248 LONGICORNIA. [ Pogonocherus: 
insects, with the elytra oval and convex, and the antennz very robust 
and comparatively short, not reaching much beyond the middle of the 
body ; the thorax is rather bluntly spined at sides; the anterior coxal 
cavities are narrowly closed behind, and the legs are rather short and 
very stout; the average size is from about 12-15 mm. 
LAMIA, Fabricius. 
This genus only contains one species, which gives its name to the 
whole family; it is widely distributed in Europe, and is found very 
locally in Britain in old willows; it is a large and conspicuous species, 
with the antenne shorter than the body, robust at base and tapering to- 
wards apex, and widely distant at their insertion ; the thorax has a strong 
spine on each side ; the anterior coxal cavities are closed behind; the 
elytra are broad, and the legs rather stout. 
The larva of Lamia textor is described and figured by Chapuis and Candéze (Larves 
des Coléoptéres, p. 245, pl. viii., fig. 1); it is broad in front and narrowed behind, 
about 40 mm. in length; head small,about a third as broad as prothorax; prothorax 
about as broad as meso- and wetathorax, and as long as these two segments and the 
first abdominal segment together; antennze very short ; mandibles strong and tri- 
angular; legs wanting; abdominal segments nine in number, with the first seven ~ 
furnished with a transverse oval furrow; anal segment very small; the larva lives in 
old willows, where it changes to the pupal state, in which it remains for rather more 
than a month before it emerges as the perfect insect. 
XZ. textor, L. A large and robust species, oblong, rather convex, 
entirely of a dull fuscous black or black colour, with the under-side 
moderately thickly clothed with yellowish pubescence; head large, 
eyes strongly divided, antenne stout, tapering to apex; thorax trans- 
verse, together with head closely rugose, with a sharp spine on each 
side; elytra broad, coarsely granulate (the granules being rather shiny), 
and scantily powdered with dots of yellowish pubescence, which in 
places are confluent, and are often more or less obsolete ; legs very stout 
and comparatively short, black, L. 18-28 mm. 
Male with the elytra subtruncate at apex, and the scutellum rather 
narrower than in the female, in which sex the elytra are obtuse at apex. 
In decaying willows; rare; Fairlight, Hastings (Butler); Hampshire; Bath and 
Bristol (in this locality it has been taken in some numbers); Barmouth; Scotland, 
local and rare, amongst sallows, Argyle and Tay districts. 
MONOCHAMMUS, Latrcille. 
The two species belonging to this genus which are reputed as British 
ave almost certainly importations ; as, however, they are retained in all 
our catalogues, I have not omitted them; the genus is a very large and 
important one, containing more than a hundred species, which are widely 
distributed from Siberia to New Guinea ; no species, however, appears to 
have been described from South America, although one or two have 
