234 Proceedings of the Royal Physical Society. 
Further characters of the larve were looked for to provide means of 
identification. These are presented by the forepart of the head, especially 
the epistome, the clypeus and the labrum. 
The following classification is based on these characters :— 
A.—Feet five-jointed. Epistome rigid and stouter than the clypeus. 
1. Clypeal region of the anterior border of the epistome depressed. 
(a) Lateral regions divided in two by a slight depression. Median 
(clypeal) region bearing four bristles at its extremities and 
a pair lying between these. Labrum with numerous spines 
on each side of the median line . : . £. mollis. 
(0) Lateral regions divided in three by two depressions. Clypeal 
region bearing five lateral bristles and two sets of three 
median bristles. Labrum with only two or three spines on 
each side of the median line : : A, panicewm. 
2. Clypeal region of anterior border of epistome raised. 
(a) Lateral regions divided in two by a slight depression. 
(z.) One lateral bristle at each extremity of the median 
region ; 2 . P. pectinicornis, 
(w.) Numerous bristles extendite ae the whole of the 
median region ° : X. tesselatum. 
(6) Lateral regions not divided. Two pairs of lateral bristles 
A. domesticum. 
&.—Feet three-jointed. Epistome flexible; less stout than the clypeus. 
1, Clypeus twice as broad as long; the posterior border a simple 
curve ; ; . Lyetus brunneus. 
2. Clypeus not twice as Jgtade as (one: narrow posteriorly and widening 
anteriorly ; : : : . L. canaliculatus. 
GENERAL NOTES ON THE LARVA. 
Anobium domesticwm (Fig. 1). This larva has already been described. 
The following points may be given in regard to it:—Length 6°7 mm. The 
spiracles are extremely difficult to detect, more especially the abdominal ones. 
Adult and larva attack both coniferous and hardwooded timber. Beech 
wood appears specially prone to attack. A. domesticwm is the beetle most 
commonly found in furniture. : 
Anobium paniceum (Fig. 18). Length 56 mm. ° Similar to 4. domesticum 
but with smaller spinules. In this larva the spiracles can be more readily 
made out although careful scrutiny is still necessary. Sharp (loc. cit.) states 
