Mr. T. V. Wollaston on the Halticidne of the Canary Islands. 5 



medio subangulato ; elytris dense subrugose et sat proi'unde puuctatis, 

 distincte (praesertim versus latera) longitudiualiter striatis, testaceis, 

 sutura et maculis duabus (una sc. parva humerali, et altera majore sub- 

 rotundata centrali) in singulo positis ornatis ; antennis basi rufo-testa- 

 ceis, apicem versus nigrescentibus ; pedibus testaceis, femoribus posticis 

 apice nigris. 



Long. corp. lin. 1£-1£. 



Mas, tarsorum anterioruin articulo basilari sat dilatato. 



Habitat in foliis Echiorum (praesertim E. simplicis) in locis editioribus 

 Tenerift'aa et Hierro. 



Before examining critically this beautiful Longitarsus, I had re- 

 garded it as a mere topographical state of the Madeiran L. Masoni 

 (the L. Isopleoridis, Ins. Mad. 443, tab. 9. f. 4) ; for, being attached 

 principally to a gigantic Echium closely related to the E. candicans 

 on which that insect subsists, being exposed, apparently, to much the 

 same external conditions as its ally, and ornamented with almost 

 the same colouring, I did not imagine it probable that the small 

 pntna facie differences which it presented would be anything more 

 than such as Ave might reasonably look for, as the result of local 

 influences, in the same species inhabiting islands so separated from 

 each other as Madeira and Teneriffe. Nevertheless, on a nearer 

 inspection, the L. persimilis possesses such a number of minor cha- 

 racters peculiarly its own, that I cannot feel justified, despite the 

 many points of resemblance in the two insects, in regarding them as 

 otherwise than truly distinct, though clearly members of the same 

 geographical province. The Canarian species may be readily known 

 from the Madeiran one by its uniformly smaller size, rather shorter 

 and more lunulate pro thorax (which is a little more truncated in 

 front, and has the hinder angles more rounded -off, and the sides 

 somewhat more angulated in the middle), and by its entire sculpture, 

 which is denser and very much more coarse, especially on the elytra 

 (which are also more evidently striated than is the case in the 

 L. Masoni). Its elytra also are slightly more truncated at their 

 apex, its whole surface much less opake, and its coloration is alto- 

 gether a little different, — its head being less black, or more piceous, 

 its pro thorax more evidently rafo -testaceous, its legs and elytra not 

 quite so pale, and the dark portions of the latter smaller in size ; 

 i. e. the humeral and discal patches are, both of them, reduced in 

 dimensions, and the sutural line is equal throughout, being scarcely 

 (if at all) expanded posteriorly, whereas in the L. Masoni it is regu- 

 larly hastate or spear-shaped. Its limbs, moreover, are shorter and 

 less robust. It seems almost confined to the foliage of a large 



