168 SERRICORNIA. [ Tillus. 
broadly red, and a whitish or whitish-yellow fascia on each behind 
middle, which hardly reaches suture ; head large, finely punctured, 
antenne black, strongly serrate; thorax longer than broad, strongly 
narrowed just before base, finely punctured ; elytra with rows of coarse 
and strong punctures, which become obsolete behind middle, apex nearly 
smooth ; legs black. L. 5-6 mm. 
In old timber ; occasionally found on fresh oak palings; very rare; taken in some 
small numbers by Mr. 8. Stevens in 1879 on fresh oak palings at Biggin Hill, Upper 
Norwood, and also in the two succeeding years. Hertford and Windsor (Stephens). 
Mr. S. Stevens’ specimens were found in company with Teretrius picipes and 
Lyctus brunneus, and most of our collections owe these three species to his 
liberality. 
CLERIVA. 
The members of this tribe are very numerous; as far as outward 
appearance goes they bear a somewhat close resemblance to the Tillina, 
but are distinguished by having the first joint of the tarsi covered by 
the second, and only visible if viewed sideways ; the antenn are more 
feebly serrate, and the last joints have a greater tendency to form a 
club ; the eyes are emarginate in front; the palpi are variable in shape ; 
five European genera belong to the tribe, of which three are usually 
recognized as British, and a fourth, Trichodes, has certainly oceurred in 
Britain on several occasions, and seems to have almost, if not quite, as 
good a claim to admission as indigenous as Tarsostenus ; as, however, 
Mr. Gorham is of opinion that the two species which have been found 
in Britain (7. alvearius and T. apiarius) are strictly Alpine insects, I 
have only included them doubtfully ; there seems to be very little 
generic difference between Opilo and Tarsostenus, and as regards the 
distinctions usually given there seems to be some contradiction among 
different authors. 
I, Antenne rather gradually thickened towards apex with 
a loose and not abrupt club. 
j. Last joint of maxillary and labial palpi more or less 
strongly securiform. 
1. Eyes more strongly granulate and mcre prominent ; 
first joint of tarsi very short, second to fourth 
joints with emarginate soles . . - « + + + 
2. Eyes less strongly granulate and less prominent ; 
first joint of tarsi rather more distinct, second to 
fourth joints with very short, almost entire soles . TARSOSTENUS, Spin.* 
ii. Last joint of maxillary palpi slender and not securi- 
Pai Led-wNUSRLD Date cede lial). .ptieles "Ay eye A ART dae, 
Orito, Latr.* 
* I cansee no satisfactory characters on which to separate these genera ; the charac- 
ters derived from the eyes are very unsatisfactory, and in some points the different 
species of the two genera appear to differ inter se; in our single species of Opi/o, 
for instance, the maxillary palpi have the last joint dilated and hatchet-shaped, 
whereas Dr, Horn separates the American species of Opi/o from Tursostenus, ou the 
grouud that the “last joint of the labial palpi alone is dilated.”” 
