400 CANAKIAN COLEOPTEEA. 



more distant inter se. Although undoubtedly constant, I cannot think 

 that such small modifications of a ti/jye so u'ell marked, both in colour 

 and sculpture, as that embodied by the C. sangulnohnta can be indi- 

 cative of more than a slight geographical phasis of that insect. 



The C. sanguinolenta is common (particidarly in low and sandy 

 spots) in the eastern portion of the archipelago, but seems to become 

 gradually rarer as we approach the west. In all probability it is 

 universal, though hitherto it does not happen to have been observed 

 in either Gomera or Hierro ; but in Lanzarote, Fuerteventura, Grand 

 Canary, TenerifFe, and Palma I have myself captured it, more or less 

 abundantly. In Lanzarote and Fuerteventura it was found also by 

 M. Hartung ; in the former of those islands by Mr. Gray ; and from 

 Teneriffe it has been communicated by the Barao do CasteUo de Paiva. 



012. Chrysomela bicolor. 



Chrysomela bicolor, Fab., Si/st. Ent. 95 (1775). 



regalis, Oliv., Ent. v. 91. 538. tab. 7. f. 98 (1807). 



canariensis, BnilU, in Webb et Berth. {Col.) 73 (1838). 



regalis, Hartung, Geolog. Verlialtn. Lanz. uml Fuert. 141. 



Habitat Lanzarotam, Fuerteventuram et Canariam, sub lapidibus 

 hand infrcquens. 



This large and superb Chrysomela, so well distinguished by its 

 oblong outline, shining, brassy-green surface, and by the immense 

 punctures (or varioles) of its elytra being extremely wide apart, 

 each of them encircled by (or, as it were, set into) a rounded purple 

 spot, and, although irregularly disposed, having a tendencij to ar- 

 range themselves in pairs (a peculiarity which causes certain of the 

 spots to be either almost or entirely confluent), appears to be con- 

 fined, so far as observed hitherto, to the eastern portion of the archi- 

 pelago — occurring in Lanzarote, Fuerteventura, and Grand Canary. 

 In the first of these (where it was found also by M. Hartung) I have 

 taken it, from beneath stones, on the open grassy plain above Los 

 Valles de S''^ Catalina, about two miles to the south of Haria ; in 

 the second (from whence it has likewise been communicated by the 

 Barao do Castello de Paiva) near Port Gabras ; and in the third it was 

 tolerably abundant around Maspalomas, in the extreme south of that 

 island, during April 1858. The specimens off'er scarcely any appre- 

 ciable diiference from a Sicilian one in my collection, unless it be that 

 the elytra have a less tendency to be obsoletely striated and to be 

 sprinkled with minute and shallow punetules between the varioles. 



1 have adopted the specific name of bicolor (which is prior to that 

 of regalis) for this insect on the authority of the ' Cat. Col. Europae '; 



