CANARIAN COLEOPTERA, 



293 



This large Acalles is one of the most distinct and remarkable of 

 the species hitherto detected in these islands, though belonging to 

 somewhat the same tjiiie as the (comparatively diminutive) A. pilula. 

 It may readily be known by its laterally compressed outline and greatly 

 arcuated upper surface, and by the dark scales (besprinkled never- 

 theless with browner, or more diluted, ones) with which it is clothed, 

 — the sides of its prothorax, however, being broadly white, as also a 

 very minute, lunulate siitural patch, placed at about midway between 

 the base and (much decurvcd) apex of its elytra. Its nodules are 

 extremely numerous, and (although not particularly large) sharply 

 defined and setose, its legs and first tarsal joint are considerably 

 elongated, and the scales of its tibiae are setiform and erect. 



The A. verrucosus appears to be excessively rare, and peculiar, so 

 far at least as I have yet observed, to the sylvan districts of Tene- 

 riffe and Palma — where it occurs, beneath loosened bark and rotten 

 wood, in humid spots of a rather lofty elevation. I have taken it 

 in the laurel-foi'ests overlooking Point Anaga, and towards Taganana, 

 of the former ; and in similar situations on the ascent to the Cumbre, 

 above Buenavista, in the latter. 



Genus 191. ECHINODERA (nov. gen.). 



Corpus, et caet., fere ut in Acalles, sed a^quale, ubique subsequaliter 

 setosum (nee nodosum nee costatum, et vix fasciculatiun), postice 

 minus (sc. vix) coarctatum atque ibidem magis decurvum ; oculis 

 minoribus (sc. minutis), regulariter ovalibus, valde demissis ; scu- 

 tello nidlo ; funiculi articido secundo plus minus sensim longiore 

 quam primo. 



Ab Echinus, et Bepri, collum. 



There can be no doubt that the six insects described below are very 

 closely related to Accdles, though I think they possess, in common, 

 sufficient features to render their generic detachment advisable ; 

 but, from the fact of the oral organs being universally ignored in 

 the numerous members of the RhyncJiopliora, I am unable to say 

 Avhether any more decided characters might be brought to light from 

 an accurate examination of those organs in this group. They difier 

 mainly from Acalles, so far as their external details are concerned, 

 in their more even, and more ecpudly-setose, surfaces — which are 

 alike free fi-om nodules and ridges, and have their squamose bristles 

 more regularly distributed throughout (being scarcely at all collected 

 into fasciculi, or bunches) ; by their elytra being much less constricted, 

 and more decurved, behind ; by their eyes being considerably smaller, 

 more strictly oval, and so extremely sunken, or depressed, that they 



