CANARIAN COLEOPXERA. 599 



disco antico plus minus obscure trinotato ; antennis fusco-piceis ; 

 pedibus saturate testaceis. — Long. corp. lin, vix 1|. 



Trog-ophloeus transversalis, JVoll, Cat. 3Ia(l. Col. 202 (1857). 

 . Habitat Lanzarotam, Fuerteventui-am et Teneriffam, in humidis, 

 rarissimus. 



In its rather large size, considerably developed, somewhat depressed 

 elytra, and the deep transverse impression at the base of its pro thorax, 

 this Tro(joplilQius has a good deal in common with the European scro- 

 hlcidatus (=arcuatiis, Steph.) ; but it is more finely punctured, its 

 eyes are a little smaller, its antennae are somewhat longer and less 

 black, and the hinder portion of its elytra is gradually of a clear 

 rufo-ferruginous hue. The species was enunciated in my Madeiran 

 Catalogue from a unique example which I captured, in 1855, on the 

 Southern Deserta (or Bugio) ; and it appears to be nearly as rare at 

 the Canaries as in the neighbouring Group. The very few specimens 

 which I have seen were taken by myself — near Haria in the north of 

 Lanzarote, at La Antigaia in Fuerteventura, and at the Agua Garcia 

 in Teneriffe. 



921. TrogopMoeus riparius. 



2\ subnitidus, niger, elytris sa^pius concoloribus (rarius picescentibus); 

 prothorace subcordato (antice lato), in disco postico longitudinaliter 

 biimprcsso ; antennis fusco-piceis, articulis duobus basalibus pedi- 

 busque rufo-testaceis. — Long. corp. lin. li-l|. 



Trogophlceus riparius, Boisd. etLacord., Faun. Ent. Paris, i. 467 (1835). 



, Erich., Gm. et 8pec. Staph. 807 (1839). 



, Kraatz, Nat. der Ins. Deutsch. ii. 871 (1856). 



Habitat Canariam, Teneriffam et Palmam, hinc inde in humidis, 

 late diffusus. 



I believe that this TrogopMoeus is better referred to the European 

 T. riparius than to the biUneatus — its slightly larger size and stronger 

 punctation, combined with the two basal joints of its antennae (and its 

 entire legs) being rufo-testaceous, seeming to identify it with the 

 former, rather than the latter, of those species. It appears to be 

 scarce, or at any rate local, in these islands — occurring in moist places 

 at low and intermediate altitudes. I have taken it (chiefly on the 

 wing) in damp cultivated spots near Teror in Grand Canary, around 

 S'" Cruz and at the Agua Garcia in Teneriffe, as wcU as in Palma. 



922. Trogophlceus bilineatus. 



T. praecedenti similis, sed paulo minor, vix subtilius punctulatus ; pro- 

 thorace antice scnsim minus dilatato, foveis duabus dorsalibus magis 

 interruptis ; antennis paulo brevioribus, nigrescentioribus, fere con- 



