IDIOCERUS LITURATUS. 113 



not furnished with teeth. The radials stout, and each 

 coloured partly white and partly black. Wing iri- 

 descent, with coarse veinings. Legs pale grey ; outer 

 edges of the hind tibiae furnished with brown setas ; 

 the inner edges marked with brown tibial streaks. The 

 frons or face is yellow, with an upper grey mark. Brown 

 comma-shaped, and also other roundish dots, are on 

 the disk, and near to the clypeus. The fore femora 

 and tibiae are streaked with brown. 



Length, 0*25 inch, or 6*5 millimetres. 



Feeds on Salix alha. This insect is scarce. My 

 specimen is figured from one lent to me by Mr. 

 Edwards. 



Idiocerus LITURATUS, Fall. Plate XXXIIL, 

 figs. 3 to 3fZ. 



Bythoscopus lituratus, H.-Schaff. 

 Idiocerus maculipcniiis, Curt., Brit. Ent. fig., p. 733, 3. 

 ,, lituratus, Flor ; Marsh.; Kirschb. ; Sahl.; 

 Scott; Edw. pt. i. p. 120. 



Vertex yellowish, stained with ferruginous. Pro- 

 notum of the same tint, and spotted with brown. 

 Scutellum normally marked with a recurved, transverse, 

 indented streak. Elytra with a pale greyish hyaline 

 membrane, with a whitish patch on the corium, just 

 beyond the apex of the clavus. Nervures stout and 

 brown. Two deltoid dark brown spots occur between the 

 third and fourth radial nervures, and a broad brown spot 

 appears on the apex of the clavus. The legs pale. The 

 hind tibiae with brown setae, and a dark streak on the 

 inner side. Frons and most part of the under-side 

 orange-yellow. The saw-groove black. 



This species with its closed wings has some resem- 

 blance to I. varius. The banding and dark dashes on 

 the elytra are best seen by transmitted light. 



My figure is from Mr. Douglas's cabinet, but I liave 

 numerous examples in which the colours are almost 



I 



