IDIOCERUS CONFUSUS. 109 



Idiocerus adustus, H.-Schff. Plate XXXI., fig. 4 to 46. 



Bythoscopus adustus, H.-Schff. 

 Idiocerus stigmaticalis, Lewis. 



,, varius, Marsh. 



,, adustus, Kirschb. ; Sahl. ; Scott ; Edw. pt. 

 i. p. 116. 



General colour fuscous-grey or dh'ty ochreous. Two 

 black dots on the vertex near the eyes. Eyes reddish. 

 Antennae of male clubbed at the tip. Pronotum 

 irregularly stained with brown or black. Scutellum 

 with three triangular patches, and with several smaller 

 black dots. Apices of the elytra orange - yellow. 

 Bases brown, with dark veins, some of which are 

 nearly obsolete by fusion into the chitinous membrane. 

 The costal vein furnished with five or six conspicuous 

 tubercular teeth, and the nerve below punctured with 

 as many black spots. A whitish patch occurs just 

 before the second apical cell. The apex of the elytra 

 is usually of a pinkish red colour. The frons is occu- 

 pied by a suffused green patch, within which two large 

 brown stains appear, succeeded by two minute punc- 

 tures just above the insertion of the antennae. The 

 cheeks of the male are clothed with a fine silvery 

 pubescence. 



Body and wings 0*26 inch, or 7*00 millimetres. 



Inhabits various species of Salix. 



The presence of the above-noted tubercular teeth 

 on the costa is a good discriminating character. The 

 neuration of the elytron in my plate is rather ab- 

 normal. 



Idiocerus confusus, Flor. Plate XXXII. , figs. 1 to Ic. 

 Kirschb. ; Sahl. ; Edw. pt. i. p. 125. 



Colour uniformly pale ochreous or dusky grey. 

 Frons white and unspotted. Pronotum, scutellum, 



