Coleoptera of the Canary Islands. 157 



thoraceque profunde punctatis, hoc ad latera crenulato, fovea 

 postmedia minus profunda impresso ; elytris substriato-punc- 

 tatis, macula nigra postmedia plus minus distinctd in singulo 

 ornatis ; antennis apicem versus obscurioribus. 



Long. corp. lin. 1 — 1^. 



Corticaria maculosa, Woll., Ann. of Nat. Hist. (Ser. 3), ii. 408 

 (1858). 



Habitat insulas Canarienses, sub cortice Euphorbiarum laxo de- 

 siccate, passim. 



The C. maculosa occurs also in the Madeiran group, — having 

 been characterized by myself, in 1858, from specimens taken near 

 Funchal. It does not appear to be attached exclusively to the 

 Euphorbias, though certainly more common beneath the dead 

 outer fibre of them than elsewhere ; so that it could not properly 

 be omitted in the present Paper. It seems universal (though no- 

 where very abundant) throughout the Canarian archipelago, — 

 Grand Canary being the only one of the seven islands on which I 

 do not happen to have observed it, I have even captured it from 

 out of the old Euphorbia-stems on the little island of Lobos, in 

 the Bocayna Strait. It is a somewhat variable insect, the post- 

 medial patch of its elytra being at times (especially in immature 

 examples) quite obsolete,— in which case the surface is wholly 

 ferruginous. The specimens which I found at El Golfo, on the 

 west of Hierro, were principally of this latter character. 



Fam. HISTERID^. 



Genus Eutriptus, nov. gen. (PI. VII. fig. 7.) 



Corpus parvum, oblongum, glaberrimum : capite subretractili, 

 stria frontali Integra instructo : prothorace transverso-sub- 

 quadrato, apice sat emarginato, ad latera ipsa stria marginal! 

 notato ; prosterno angusto, bistriato, basi rotundato producto, 

 lobo antico magno lato subcarinato, antice rotundato : me- 

 sosterno brevi, apice leviter emarginato, prosterni basin re- 

 cipiente ; scutello minuto, triangulari : elytris leviter striatis : 

 alis amplis. Antennce (fig. 7 a) sub angulo frontis insertae ; 

 scaj)o magno, subflexuoso et apicem versus valde incrassato ; 

 funiculo distinctissime 6-articulato, articulo Imo elongato 

 clavato, reliquis brevibus longitudine subsequalibus, latitudine 

 vix crescentibus ; capitulo abrupto, solido, globoso-ovato. 

 Labrum breve, transversum, subcorneum, angulis anticis ro- 

 tundatis, apice fere integrum. Mandibulce aequales, sub- 

 triangulares, apice inflexae acutee, intus infra apicem dente 



