221 
[March, 
AN ADDITIONAL SPECIES OF BRITISH ROMOPTERA. 
BY JAMES EDWARDS. 
Several examples of both sexes of the insect described below were 
sent to me for examination some time since by Mr. Douglas, with 
an expression of his opinion that it would prove to be the Anomia 
sulphurella, Zett., of Lethierry’s catalogue. Having mounted the £ 
genitalia, and found that it differed in that respect from the species 
to which it is apparently most nearly allied, viz., rosce and Douglasi , 
I sent a pair to Mr. Lethierry, who returned them as the sulphurella , 
Zett., of his catalogue. According to Sahlberg, however, sulphurella , 
Zett., Thamnotettix virescens , Fall., and, therefore, another name 
becomes necessary for our insect, and the one I have applied seems 
expedient. The structure of the central genital process (genital style) 
in the £ will, I think, sufficiently demonstrate the distinctness of the 
insect before us. In the case of single examples of the $ some care 
is requisite, in order to separate this species from rosce, 5 ; the latter 
is, however, somewhat smaller, and the crown is longer and narrower, 
vith the outline of the posterior margin in a continuous curve, without 
any trace of an angle. 
Ttphloctba Lethierryi. 
Anomia sulphurella, Lethierry, Cat. Hem. Nord., edition ii, p. 75. 
Crown : posterior margin (including the ejes) forming a 
distinct but obtuse angle, anterior margin gently convex in 
the d , more produced, with straighter sides, in the $ . 
d • Deep yellow, inclining to orange. Elytra with the 
costa generally, and the inner margin sometimes, narrowly 
reddish, membrane and some wedge-shaped spots on the 
conum hyaline. Posterior tibise generally tinged with pink ; 
anterior and intermediate tarsi sometimes, and all the claws 
always, fuscous. Genital style with three branches at the 
apex, of which one, the lower, is three-pointed, and the 
other two are bifid (fig. a). 
¥ . Pale whitish -yellow. Membrane very faintly tinged 
with fuscous. Tarsi and claws as in the d • Length, If lines. 
Figures h and c show the structure of the genital style in the $ 
of T. rosce and T. Douglasi respectively. 
Mr. Douglas’ specimens were from maple and lime, while I took 
most of mine on the trunks of black poplars. 
Brarondale, Norwich : 
1 1 th January, 1881. 
