342 PHYTOPHAGA. [ Longitarsus. 
L. brunneus, Duft. Extremely closely allied to the preceding, from 
which it may be distinguished by its greater convexity and by its elytra 
being much more curved laterally, with the shoulders effaced and not 
projecting, and the apex of each strongly rounded ; the thorax is nearly 
as long as broad, and the punctuation of the elytra is finer. L. 2 mm. 
On low plants; generally distributed and common in the London district, and 
probably throughout the greater part of England; Bold records it as common in 
the Northumberland district ; Scotland, Solway and Moray districts ; Ireland, near 
Waterford, Armagh, &c. 
This species is so closely allied to L. luridus that the two species are 
perpetually being confused, and the records cannot be altogether trusted. 
Mr. Rye (Ent. Ann. 1869, 57) has the following remark regarding tle 
two species, which up to that time were regarded as identical in Britain :— 
“7. lurida is said by M. Allard to have only some analogies (!) with T. 
brunnea ; but it will certainly give any one who has a moderately large 
series of old durida a puzzling day’s work before he will be able to satisfy 
himself as to the specific difference of these two insects:” this remark 
all students of the group will cordially agree with ; the extreme forms 
are not, perhaps, hard to distinguish, but intermediate forms appear to 
occur, which make it somewhat doubtful whether they ought really to 
be separated. Allard says that L. brunneus may be distinguished from 
all the other species of Longitarsus by its more thick-set and square 
form, which it owes to the fact that the thorax is long and almost as 
broad as the elytra, and he compares it to Plectroscelis aridella; the 
colour of both the species varies very much from li-ht red to almost 
black. Dark examples of ZL. luwridus bear a strong superficial resem- 
blance to L. anchuse, from which they may be distinguished by the 
more slender antenne and stronger punctuation. 
L. fusculus, Kuts. Oblong-ovate, subeonvex, shining, fuscous or 
pitchy fuscous, with the shoulders, margin and apex of elytra, the base 
of the antenne and tke legs paler; thorax transverse, very finely 
granulose and very minutely punctured; wings absent; elytra with the 
shoulders scarcely prominent, separately rounded obtusely at apex, with 
thick distinct and confused rugose punctuation; the species is allied 
to the two preceding, but is smaller, and has the elytra more thickly 
punctured. L. 14-15 mm. 
Male with the last segment of the abdomen furnished with a deep 
round fovea, and slightly bisinuate at apex; anterior tarsi with the 
first joint moderately dilated. 
Very rare; described by Herr Kutschera from specimens sent him by Mr. G. R. 
Waterhouse. Highgate; Purfleet; Littlington, Cambridge. 
L. agilis, Rye. Ovate, convex, shining, of a lurid testaceous colour, 
with the suture darker, at all ev-nts behind ; under-side pitchy; the 
colour, however, is somewhat variable; antenne pitchy with base 
reddish ; thorax distinctly punctured; wings present; elytra broad, 
