19 



BLETHISA. 



The only species, B. multipunctata, is sufficiently described in the charac- 

 ters of the genera. It is rather a local species, inhabiting similar localities 

 to the Maphri. 



CYCHEUS. 



The only British species, C. rostratus, is of a dull black colour, and is 

 found in woods, under dead leaves, &c, and is generally distributed over the 

 country. This insect has the power of causing a shrill creaking sound when 

 handled, by rubbing the base of the abdomen against the base of the elytra. 



CAEABUS. 



C. intricatus. — Deep violet ; elytra much wrinkled longitudinally ; legs 

 black. Very rare. Has occurred in Devonshire. 



C. auratus. — Head and thorax green ; elytra with three raised longitudi- 

 nal ribs of a green colour, the spaces between being bronze ; legs red, Eare, 

 a doubtful native. 



C. nitens. — Head and thorax coppery ; elytra with three ribs which are 

 black ; while the intervals are bronze-green ; outer margin of the elytra bright 

 coppery; legs black. Is'ot uncommon in swampy places. It used to occur 

 plentifully at Southport. 



C. clathratus. — Dark greenish bronze ; elytra with three ribs, between 

 each two of which is a row of large round depressions. Occurs in Scotland 

 and the north of Ireland. 



C. gra nxjl A.TUS . — Bronze. Elytra mith three ribs between each two of 

 which is a row of small elevations (granules.) Common. 



(J. cancellatus. — Similar to granulatus, but with the basal joint of the 

 antennae and the femora, red. Eare, questionably British. 



C. monilis. — Variable. Bronze, green, or black. Each elytron with 

 three rows of granules, betioeen each two of which are three raised lines. The 

 var. consitus has the central raised line more prominent than the lateral ones. 

 Tolerably common, especially in the south. 



C. arvensis. Eesembles monilis in colour and sculpture, but is much 

 smaller ; the thorax is narrower ; and it has a flatter appearance. I have 

 taken this species on the mountains near Llangollen and on Snowdon. It 

 never occurs except at a considerable elevation. 



C, catentjlatus. — Black, with a violet margin to the thorax and elytra. 

 Sculpture of elytra somewhat like monilis, but less distinct. Common in 

 heathy situations. 



C. violaceus. Black, with a violet margin to the thorax and elytra — the 

 latter without any ribs or rows of elevations, but rather rough in appearance. 

 Common. 



