\^() [December, 
T. impressopunctata, Signoret, 1. c, p. 150 — Dufour ? Ann. 
Soc. Ent., 1846, Bull, xlvii (note). 
The insects of this genus vary almost like our common Ptyelus, 
but the present species may be at once known by the constant hlach 
marJc upon the suture. The varieties mentioned are (1) green, (2) with 
the humeral squamula black, (3) with a brown scutellum having two 
apical yellow dots, (4) with a medial yellow baud on the scutellum ; but 
those I have taken are all of one type, differing merely in the general 
tint of the surface, and in having the anterior edge of the scutellum 
more or less darkened. 
Discovered last year on the sand hills at Freshwater Bay, Pem- 
brokeshire, in a sheltered hollow, thinly covered with thyme and short 
grass, where it is common,* but appears to be restricted to a small area. 
It is a sluggish insect, concealing itself on the ground, and not easily 
detected. Viewed from above it might pass, at a small distance, for a 
Ptyelus, but the trieoloured frons beneath is very conspicuous. I 
believe no insect of this genus has ever before been recorded as British. 
The present species (according to Signoret) occurs also near Paris, and 
on both sides of the Mediterranean. 
Genus Agallia, Curt. 
This genus was proposed by Curtis in the 1st vol. of the Entomo- 
logical Magazine, p. 193, but the characters given do not determine 
with any precision its relation to the rest of the group. The species 
bear a superficial resemblance to Idiocerus, being much broader in front 
than behind, and having the vertex reduced to a more or less narrow 
luuulc. They have, however, most of the characters of lassus, differing 
in the position of the ocelli, which are not more distant from each other 
than they are from the eyes, and are placed on the upper part of the 
frons, instead of at the junction of the frons and vertex. For a full 
description of the genus see Flor, " Die Rhynchoten Livlauds," vol. ii., 
p. 548, and cf p. 365. I am only acquainted with two British species, 
as follows : — 
(1) Pronotum transversim rugulosum A. venosa, 'Fall. 
(2) Pronotum parce et subtiliter punctatum.. A. consohrina, Curt. 
1, — Agallia vejiosa, Fall. 
Pallide testacea ; caput, pronotum, scutellum, nigro fuscoque varia. 
Vertex pronoto tripjo brevioi-. medio longior quam lateribus ; maculse 
2 in ipso apice rotuniise, magnae, nigrse, quas inter linea longitudinalis 
nigra vel fusca in frontem descendit, ibique mox bifurcata ( $ ), utrinque 
* I hive a few duplicates to distribute.— T. A. M. 
