 

 ■width, and unusually deeply incised. The thorax is impunctate, much 

 broader than long, broadly rounded before the middle, and rather 

 strongly narrowed and sinuated to the base, the posterior angles being 

 rectangular and sometimes prominent. The metathoracic episterna 

 are a little broader than long. 



Abacetus nyass^.— Ad. Sect., I, 2, A, c, Chaud. Monogr., pertinet : 

 angustus, niger nitidus, palpis, antennis articulo primo tarsisque rufo-piceis : 

 thorace rolundato-quadrato, lateribus arcuatis mox ante angulos posticos 

 sinuatis, margine haud incrassato sulco haud profundo a disco separato, medio 

 basi rugoso-punctato : elytris anguste oblongis, acute striatis interstitiis plants 

 prope apiccm convexis. Long., 9 mm. 



