Limnobaris. ] RHYNCHOPHORA. 379 
L. T-album, L. Elongate, black, upper surface more or less 
distinctly, but scantily, clothed with recumbent grey hairs, inserted in 
the punctures, underside thickly clothed at sides with whitish or yellowish 
white scales ; rostrum curved, smooth on its dorsal central line; thorax 
longer than broad, distinctly, closely and regularly punctured ; elytra 
with deep striz, interstices with single rows of punctures. L. 34-4 mm. 
Male with the abdomen longitudinally impressed at base; in the 
female it is convex. 
Marshy places ; on aquatic plants; also by general sweeping; local, but not un- 
common in many districts; London district, common in most ditches (S. Stevens) ; 
Faversham; Chobham; Maidstone; Hertford; Suffolk; Hastings; St. Leonards; 
Amberley; Portsmouth district; Glanvilles Wootton; Burnham, Somerset, in 
abundance ; Bristol; Crymlyn Bog, Swansea, on Erica tetraliz (this was probably 
accidental) ; Llanberis; Sutton Park and Coleshill, near Birmingham ; Wicken and 
Burwell Feus; Repton; Scarborough; Northumberland and Durham district ; 
Scotland, local, Solway, Tweed and Clyde districts. 
BARIS, Germar. 
This genus is a very extensive one, containing upwards of three 
hundred species ; they are widely distributed throughout the world ; 
although the majority are found in tropical countries yet the genus is 
well represented in the Palearctic region and no less than forty-seven 
species occur in Europe ; of these six only are found in Britain, and one 
of these seems to require further confirmation; it is very possible, as 
Mr. Champion observes (Hnt. Monthly Magazine, xxv. 37), that 
B. cuprirostris, which occurs at Calais, may be found along our southern 
coast, if its food plants Diplotawxis, Brassica, Erysimum and Sinapis 
arvensis are examined in various districts, especially when we remember 
that B. scolopaceus has only occurred in one locality and might easily 
have hitherto escaped observation ; besides the characters above mentioned 
both our genera of the Barina may further be known by the distinct 
scutellum, vertically oval and free eyes and simple femora. 
The larve do not call for any particular remark ; they undergo their 
transformations in the stems or at the head of the root of their food 
plants ; according to Plieninger (Isis, 1837, p. 525), however, the larva 
of B. chloris forms small galls at the roots of its food-plant, which it 
leaves when full fed, and undergoes its transformations in the earth. 
The sexual characters are not marked; in the males the rostrum is a 
little thicker and more closely punctured than in the females, and the 
base of the abdomen is longitudinally excavate in the middle. 
The British species may be separated as follows :— 
I. Thorax and elytra glabrous, entirely, or almost en- 
tirely, without scales. 
i. Elytra unicolorous, deep black . . . . 
ii. Elytra unicolorous, deep blue, or greenish-blue. 
1. Interstices of elytra narrower; body oblong. 
. B. LATICOLLIs, Marsh. 
