90 Mr. A. Murray on Coleoptera from Old Calabar. 



but it cannot be this or any of the following cornute species, 

 for his species has the apex of the elytra hollowed out and with 

 the teeth px'ojecting. I have received another species, under the 

 mistaken name of Apate cornuto, from Abyssinia, which comes 

 much nearer this, and which I shall call B. Abyssiniciis, as from 

 the indications of its characters, which I am about to mention, 

 I may be entitled to give it a name. It is distinguished from 

 B. cornutus by many characters. The thorax is much shorter and 

 less massy. The projecting angles of the thorax are not of the 

 same shape : in B. Abyssinicus they are not flat, nor broader at 

 the side than above ; in it there is no tubercle on their under- 

 side. They are turned in in front, and the hollow between them is 

 more rounded, open, and less sloped to the centre ; that hollow 

 in it is much more pilose. The whole surface of the thorax 

 (except a longitudinal dorsal space) is covered with well-marked 

 distinct small tubercles, instead of the disk being smooth : its 

 elytra have traces of punctate striae ; but, instead of being re- 

 markably distinct, they are ahnost merged in a tendency to 

 transverse indiscriminate corrugation. The costse are also much 

 more prominent. 



2. Bostrichus produciiis, ImhofF in Bericht iiber die Verhand- 

 lungen der Naturforschenden Gesellschaft in Basel, vol. v. 

 p. 176. 



Mas. Niger, punctatus; thorace cornibus ^^^ 

 intus baud tuberculatis et elytris baud apice fr^ji 

 prolongatis. Femina. Niger, punctatus ; v^ 

 thorace cornibus intus bituberculatis ; ely- 

 tris singulis apice obtuse prolongatis. 



Long. 81 lin., lat. 2| lin. 



Like B. protrudens, but easily distinguished from it by the 

 projecting angles of the thorax being curved instead of straight; 

 and the female is equally easily distinguished both from it and 

 the male, as well as the other species with curved thoracic pro- 

 jections, by the apex of each elytron being produced into a pro- 

 jecting knob. 



Male. The head is nearly the same as in B. protrudens, except 

 that the intermediate shelf between the hollow furrow at its back 

 part and the ridge forming an apparent swollen upper lip is 

 absent ; that ridge is consequently broader, and is not marked 

 by any longitudinal line or division, The thorax is also nearly 

 the same, with the following exceptions : — it is narrower in front, 

 and the posterior angles are rather more rounded; the anterior 

 angles of the thorax are incurved instead of being nearly straight, 

 and have a slight turn outwards again at the very tip ; viewed 



