CANAKIAN COLEOPTERA. 399 



Genus 236. STYLOSOMUS. 



SufFrian, in Linn. Ent. iii. 140 (1848). 



610. Stylosomus biplagiatus, n. sp. 



S. flavo-testaceus ; capite prothoraceqiie sat grosse punctatis, hoc im- 

 maculato sed basin versus (elevatam) saepius paulo infuscatiore ; elj'- 

 tris profunde substriato-punctatis, oculo armato minute seriatim 

 pubescentibus, pone scutellum obsoletissime et pone medium obso- 

 lete transversim nigro-fasciatis (fascia antica interdum omnino ob- 

 soleta, et postica ssepius fracta — vel plagam parvam singulam vel 

 plagas duas disjunetas efficiente); an tennis versus apicem tarsisque 

 plus minus nigrescentibus. — Long. corp. lin. 1-1^. 



Ohs. — Sp. S. tamarisci affinis, sed paulo major, pallidior et minus 

 pubescens ; capite prothoraceque immaculatis ; elytris per suturam 

 concoloribus sed transversim obsolete bifasciatis (fasciis saepius ob- 

 soletis, postica plagam parvam solam postmediam in elytris singulis 

 positam efformante). 



Habitat Fuerteventuram, in foliis Tamaricis galUcce infra oppidu- 

 lum Betancuriam, Aprili ineunte a.d. 1859, sat copiose deprehensus. 



Although with similar habits, the present Stylosomus is certainly 

 distinct from the S. tamarisci ; and, judging from the diagnoses, I 

 think it can scarcely be referred to any of the few other members of 

 the genus hitherto recorded. It was detected by myself in the Rio 

 Palmas of Puerteventura, at the beginning of April 1859 — where I 

 brushed it, not uncommonly, off the shrubs of Tamarix gallica at a 

 short distance below the little town of S*'' Maria Betancuria. 



Fam. 53. CHRYSOMELID^. 



Genus 237. CHRYSOMELA. 

 Linnaeus, Syst. Nat. edit. 1 (1735). 



611. Chrysomela sanguinolenta. 



Chrysomela sanguinolenta, Linn., Fna Suec. 165 (1701). 



lucidicollis ?, Kiist., Kaf. Europ. ii. 73 (1844). 



ssx}ig\xmo\sn.i&, Hartmiy,Geoloy. Verhdltn.L(mz.undFuert.l41,l'i2, 



Habitat sub lapidibus in insulis Canariensibus, in Gomera et Hierro 

 solis adhuc hand detecta. 



The Canarian examples of this Chrysomela recede a little from the 

 ordinary European ones, and may perhaps be referable to the C. lu- 

 cidicollis, Kiist. — which is admitted, however, to be a mere variety 

 of the sanguinolenta. They differ in having their prothorax much 

 more shining and almost impunctate (except at the sides), and in 

 their enormous elytral punctures (or varioles) being perhaps a trifle 



