Bagous.~\ RHYXCHOPHORA. 291 



the tibise ar-- long slender and subcyliudrical 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 tibiae. L. 2|-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 ; Stieerness (Walker ', ; 

 Woking (Champion) : Xew Forest; Southsea, common in and near canal (Mon- 

 creaff ) ; Isle of Wight (Power) ; ditches near Sundown, common in April (S. 

 Stevens). 



B. digrlyptus, Boh. Short and broad, black, thickly clothed with 

 grey scales ; head subglobose, with the forehead impressed with a small 

 fovea ; rostrum stout and curved ; antennae 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 subrngosely 

 punctured; elytra broad, parallel-sided 5 not strongly compressed and 

 attenuated at apex, with unicolorous pale grey scales, punctured striae not 

 stror.g, alternate interstices broader but scarcely evidently raised, fifth 

 interstice obsoletely callose behind; legs short and stout, black with the 

 tibiie 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 tibiae 

 and very short tarsi. L. 2|-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, ne;ir 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 iii the neighbouring ditches ; the 

 species is very rare on the continent. 



B. brevis, Schonh. Much narrower than the preceding species, 

 oblong, black, with the funiculus of the antennae and the apex of the 

 tibiae ferruginous ; rostrum short and stout ; thorax nearly as long as 

 broad, with three fovea? before apex, which are sometimes more or 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 striae, alternate interstices broader, but 

 scarcely visibly raised, fifth evidently callose, third with an oval whitish 

 spot behind middle, which is often more or less obsolete ; tibiae sinuate 

 on their inner side and thickened above middle, tarsi short. L. 2^ 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 munbere in this 

 locality. 



B. lutosus, Gyll. Elongate, black, clothed with ashy scales ; 

 antenna?, except club, and the legs, red ; antennae inserted considerably 



c '2 



