446 Mr. T. V. Wollaston on the Canarian Malacoderms. 



siderably more elongated, narrower, and differently shaped, I am 

 compelled to lay greater stress upon certain small additional cha- 

 racters than I should otherwise have done. Apart, therefore, from 

 the antenna? of its male sex, the D. dispar may be known from its 

 ally by being a trifle slenderer, blacker, and more pilose, by its 

 prothorax (particularly in the males) being narrower and less deve- 

 loped and in the females a little more deeply and less closely punc- 

 tured, by its elytra in the latter sex being more rugose, and by the 

 legs of its males (especially the feet) being, like the antennae, longer 

 and less robust. I have taken it, sparingly, throughout the district 

 of El Monte, in Grand Canary, in company with the last species, 

 but have not, hitherto, observed it elsewhere. 



Genus Dolichosoma. 

 Stephens, Man. Brit. Col. 193 (1839). 



25. Dolichosoma Hartungii, n. sp. 



D. anguato-cylindricum, postice vix latius, submetallico-nigrum, sat 

 nitidum, fere glabrum; capite prothoraceque profunde punctatis, hoc 

 ante medium lato sed inde ad basin valde angustato, ad latera mar- 

 ginato; elytris dense punctato-rugulosis, pilis perpaucis suberectis 

 nigris postice obsitis ; antennis pedibusque nigris, illis ante basin vix 

 rufescentioribus. 



Long. corp. lin. 1|-2J. 



Dasytesjiliformis, Heer, in litt. 



, Hartung, Geolog. Verhiiltn. Lanz. und Fuert. 140, 141. 



Habitat Lanzarotam, Fuerteventuram, Canariam et Teneriffam, hinc inde 

 ad flores tempore vernali baud inrrequens. 



Judging from the description and figure, the present insect is 

 closely allied to the D. protensum, Gene, from Sardinia, though at 

 the same time perfectly distinct from it specifically in most of its 

 characters. It would seem to be altogether darker and more deeply 

 punctured, with its prothorax narrower behind and unchanneled on 

 the disk, and with its entire surface considerably less pilose. The 

 sixth joint of its antenna?, from the apex, is perceptibly smaller than 

 either of those which precede and follow it ; but this may very pro- 

 bably be the case in its European representative also, though I do 

 not see any notice of the fact in the generic formula. It is locally 

 far from uncommon, during the spring months, throughout the 

 eastern and central islands of the group. I have taken it around 

 Haria, and elsewhere in Lanzarote ; near Oliva, in Fuerteventura ; 

 on the calcareous ground at Tafira, in the region of El Monte, in 

 Grand Canary ; and on the mountains above S ta Cruz, as well as 



