CAXARIAX COLEOPTERA. 13 



by its rather wider head and prothorax (the former of which has the 

 eyes a Httle more prominent, whilst the latter is more broadly 

 margined towards the basal angles), by its rounder or more ellip- 

 tical elytra (which have their zigzag fascia very much deeper or 

 more developed, and an evident, though never very conspicuous, 

 cloud immediately behind the scutellum), and by its posterior feet 

 being a trifle longer. 



The D. elliptipennis appears to be extremely rare, and confined 

 (so far as observed hitherto) to the damp sylvan regions of Teneriffe, 

 Gomera, and Hierro, — in the former of which I captured it in the 

 laurel-woods above Taganana, and in the latter at El Golfo (on the 

 western side of the island). Its detection in Gomera is due to the 

 recent researches of Dr. Crotch, who obtained it on the mountains 

 above Hermigua. 



19. Dromius sigma. 



D. angustulus, nitidiusculus ; capite nigro-piceo vel piceo ; protho- 

 race elytrisque testaceis, his subparallelis, sutura fasciaque media 

 dentata nigro-fuscis ; antennis, palpis pedibusque pallido- testaceis. 



Var. /3. Capite prothoraceque (rufo-brunneo) angustioribus, illo ob- 

 longo oculis paulo minus prominentibus. [/n excelsioribus Tene- 

 riffse.] — Long. corp. lin. 1^-vix l^.. 



Carabus sigma, Rossi, Fna Etrus. i. 226 (1790). 

 Dromius sigma, Woll, Ins. Mad. 5 (1854). 



, Id., Cat. Mad Col. 3 (1857). 



, Schaum, Kat. der Ins. Deutsch. i. 273 (1860). 



Habitat Canariam et Teneriffam, sub lapidibus, rarior ; fere ad 

 9000' s. m. ascendens. 



The European D. sigma, which occurs sparingly in the Madeiran 

 Group, is decidedly rare in these islands, where however it is vridely 

 spread at intermediate and lofty altitudes. I have taken it in the 

 region of El Monte in Grand Canary ; and on the exposed mountain - 

 slopes above the plain of Laguna in Teneriffe, as well as on the 

 elevated Cumbre adjoining the Canadas (nearly 9000 feet above the 

 sea) — where the specimens (var. /3) have their head and prothorax, 

 apparently, a little narrower, and their eyes somewhat less promi- 

 nent. In Teneriffe it was found, also, by Dr. Crotch. 



20. Dromius incertus, n. sp. 



D. subnitidus ; capite sat magno, nigro-piceo ; prothorace piceo (vel 

 rufo-piceo), subquadrato postice paulo angustiore, sat convexo, in 

 medio profunde canaliculato ; elytris substriatis, fusco-piceis, ver- 



