290 RHYNCHOPHORA. [ Bagous. 
darker ; thorax broad, angularly dilated in front behind constriction and 
thence gradually narrowed to base, closely sculptured, with an indis- 
tinct central ridge in front ; elytra broad, somewhat abruptly narrowed at 
apex, with coarse punctured striz ; interstices convex; legs dark, rather 
long, tibize and tarsi ferruginous. L. 3-3} mm. 
In ditches, &c. ; on aquatic plants ; extremely local and, asa rule, rare; Hammer- 
smith Marshes (Gorham) ; Sheerness (Walker); Notting Hill (Power); Gravesend, 
in plenty, April 19, 1867 (Power) ; Woking (Marsh). 
B. tempestivus, Herbst. Elongate, rather narrow, black, varie- 
gated with ashy and whitish scales; antenne inserted at about the 
middle of rostrum, ferruginous with the apex and club pitchy; thorax 
longer than broad, channelled, not much narrower than elytra, with the 
scales usually much thicker at sides ; elytra elongate, subparallel, nar- 
rowed at apex, with the shoulders, a large spot behind middle near 
suture, a callosity on fifth interstice, and many scattered specks and 
spots white ; punctured strie fine, alternate interstices very slightly and 
scarcely visibly elevated ; legs dark, tibiz ferruginous, tarsi elongate, with 
the second joint plainly longer than broad. L. 23-3 mm, 
In ditches ; on aquatic plants; local, but common where it occurs; Tottenham ; 
Barnes ; Hammersmith ; Notting Hill (abundant 1863 (Power) ); Sheerness ; Graves- 
end (in plenty, April 19, 1867 (Power) ); Whitstable; Bearsted, near Maidstone ; 
Harwich ; Southsea, canal, common in moss in spring (Moncreatf) ; Robins Wood, 
Repton. 
B. lutulosus, Gyll. Allied to the preceding but evidently broader 
and stouter, much less, although distinctly, variegated, and with the 
thorax considerably narrower than the elytra, subtransverse, and plainly 
rugose ; the elytra have the alternate interstices evidently, although not 
strongly, raised; the tibie are shorter and more thickened, and the tarsi 
are evidently shorter and have the three first joints transverse. L. 
21-3 mm. 
Sandy districts ; by sweeping herbage in damp places; occasionally in sand pits ; 
rare; Barnes, Ashtead, Shirley, Esher (Champion); Esher, Horsell and Woking 
(Power) ; Lumps Pond, Southsea (Moncreaff) ; Armagh, one specimen in moss from 
edge of a small lake (Johnson). 
B. frit, Herbst. (subcarinatus, Gyll., teste Bedel). Of the same form 
as B. nodulosus, and, according to Thomson, distinguished from all the 
other species by having the thorax somewhat broader than long, closely 
and distinctly and subrugosely punctured, with a channel in the centre, 
and with a white line on each side ; the elytra compressed and acumin- 
ate behind and submucronate at apex, with the alternate interstices not 
raised, and the fifth evidently callose, and with a white spot a little be- 
hind middle spreading over the third and fourth interstices ; the tibie 
are straight on their outer side and abruptly incurved just at apex ; and 
the tarsi are about half the length of the tibiz, with the second joint 
slightly transverse, and not narrower than the third ; according to Bedel 
