134 CANAEIAN C'OLEOPTEEA. 



being often still more diluted, or subrufescent), its pubescence has a 

 more conspicuously golden tinge, its prothorax more particularly is 

 narrower, straighter at the sides, and (together with the head) more 

 closely and roughly punctured, its legs are shorter and less robust, 

 and its antennse are less incrassated towards their extremity. In its 

 habits it is very peculiar, being confined apparently to the- dry ele- 

 vated cindery districts of Teneriffe which are characterized by the 

 presence of the " Eetama " (or Sparthmi nubigena) — from about 

 6000 to perhaps 9000 feet above the sea, — where it occurs amongst 

 the small stones and rotten sticks which accumulate around the roots 

 of that remarkable Broom, running with the greatest velocity. In 

 such situations I took it, not uncommonly, during May of 1859, both 

 on the lofty Cumbre (adjoining the Canadas) above Yeod el Alto and 

 on the opposite range (hkewisc clothed with Ectamas) above the 

 Agua Mansa. 



Fam. 17. TELMATOPHILID^. 



Genus 9G. DIPHYLLUS. 



Stephens, III. Brit. Ent. iii. 87 [script. Biplujllus] (1830). 



229. Diphyllus lunatus. 



Dermestes hmatus, Fab., Ent. St/st. i. 232 (1792). 

 Biphyllus lunatus, Steph., III. Brit. Ent. iii. 78 (1830). 

 Diphyllus lunatus, Redt., Fna Austr. 188 (1849). 



, Woll, Ins. Mad. 172 (1854). 



Biphyllus lunatus, Id., Cat. Mad. Col. 51 (1857). 



Habitat Palmam sylvaticam, ad truncum arboris vetustum in Bar- 

 ranco da Agua, Maio exeunte a.d. 1858, sat copiose lectus. 



This European insect (which occurs rarely at Madeira) appears to 

 be very scarce, or at all events local, in the Canaries. The only 

 island in which I have hitherto observed it is Palma ; where, at the 

 end of May 1858, 1 captiu'od several specimens from off the trunk of 

 an old laurel high up in the Barranco da Agua. 



Genus 97. THALLESTUS. 



Wollaston, Trans. Ent. Soc. Bond. (3rd series) i. 163 (1862). 



230. Thallestus subellipticus. 



Thallestus subellipticus, Woll, he. cit. 155. pi. 7. f. 4 (1862). 

 Habitat Teneriffam, e plantis putridis Etiphorbice canariensis in 

 montibus siipra Sanctam Crueem parce captus. 



For the peculiarities of Thallestus, and the distinctions between 



