CANARIAN COLEOPTERA. 395 



latera rotundato-ampliato ; elytris breviusculis, convexis, ad latera 

 rotundatis, vix siibseriatim pubescentibus ; antennis nifescentibus, 

 apicem versus obscurioribus ; pedibus infuscato-rufescentibus, fe- 

 moribus obscurioribus. — Long. corp. lin. li-l|. 



Habitat Lanzarotam borealem, sub lapidibus in aridis, rarissima. 



The present Psevdocolaspis, which appears to be of the greatest 

 rarity, and confined (so far as I have observed hitherto) to Lanzarote, 

 may be known from the other species here enumerated by its pro- 

 thorax and elytra being, both of them, more convex and more rounded 

 at the sides, and by the former being a little longer, whilst the latter 

 are very evidently shorter, than is the ease in any of its allies ; by its 

 scutellum being more semicircular (instead of subquadrate), and less 

 truncated behind ; and by its surface being more regularly brassy, and 

 somewhat less densely clothed with short silvery pile. The few spe- 

 cimens which I have seen were taken in the extreme north of Lan- 

 zarote — from beneath stones on the dry rocky ground at the base of 

 the Risco, and immediately behind the Salinas. 



§ II. Scutellum subquadratum. 



605. Pseudocolaspis dubia, n. sp. 



P. praecedenti fere similis, sed paulo minus seuea ; prothorace ely- 

 trisque minus convexis necnon ad latera minus rotundatis, illo 

 breviore, his longioribus, magis oblongis ; antennis pedibusque sub- 

 gracilioribus. — Long. corp. lin. 1|-1|. 



Habitat Fuerteventuram, Aprili ineunte a.d. 1859 in Rio Palmas 

 capta. 



In its subquadrate scuteUum and oblong outline, this species has 

 more in common with the following two than it has with the pre- 

 ceding one ; nevertheless in some respects it is intermediate between 

 the latter and them. It may be known from the splendidula and 

 obscurijpes (with which alone, from the shape of its scutellum, it need 

 be compared) by its somewhat shorter prothorax (which is obscurely 

 ferruginous along its anterior edge), by its rather convexer and more 

 rounded elytra, slenderer limbs, and altogether slightly different hue. 

 The only three examples which I have seen were captured by myself 

 in the Rio Palmas of Fuerteventura, at the beginning of April 1859. 



606. Pseudocolaspis splendidula. 



P. laete ajneo-cuprea, grosse sed breviter argenteo-pubescens, dense 

 et minute punctulata ; elytris plus minus obsolete subseriatim pu- 

 bescentibus : antennis rufescentibus, apicem versus plus minus ob- 

 scurioribus ; pedibus rufescentibus. 



