76 BRITISH CICAD.E. 



Frons long, with three rather marked keels ; the mid- 

 keel is unforked, and narrowed with the outer ones to 

 the scutellum, the carin?e being carried through it to the 

 labrum. Second antennal joint spotted, and more 

 than three times the length of the basal joint. Eyes 

 large and greenish grey. The general colour of this 

 insect is greenish ochreous-yellow. The carin?e are 

 nearly white. At the apex of the elytron a small 

 brown forked streak occurs, and just before the sinuous 

 transverse nervures two black dots are placed, and 

 succeeded by a larger dot at the point of the suture. 

 The costal rim is rough and strongly thickened. The 

 lower margin of the clavus also is thickened in a less 

 degree. All the under-side yellow, with black abdo- 

 minal rings edged with white. The pygofer on the 

 under-side is nearly concealed by a quantity of white 

 mealy matter, from which alone the anal process pro- 

 trudes. No setigerous granules occur on the elytra. 

 In this respect this insect fails to answer to any of the 

 live species named by Fieber under his genus Chlori(nia. 

 One other character also he gives which differs from 

 the diagnosis of the above insects : — Vertex elongated, 

 trapezoidal, visibly longer at the nape of the neck 

 (" ;\ la naque ") than at the summit, and the second 

 long apical nervure of the elytron alone forked. 

 (17^/.- Part II., p. 35,) 



The above-described insect has some affinity to 

 Lihitrnia smaragduJa and L. unicolor. The peculiar 

 neuration and mealy character seem to justify its being 

 regarded as a new species. 



Size, with elytra, 4*56 x 1-52 millimt;tres, or 

 0-18 X 006 inch. 



Taken sparsely on sandy banks at Weycombe, Hasle- 

 mere, in May. 



Before closing the diagnosis of the Delphacida; I 

 add a few of the observations made by Fieber on his 

 genus AchrotiJc. They may be considered with reference 

 to the immature forms of Stiroma ptcridis : — 



