1807. 197 
1.— PsoQUiLLA MARGINEPUNCTATA, Hagen (plate 2, fig. 4). 
Psoquilla marginefunctata, Hag., Ent. Monthly Mag., vol. ii, p. 1:^3 
(1866). 
The whole of the upper surface of the body fuscous ; nasus paler, castaneous ; 
•pal'pi fuscous. Under-side of the thorax very pale whitish-yellow. \'^ings ovate, 
obtusely rounded at the apex, dark shining brown, the margins with rather large 
white spots, which are placed in the cells between the veins. Lei^& very pale 
whitish-yellow ; the tibia? with a fuscous ring at the apex ; tarsi ringed with 
fuscous. Length of body \"'. 
This curious little creature was recently described from an example 
supposed to have been found at Hamburgh. In Prof. Westwood's col- 
lection I find tvi^o specimens (one nearly destroyed) found by the late 
Mr. Eaddon amongst maize (Indian corn), probably at Bristol. I have 
no information as to whence the maize was imported. The insect can 
scarcely be considered indigenous. No doubt we have yet much to 
learn respecting these minute forms of Fsocidce, which, as mere living 
atoms, are very liable to be overlooked. 
(To he continued.) 
AN ESSAY TOWARDS A KNOWLEDGE OF BRITISH HOMOPTERA. 
BY THE BEV. T. A. MARSHALL, M.A. 
(Continued from page 152 J 
Genus euptektx, Curt., Ent. Mag. 1, 192. 
Identical with Typhlocyha, Germ., a name invented to express the 
absence of ocelli. But as the insects of the genus have ocelli, situated 
a little above the insertion of the antennae, and as the names TypUocyha 
and Eupteryx were published as nearly as possible at the same time, the 
latter and more rational appellation is here preferred. Eupteryx com- 
prises numerous species, which are in fact the minuter and feebler forma 
of lassus. A small number of them have been described by Curtis 
and Hardy, and one by Mr. Newman ; the remainder have never ap- 
peared in any English work, and it is probable that several new species 
will be discovered. They are all of small size, and frequently of great 
beauty, rivalling, when alive, the gayest of the Micro-Lepidoptera. The 
artificial characters by which they are distinguished from lassus, are 
taken from the hemelytra, wings, and legs. The fore and middle tibiae 
are without spines on their exterior edge, the middle being likewise 
destitute of the customary fringe of bristles on the inside. The mem- 
brane of the hemelytra has 3-4 cells only : in lassus there are 4-5. 
