4G0 CANARIAN COLEOPTERA. 



sufRciently near to render it probable that the two arc specifically 

 identical ; nevertheless, if they should prove hereafter to be distinct, 

 I would then propose for the present one the title of ascendens. His 

 examples are a trifle brighter, and have their prothorax rather nar- 

 rower in front and more obliquely-straightened at the sides. 



The H. tenuipimctatus (as here defined) is, like the lateralis, essen- 

 tially an alpine insect — occurring on the mountains of Teneriffe, 

 from about 7000 to at least 9000 (or perhaps 10,000) feet above the 

 sea. On the lofty Cumbre above Ycod el Alto, and overlooking the 

 Cafiadas, I captured it in profusion, from beneath stones and scoriae, 

 at the beginning of May 1859 ; where it was taken afterwards, 

 though more sparingly, by Dr. Crotch. The species may be known 

 by its rather depressed body and opake surface, which is densely and 

 minutely (but nevertheless very evidently) punctulated all over, the 

 punctures of the elytra, however, being exceedingly minute ; by its 

 prothorax being transversely quadrate, equalli/ (though not greatly) 

 roimded at the sides, and with the posterior angles rather more ob- 

 tuse than right angles ; and by its elytra being almost simple, or with 

 scarcely any traces whatsoever of longitudinal stria?. 



698. Hegeter lateralis. 



H. praeeedenti similis, sed paulo convexior angustior nitidior, sensim 

 magis subcylindrico-ovatus, punctui'tl omnino fortiore et vix par- 

 ciore ; prothorace ad latera minus asqualiter rotundato (i. e. mox 

 ante medium sensim latiore), ad basin minus evidentcr bisinuato, 

 angulis posticis subobtusioribus ; elytris obsoletissime substriatis, 

 ad latera paido magis rotundatis, quare versus humeros minus par- 

 aUelis. 



Variat (forsan secundum sexum) plus minus nitidiusculus, jiunctura 

 plus minus grossa et elytris plus minus evidentcr substriatis. — 

 Long. corj). lin. 2|-4. 



Hegeter lateralis, Brulle, in Webb et Berth. (Col.) 65 (1838). 



Habitat in montibus excelsis Teneriffae, una cum specie prsecedente 

 degens. 



This species occurs in company with the preceding one, in almost 

 the loftiest elevations of Teneriffe, ascending, I believe, to about 

 10,000 feet above the sea. Indeed I at first thought that it might 

 perhajis be the other sex of that insect, but on a closer inspection I 

 perceive that its differences are too numerous to warrant that suspi- 

 cion. It may be known from it by being, on the average, a little 

 convexer, narrower, and more shining, having more of a subcylindric- 

 ovate outline than an oblong one; by its jjunctation being altogether 

 stronger, and perhaps a trifle less dense ; by its prothorax being 



