504 BRUCHIDES. 
in comparison with the very large forms found in South America and the Antilles. 
They are apparently rare insects, and our region no doubt possesses a greater number 
of species than we are able to record at present. 
1. Caryoborus rubidus. 
Caryoborus rubidus, Chevr. Ann. Soc. Ent. Fr. 1877, Bull. exiv.’ 
Hab. Mexico, Tuxtla 1, Putla, Chiapas, Cosamaloapan (Sa/é). 
The examples we have received of this species are only five in number, and are in a 
bad state of preservation. They vary in colour and somewhat in punctuation, and 
there may possibly be more than one species among them ; but this I find it impossible 
to decide. The darker examples come very near to C. arthriticus, Fabr. 
2. Caryoborus chiriquensis. (Tab. XXVI. fig. 13.) 
Fusco-rufus, olivaceo pruinosus ; antennis fusco-nigris ; prothorace valde transverso, parum punctato, lateribus 
sinuatis, angulis posterioribus minute acutis ; elytris seriatim punctatis vix striatis. 
Long. 8-10 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Antenne elongate, serrate from the fourth joint outwards, the joints not impressed. 
Head with very large eyes, which are but little distant in front. Thorax sinuate at 
each side, so that the hind angles are slightly prominent and acute, with a few coarse 
punctures near each outside, and a divided patch on the middle. LElytra not striate, 
with rows of punctures which at the base are coarse. Pygidium slender, subacuminate. 
Front coxe widely separated; hind femur with a series of very coarse denticulations 
placed on a raised margin, extending more than halfway towards the base, terminated 
by a longer tooth, the basal portion of the femur quite without serration or denticles. 
Four examples were found of this distinct species. It will be readily identified by 
the greater development of the femoral serration ; indeed, it may probably prove to be 
entitled to generic distinction, as the hind tibie possess at the extremity two minute 
articulated spurs. 
3. Caryoborus testaceus. 
Caryoborus testaceus, Motsch. Bull. Soc. Mose. 1873, 2, p. 2161. 
Hab. Nicaraeva 4. 
We have not received any Caryoborus corresponding with this description; the size 
given for it, viz. 23 lin., is too small for C. rubidus, to which in many other respects it 
appears to be similar. 
