CANARIAN COLEOPTERA. 261 



The dark brovmish-yellow hue of the elytra of this species, which 

 has usually both of its fasciae well expressed (the anterior one being 

 largely developed), together with the apex of its pro thorax being 

 almost, or even entirely, dark, and its surface clothed with some- 

 what long and erect hairs, will serve to discriminate it. It is rather 

 common in Lanzarote and Fuerteventura, where it occurs in com- 

 pany with the A. affine ; in Grand Canary it is scarcer, and in Tene- 

 riife still more so : so that it would seem to be more particularly 

 characteristic of the eastern portion of the archipelago. The few 

 examples which I have taken in Grand Canary and Teneriife are a 

 trifle larger than those from Lanzarote and Fuerteventura, and at 

 first sight might easUy be mistaken for the A. canariense. Never- 

 theless, on closer inspection, they will always be seen to have their 

 pubescence longer and more erect, and their prouotum almost (or 

 even entirely) concolorous at its apex : their elytra, too, are generally 

 a shade darker, with the sculpture less dense, and with the fascia 

 (although occasionally suffused) more developed — the anterior one 

 extending to the outer margin, and the hinder one being less often 

 broken in the centre (and even when resolved forming two large and 

 conspicuous patches). In its habits, also, it is not quite the same, 

 since it infests the Euphorbias promiscuously, and is not partial like 

 that insect to the £J. canariensis especially. 



422. Aphanarthrum canariense. 



Aphanarthrum canariense, Woll., loc. cit. 1G4 (1860). 

 Habitat in Canaria, Teneriffa, Gomera, Palma et Hierro, plantas 

 Euphorhice canariensis joutridas destruens. 



The rather broad and shortly-cyHndric outline (in proportion to 

 its size) of this Aphanarthrum, in conjunction with its very abbre- 

 viated pubescence, the brightly lurid apex of its prothorax (which 

 has the extreme anterior margin perceptibly thickened), and the 

 dense (though not very deep) sculpture, and somewhat c/Ms7i:?/-yellow 

 hue, of its elytra (which are usually, nevertheless, a shade clearer 

 than those of the A. bicinctum), will sufficiently characterize it. Its 

 fasciae are more or less transversely abbreviated — the anterior one 

 (which is thick, and much developed, in the centre) seldom reaching 

 to the lateral margins, whilst the hinder one is more or less obso- 

 lete, being always broken in the middle, and generally represented 

 by a detached central dash at a short distance from the apex of each 

 of the elytra. 



In its habits, the present species would seem to be almost (if not 



