88 Mr. A. Murray on Coleoptera from Old Calabar. 
are still tubercles, although very small and flat-topped, while in 
the supposed female they appear as if rolled flat and even with 
the surface, and the elytra have the cost less distinct, and are 
rather deeply punctate than reticulate; the hollow space at the 
apex of the elytra, too, is nearly smooth. 
Var. indistincta.—There are some slightly larger and more 
coarsely reticulate specimens, which look somewhat different ; 
but I can find no tangible character ; however, I note it as a 
variety, because I have received specimens from Natal belonging 
to it, and not of the normal type. 
I have no certain knowledge that this is the A. monacha of 
Olivier ; but it corresponds with his description and figure; and as 
his species is said to have come from Senegal, I think we may as- 
sume it to be it, especially as there is nothing else from Africa (so 
far as I know) to compete with it, except A. Francisca, Fab., from 
Algeria, which, although very close to it, is still distinct. A. 
Francisca can be readily distinguished from the present species, 
however, by the narrower thorax, the more rounded and decided 
punctures of the elytra, and more especially by the hollowed 
apical truncature of the elytra, which in the male of 4. Francisca 
is strongly marked with deep, scattered, round punctures; while 
in this species, on close examination, it will be seen that the 
truncature, although apparently punctate, is in reality not so, 
but derives the appearance from raised papille or minute tuber- 
cles instead of sunk holes. The female of A. Francisca, Fab., is 
A, Carmelita of Fabricius, according to Lacordaire. 
Common at Old Calabar. 
Bostricuus, Geoffr., Lacordaire. 
§ 1. Thorax with anterior angles prominently projecting. 
1. Bostrichus protrudens. 
Niger, nitidus; thorace tuberculato, angulis 
anticis recte projicientibus, apice haud acu- 
tis, subtus unituberculatis ; elytris striato- 
punctatis, apice rotundatis, sine truncatura, 
margine solum parum explanato. 
Long. 8-83 lin., lat. 22 lin. 
Black, uieianels shining. Head invisible from above, in 
consequence of the projection of the thorax, covered with small 
round tubercles, which are finest behind; deeply hollowed out 
behind in a transverse rounded groove reaching to the posterior 
part of the eye on each side; in front of this furrow is a higher 
shelf running from the anterior part of the eye on each side; 
there is a longitudinal line in the middle of this, which has 
