118 BRITISH CICADiE. 



The female is of a generally rusty red colour, and 

 has two small white spots on the crown. Two brown 

 spots occur on the scutellum. 



This insect may be taken on Populus tremula^ and on 

 several species of Salix, but it is not common. 



Dr. Capron took an insect on the Scotch fir, in 

 " March or April," which differs in colour from the 

 above, but which may be nevertheless referred to J. 

 elegans. 



Inch. Millimetres. 



Expanse 0*42 11*0 



Body 0-21 5-5 



Idiocerus nubilis, Biichton. Plate XXXV., figs. 4, 4rt. 



Male. Head and thorax broad. Abdomen long- 

 conical. Apex rounded, and fringed with brown 

 bristles. General colour, with the exception of the 

 abdomen, bronzy- or olive-green. Eyes black. Pro- 

 notum with a sinuous brown transverse streak. 

 Scutellum with a horizontal wavy line, followed by the 

 usual transverse furrow. Elytra with apices rounded, 

 and with brown limbi. Neuration obscurely yellow. 

 A triangular brown spot occurs at the apex of each 

 clavus. Wings grey. Abdomen greyish black, with 

 dark segmental markings. Pygofer of the male with 

 two stout horny processes below, surmounted by the 

 Cauda and the genital valve, and a conical tube, from 

 which the curved penis proceeds. The first tarsal joint 

 twice the length of the second, or of the third. Antenna 

 with two stiff side setffi on the terminal joint. Legs 

 greenish. 



As I cannot refer this insect, taken at Haslemere, 

 Surrey, to any known Idiocrnis, I name it as above, 

 from the cloudy appearance of the elytra. It has some 

 of the characters of I. albicans. 



Expanse, 0*39 inch, or lO'G millimetres. 



