Bagous. | RHYNCHOPHORA. 291 
the tibiz are long slender and subcylindrical and the tarsi rather long, 
and in these lie the chief characters by which it is separated from the 
following species; there has been some confusion with regard to this 
insect as the name has been applied to two or three distinct species ; 
it appears to be most closely allied to B. lutulosus, from which it 
differs in its more parallel-sided and proportionately narrower thorax as 
well as in the shape of the tibie. LL. 24-3 mm. 
In ditches ; on aquatic plants; occasionally in moss on pond sides and by sweep- 
ing herbage in damp places; extremely local and usually rare ; Sheerness (Walker) ; 
Woking (Champion); New Forest; Southsea, common in and near canal (Mon- 
creaff); Isle of Wight (Power); ditches near Sandown, common in April (S. 
Stevens). 
B. diglyptus, Boh. Short and broad, black, thickly clothed with 
grey scales ; head subglobose, with the forehead impressed with a small 
fovea ; rostrum stout and curved ; antenne short, black-or pitchy ; thorax 
transverse, obsoletely channelled, with a fovea on each side, constricted 
at apex, and with the sides straight to base, distinctly and subrugosely 
punctured; elytra broad, parallel-sided, not strongly compressed and 
attenuated at apex, with unicolorous pale grey scales, punctured strize not 
stror.g, alternate interstices broader but scarcely evidently raised, fifth 
interstice obsoletely callose behind; legs short and stout, black with the 
tibiz ferruginous, sinuate on their inner side and evidently thickened 
above middle ; tarsi short; the species may easily be known by its 
short and very broad form, uniform grey colour, rugose thorax, of which 
the sides are straight behind constriction, sinuate and thickened tibie 
and very short tarsi. L. 23-3 mm, 
In ditches, &c. ; very rare; one specimen was taken by Mr. J. T. Harris from 
accumulated flood refuse in his own garden on the banks of the Trent, near Burton, 
in April, 1872, and a second was subsequently found by Mrs. Harris crawling on a 
wall near the same spot; it will probably be found in the neighbouring ditches; the 
species is very rare on the continent. 
B. brevis, Schénh. Much narrower than the preceding species, 
oblong, black, with the funiculus of the antennz and the apex of the 
tibia ferruginous ; rostrum short and stout; thorax nearly as long as 
broad, with three fovez before apex, which are sometimes more cr less 
joined, with a strong central furrow ending in the central fovea, closely 
sculptured, sides slightly rounded ; elytra oblong, narrowed at apex, 
with rather fine, but distinct striew, alternate interstices broader, but 
searcely visibly raised, fifth evidently callose, third with an oval whitish 
spot behind middle, which is often more or less obsolete; tibiz sinuate 
on their inner side and thickened above middle, tarsi short. LL. 25 mm. 
In ditches, on aquatic plants, &c.; rare; it has hitherto only been found in 
Britain by Dr. Power at Horsell, Surrey ; it occurred to him in some numbers in this 
locality. 
B. lutosus, Gyll. Elongate, black, clothed with ashy scales ; 
antenne, except club, and the legs, red ; antenne inserted considerably 
u 2 
