238 CANARIAN COLEOPTERA. 



from the inferior ones, being a little less densely setose, rather more 

 acute behind, and with the basal ridges of their elytra more developed. 

 Such specimens I regarded in my Paper as the " var. /3." In its 

 normal phasis I have taken it in the Barranco do Passo Alto, close 

 to S*^^ Cruz ; on the lower mountain-slopes towards Laguna ; adjoin- 

 ing the beach at the Puerto Orotava, in the direction of the Cemetery 

 and Lazaretto ; and at Ycod el Alto. Two examples of it have also 

 been communicated by the Barao do Castello de Paiva ; and I have 

 inspected two more which were found by Dr. Crotch in Gomera. 

 These latter have their inner prothoracic costse rather more deve- 

 loped than in the ordinary Teneriffan specimens, and their outer ones 

 somewhat less so ; and their elytra are a little more oblong. But I 

 do not think that they are indicative of more than an insular state 

 (var. y) of the C. dilaticollis. 



377. Casopus alticola. 



Casapus alticola, WolL, Trans. Enf. Soc. Lo)uI. (3rd series) i. 198. pi. viii. 

 f. 2 (1862). 



Habitat in locis intermediis etvalde elevatis Teneriffa?, rarissimus. 



As stated in my Paper above alluded to, it is just possible that this 

 insect may be but a phasis of the preceding one peculiar to the loftier 

 elevations of TenerifFe, — in which case, however, it would of course 

 imply the range of that species to be greater than I have supposed. 

 Nevertheless I gave my reasons for concluding that, although un- 

 doubtedly nearly allied to the dUaticoUis, it is probably distinct from 

 it. It differs mainly in its elytra being more deeply striate-punc- 

 tate, a little more di'awn-in at the shoulders and with theii' fascia? 

 generally more conspicuous, and in the first joint of its hinder male- 

 feet being somewhat less developed. I have taken it, sparingly, on 

 the wooded mountains about the Agua Munsa, and also on the Cumbre 

 (adjoining the Canadas) above Ycod el Alto — at more than 8000 feet 

 above the sea. 



378. Casopus radiosus. 

 Casapus radiosus, WoU.,Tra)is.E)it. Soc.Lond. (3rd series)!. 1J)9( 1862). 



Habitat in montibus Canaria; Grandis, sub lapidibus parce lectus. 



This Casojnts (remarkable, inter alia, for its prothorax being scarcely 

 at all dilated in front, and for its elytra being distinctly striate-punc- 

 tate, with their abbreviated basal ridges very numeroiis and well de- 

 fined) seems to be peculiar to the mountains of Grand Canary — where, 

 during the spring of 1858, 1 captured it, very sparingly, on the ascent 

 to the Eoca del Soucilho. above San Mateo. 



