189 SERRICORNIA. [ Ptinide: 
long and rather slender, reddish; thorax evarsely and rugosely pune- 
tured, with a transverse row of tubercles (which are sometimes not very 
plain) before middle, and constricted behind middle ; scutellum large ; 
elytra oblong in both sexes, very much broader than thorax, and longer 
in proportion than in any of the other species, rather strongly pune- 
tured in distinct rows, with strongly marked shoulders ; legs reddish, 
moderately long, and rather slender. L. 33-5 mm. 
In old posts, &c.; rare; Cobham, Surrey (Stephens) ; Richmond Park (Lewis) ; 
Purfleet (Rye) ; Orpington (Power); Norfolk, Suffolk, Devon ; Swansea; Northuin- 
berland and Durham district, very rare, Newcastle and Twizell. 
P.sexpunctatus, Pan Of a black or pitchy-black colour, with 
the forehead and scutellum clothed with white pubescence, and with a 
spot of white pubescence behind shoulders of elytra, and another 
(usually double) on each behind middle; the elytra are oblong, and 
have the shoulders well marked in both sexes; head, with eyes, as broad 
as thorax; antenne long and rather robust ; thorax longer than broad, 
granulose, strongly constricted and depressed behind middle; scutellum 
distinct; elytra subparallel, punctured in somewhat irregular rows, 
interstices furnished with rows of fine sete; legs reddish, rather stout, 
with the first joint of the posterior tarsi fully as long as the two follow- 
ing; under-side clothed with short thick whitish pubescence. L. 
3-4. mm. 
In old wood; occasionally found in houses; not common; Putney, Richmond 
Park, Forest Hill, Blackheath ; Glanvilles Wootton and Farley, Dorset; Exeter (in 
houses ; also said to have been taken in a humble-bee’s nest in some numbers) ; 
Repton, Burton-on-Trent ; Carlisle ; Scotland, Edinburgh. 
P. lichenum, Marsh. (s.g. Pseudoptinus, Reitt.). Of a dark 
fuscous or blackish colour, sometimes with a very slight subneous 
reflection, with the thorax convex, and furnished with only a very fine 
central furrow, and clothed with spots of white scaly pubescence, which 
are not very apparent except in fresh specimens; the elytra are marked 
with rather distinct wavy bands of whitish pubescence; the sexes are 
very different in appearance. L. 2-3 mm, 
Male cylindrical, with the elytra oblong, and with the shoulders well 
marked, antennsz very long, brownish, usually darker at base and 
lighter at apex ; eyes rather large ; thorax longer than broad, constricted 
at base, rather roughly sculptured ; elytra with punctured striae; legs 
moderately long, ferruginous. 
Female with the elytra oval, subglobose, the eyes smaller, and the 
antenns much shorter; the thorax is only as broad as long, and the 
sculpture of the elytra is a little finer. 
On old palings, &c.; very local, but occasionally common where it occurs; 
Mickleham, Camberwell, Wandsworth, Cobham, Box Hill, Highgate, Croydon; 
Drayton, Norfolk ; Windsor ; Glanvilles Wootton; Scotland, very rare, ‘* Raehills,” 
Solway district, Murray’ s Cat. 
