386 Mr. T. V. Wollaston on the Tarphii. 



is both exceedingly rare and local, — the only specimens of it (21 in 

 number) which have as yet come beneath my notice having been 

 captured by myself, during May of 1858 and the following year, in 

 the woods of the Agua Mansa of Teneriffe. 



7. Tarphius gigas, n. sp. (PL XIX. fig. 7.) 

 T. latus, oblongo-quadratus, crassus, granulis squaniisque fusco-picei3 

 parce vestitus et fere setis carens ; prothorace in medio latiuseulo, 

 postice vix sed antice gradatim angustiore, angulia anticis acutis sed 

 emarginatione antica baud profunda ; elytris in disco subhorizontalibus, 

 sat distincte (prasertim ad latera et postice) nodosis (nodis obtusis sub- 

 picesceutioribus) ; antenuis pedibusque rufo-ferrugineis. 

 Long. corp. lin. 2\-2\. 



Habitat in sylvaticis TenerifFse, rarissimus ; duo specimina, in montibus 

 supra " Ponta Anaga " detecta, sola possedi. 



This is the largest species of Tarphius which has as yet come 

 under my observation ; and, apart from its comparatively gigantic 

 bulk, it may be recognized by its broad, thick, squarish-oblong form, 

 by its rather piceous and obtusely-nodose surface, as well as by its 

 elytra having their disk somewhat horizontal (though less so than 

 in the T. caudatus), and their extreme apex rather drawn out or 

 acuminate. Its prothorax is subsemicircular in outline, being 

 broadest about the middle, and but very slightly narrowed behind. 

 It is apparently of the greatest rarity, — the only two specimens 

 which I possess having been captured in the dense and elevated 

 laurel-region between Taganana and Point Anaga, of Teneriffe, 

 during May of 1859. 



8. Tarphius caudatus, n. sp. (PL XIX. fig. 8.) 

 T. quadrato-oblongus, subnitidus, granulis squamisque niagis nigrescenti- 

 bus parce vestitus et fere setis carens ; prothorace niox ante medium 

 latiusculo, postice vix sed antice sat subito angustiore, angulia anticis 

 acutis sed emarginatione antica minus profunda ; elytris valde sub- 

 punctato-rugosis, in disco borizontalibus, ad latera et postice valdo 

 subnodoso-carinatis (carinis ad apicem in lobum subquadratum pro- 

 ductis, caudam obtusam apice excavatam efficientibus) ; antennis 

 pedibusque obscure rufo-ferrugineis. 

 Long. corp. lin. 1^—2. 



Habitat TenerifTam, in sylvis editioribus ad " Las Mercedes " et supra 

 Tagananam, sestate haud infrequens. 



This most remarkable Tarphius may be instantly known by the 

 broad (though posteriorly emarginate) lobe into which the extreme 

 apex of its elytra is produced, — forming a kind of blunt, squarish 

 tail. Its surface, also, is rather darker than that of any of the 

 other C'anarian Tarphii, except the T. cow/cstus ; and it is likewise 



