APPENDIX. 



were captured by the Messrs. Crotch, beneath dead wood, in the 

 laurel-districts of Gomera " at the foot of the cataract, above Her- 

 migua." 



Fam. THEOSCIME. 



Genus THROSCUS. 

 Latreille, Prec. des Caract. 42 (1796). 



I. Oculi integri. 



Throscus latiusculus, n. sp. 



T. obovato-elongatus_(antice latiusculus), niger, subnitidus, ubique 

 crebre et minutissime punctulatus, dense flavescenti-cinereo pu- 

 bescens ; fronte tenuiter bicostata (costis postice, longe ante basin 

 evanescentibus) ; prothorace latiusculo, in disco convexo, postice 

 in medio distincte transversim biimpresso, punctis majoribus sat 

 argute irrorato; elytris leviter subpunctato-striatis, interstitiis 

 punctatis ; antennis pedibusque piceo-ferrugineis, tarsis testaceis. 

 Long. corp. lin. 1^ If . 



Habitat in Hierro, a DD. Crotch deprehensus. 



A Throscus which would seem to be peculiar to Hierro, the most 

 western of the Canarian islands, where several examples of it were 

 captured by the Messrs. Crotch. It may be known from the other 

 species here enumerated by its comparatively broad outline (par- 

 ticularly in front), dark hue, and rather strongly punctured surface ; 

 by its frontal costa3 being much abbreviated behind ; by its prothorax 

 being relatively wider, and more rounded at the sides ; and by its 

 elytra being somewhat less straightened, and elongated posteriorly. 



Throscus elongatulus, n. sp. 



T. prsecedenti similis, sed omnino angustior ac magis elongatus, pos- 

 tice saepius evidentius subdilutior ; costis frontalibus postice minus 

 abbreviatis (sed vix ad marginem pronoti anticum ductis) ; pro- 

 thorace magis conico, ad latera minus rotundato (magis oblique 

 recto) ; elytris longioribus, postice magis attenuato-produetis ; 

 punctura paululum subtiliore. Long. C9rp. lin. 1^-1|. 



Habitat Teneriffam, Gomeram et Palmam, in sylvaticis humidis 

 rarissimus. 



Likewise Canarian, having been obtained by the Messrs. Crotch 

 in Gomera (by sifting leaves and rubbish, above Hermigua) ; and I 

 captured a few specimens, which I believe should be referred to the 

 same species, in Teneriife and Palma. It is altogether narrower, 



tost 



