CANARIAN COLEOPTERA. 291 



its elytral fascia is usually more suffused behind, and its female ros- 

 trum is a trifle more finely punctured. Two examples (the " var. j3 ") 

 which I caj)tured in Palma, and which possibly should be separated, 

 are more highly coloured than the others, with their prothorax less 

 straightened at the sides, and with their elytra besprinkled with a 

 few more conspicuous snowy-white scales. 



The A. instahiUs is far from uncommon in the sylvan districts of 

 Teneriffe (where I have taken it at the Agua Mansa, Las Mercedes, 

 and in the laurel-woods above Taganana) ; and I have also a specimen 

 (rubbed and somewhat unsatisfactory, but which I believe nevertheless 

 to be conspecific with the remainder) captured in Grand Canary ; as also 

 the pair above alluded to from the sylvan regions of Palma. So that, 

 if my conclusions be correct, it would seem to have a wide range 

 throughout the archipelago. 



If the last species be regarded as representing the Madeiran A. 

 dispar, perhaps the present one maj' be looked upon as the analogue 

 of the A. limulatiis of that Group. 



407. Acalles seticollis, n. sp. 



A. ovato-oblongus, angustulus, squamis brunneis et cinereis dense 

 nebulosus ; prothorace postice paulo angustato, utrin(2ue obscure 

 albidiore, in medio (prsecipue ad basin) subnigrescente, ubique (sed 

 praesertim antice et in medio) setis erectis obsito ; elytris postice 

 vix coarctatis, hand nodulosis sed setis erectis inter se distantibus 

 obsitis, fascia postmedia albidiore fere obsoleta, versus basin plus 

 minus indistincte albido-nebulosis ; pedibus (praesertira posticis) 

 brevibus, obscure squamoso-variegatis. — Long. corp. lin. ^-1. 



Habitat in Hierro, hand procul al) oppido Valverde parce repertus. 



I am far from certain that this very minute Acalles may not be a 

 modification, peculiar to the island in which I obtained it, of the 

 Madeiran A. WoUasto7ii; nevertheless, since its surface is more setose, 

 and its prothorax (which is rather less powerfully constricted behind 

 the apex) will be seen, when denuded of its scales, to be much more 

 deeply and closely punctured, whilst, on the other hand, the punc- 

 tures of its elytral striae are less developed, and with the interstices 

 more rugulose, I think it would scarcely be safe to treat it absolutely 

 as such. It may be known from all the other species here enumerated 

 by its exceedingly diminutive bulk and rather narrower, or more 

 oblong, outline ; by its surface being free from both nodules and 

 ridges, and most obsciirely clouded with brown and ashy-brown 

 scales ; by its elytra being scarcely at all constricted posteriorly ; 

 and by its legs, especially the hinder pair, being somewhat ai)bre- 



u2 



