16 Mr. D. Sharp's descriptions of some new species 



are less insuperable ; wlietlier there Avill ultimately prove 

 to be any truth in this supposed correlation between 

 paucity of individuals of a species and small area of 

 distribution, remains to be seen ; at any rate it seems 

 a priori certain that the probability of breeding between 

 individuals with but small previous kinship must be 

 lessened in a ratio with the diminished area of distribution. 



The six species for which I have established the genus 

 Proterhinus are of a very interesting nature, though they 

 consist only of insects of small size : they appear to me, 

 as Avill be seen from the remarks I have made beloAv, to 

 point out that the position of the anomalous Agli/cyderidce, 

 should be at the head of the Khyncophorous series of 

 Coleojitera, supposing the arrangement of Dr. Leconte to 

 be a valid one; and though my very limited knowledge 

 of the Rhyncophora scarcely justifies me in expressing an 

 opinion, it seems to me that the sj^stem of this esteemed 

 American entomologist is very far in advance, and that in 

 the right direction, of any that has been hitherto proposed 

 for this most extensive assemblage of beetle^. 



Besides the Proterhini, I have described ten species 

 belonging to the family Cossonides ; and as regards these 

 I wish to say that I have not felt called upon to discuss 

 the species of the family previously described from this 

 locality, and for this reason, that I think Mr. Blackburn 

 will be able to discover numerous other species of the 

 family, so that a monograph, or anything like it, had better 

 be deferred for the present. All I need say is, that I 

 think I am justified in considering all these ten species as 

 previously undescribed. 



The interesting but very complicated question of the 

 affinities of the Coleopterous fauna of these islands is a 

 point on which I had better defer comment till my know- 

 ledge of the species is more complete. 



Proterhinus vestitus, n. sp. Fusco-rufus, setis depressis, 

 aliisque erectis vestitus, antenuis tibiisque rufis ; protho- 

 race antrorsum constricto, basin versus angustato, dorso 

 ina3quali, fortiter punctato, opaco ; elytris rufescentibus, 

 plus minusve distincte nigro-signatis, squamulis depressis 

 plagiatim vestitis, fortiter sed parum conspicue punctatis, 

 humeris acutis. Long. 2 — 3 mm. 



Antennae red, about as long as head and thorax, rather 

 slender; 1st and 2nd joints thick, 3rd slender, a good 

 deal longer than the 2nd, the 9th joint evidently a little 



