260 CANARIAN COLEOPTERA. 



ahitaceous and most minutely punctulated ; its elytra are pale-tes- 

 taceous, with the two ordinary darker dentate fascias strongly ex- 

 pressed (the anterior one heing deeply looped, or double, in its central 

 portion, whilst the hinder one is considerably removed from the 

 apex) ; and its entire surface is studded (though not very densely so) 

 with rather long and coarse erect hairs. It is the common species of 

 Lanzarote and Fuerteventura, where it often swarms in the stems and 

 branches of the decayed Euphorbias ; and it is likewise pretty abun- 

 dant in Grand Canary ; whilst in Gomera it was found by Dr. Crotch. 

 In Lanzarote it was taken also by Mr. Gray ; and, on the 28th of 

 March 1859, I captured it even on the little uninhabited island of 

 Lobos, off the extreme north of Fuerteventura, where the Euphorbias 

 attain a most gigantic size*. 



420. Aphanarthrum piscatorium. 



Aphanarthnnu piscatorium, WulL, he. cit. 166 (1860). 

 Hahitat in Teneritfa, Gomera, Palma et Hierro, ramos Euphor- 

 biarum emortuos (praesertim E. piscatoncv) perforans. 



Whilst the A. afftne is more particularly abimdant throughout the 

 eastern islands of the archipelago, the present somewhat insignifi- 

 cant little species would appear to be exceedingly common in the 

 central and western ones. In Teneriffe, Gomera (where it was 

 found by Dr. Crotch), Palma, and Hierro it is locally abundant, oc- 

 casionally teeming in the rotten EKjphorbia-stems — princii^ally those 

 of the E. piscatoria (under which circumstances it occm^s likewise at 

 Madeira). It may be known by its rather small size and by the 

 dull- or brownish-testaceous hue of its elytra — the darker fasciae of 

 which are not very well defined, the hinder one being more espe- 

 cially sufiused and reaching consequently almost (or entirely) to the 

 extreme apex. Its elytra, which are closely punctured, have their 

 sides perhaps just jperceptihhj less parallel than is the case in the 

 other species ; and its entire surface is densely beset with rather soft 

 and suberect hairs. 



421. Aphanarthrum bicinctum. 

 Aphauarthrum bicinctum, Wall., loc. cit. 105 (1860). 

 Hahitat in Lanzarota et Fuerteventura sat vulgaris, necnon in 

 Canaria et Teneriffa minus frequens. 



* The A. affne is a good deal allied, in general /ac?ci, to the A. evphorhics of 

 the higher elevations of Madeira ; it is, however, on the average, a little smaller 

 than that insect, its pubescence is longer, its prothorax is relatively more deve- 

 loped and less acuminated in front, and the punctm-es of its eljtra are larger, 

 fewer, and mere decidedly arranged in longitudinal rows. 



