236 [March, 



brown or blackish, slightly paler near the base. Corium — anterior marginal 

 nenre for a greater or lesser distance from the base narrowly dark brown ; 

 nerves white, those enclosing the antiapical areas dai'k brown, rarely, the 

 longitudinal nerves towards the base, brovra. Memhrane — nerves brown, pos- 

 terior portion of the areas more or less brown. Sternum black; jprosternnm 

 yellowish-white, with a large black spot near the base of the legs. Legs yellow ; 

 thighs black, apex yellow, or 1st pair frequently yellow on the under-side. 

 Tibice yellow ; all the pairs exteriorly at the base with a short black streak, 

 3rd pair, towards the apex interiorly, more or less black, apex yellow. Tarsi 

 yellowish or pale brownish. Claws dark brown or piceous. 



Abdomen above, black, posterior margins of the segments, except the last, which is 

 broader, very narrowly yellow ; beneath black ; last genital segment black, 

 lower margin yellow ; external processes yellow. 



$ . Differs from the ^ in having the cro^ai and the upper portion of the face more 

 or less yellow. The genital segments will at once distinguish the sex. 



Length, 1 line. 



Easily distinguished from all the other species by its black head, 

 pronotum, aud scvitellum, and white elytra. 



Rather common at Boxhill. I originally took two specimens in 

 1867, which Mr. Douglas and I, at that time, considered to be 

 a new species, and they were sent over to Fieber with the name 

 cretacea, D. and S., attached. He, however, returned them as the 

 P. nana, H.-Sch. It occurs towards the end of July by sweeping 

 the short grass. 



Genus AGrALLIA, Curtis. 



The species comprised in this genus are all small, and have some 

 slight resemblance to Idiocerus. Fieber enumerates nine species as 

 European, three of which are found in this country. 



Species 1. — Aoallia puncticeps, Grerm. 

 lassus puncticeps, Germ., E. Ins. Eur., fasc. xvii, t. 12. 

 Agallia consohrina, Curt., Ent. Mag., vol. i, p. 193 ; Marshall, Eut. 



Mo. Mag., vol. iii, p. 151. 

 Agallia versicolor, Elor, Rhjai. Liv., vol. ii, p. 556 ; Kirschb., Cicad., 



p. 150, 3. 



Pale testaceous, or with a faint brownish tinge ; nerves of the elytra, 

 posteriorly, and membrane piceous. 



Head : croion with a black spot placed about midway between the centre and the 

 inner margin of each eye ; centre frequently with a brown streak, divided by a 

 pale narrow line, and extending down the face until about in a line with the 

 ocelli. Face with a brownish streak adjoining the inner margin of each eye ; 

 sides, from the eyes to the apex, more or less broadly brown, and with short, 

 transverse, black streaks or spots ; cigpeus with a narrow, brown, central line ; 

 ocelli generally black. Antennce pale testaceous ; setse fuscous. 



