214 THE ENTOMOLOGIST. 



abdomen. The newly-emei-ged beetle is pale yellow, with two 

 black spots, sometimes confluent, on the thorax, but the insect 

 does not appear to leave its burrow until it has assumed its normal 

 tint of metallic-blue or bronze, which is effected in the course of 

 a few hours. The above confirms the opinion to which I gave 

 expression at page 24 of the present volume, but it remains to be 

 seen whether or not hog-weed is the only food-plant of this insect. 

 With regard to the other species, P. cochlearice has bred as 

 usual in a watercress-bed, and also attacked some radishes in my 

 garden, but as yet I have failed to detect P. hetulce (Sharp's Cat.) 

 anywhere. — Thomas H. Hart ; Kingsnorth, Ashford, Kent, 

 July 8, 1882. 



Description of the Larva of Lj^mophlceus ferrugineus, 

 Stephens. — So little is known about the larvae of British 

 Coleoptera that I think any information respecting them should 

 be at once recorded, and therefore I send you a description of the 

 larva of Lcsmo2)hloeus ferrugineus, Steph., a species, the larva of 

 which has not hitherto been described, and which I have recentl}' 

 reared upon the cork of a bottle containing British MoUusca in 

 spirits of wine. The larvae were discovered in some numbers 

 tunnelling the cork in all directions. Long, rather narrow and 

 dei^ressed, slightly convex above, flat below, of a pale yellowish 

 white colour, except the head and last segment, which are 

 brownish yellow. Head a little broader than long, flattened, 

 sparingl}^ covered with short silky hairs, strongl}' emarginate 

 behind, anterior and lateral margins rounded, posterior margin 

 usually hidden beneath the first thoracic segment, although the 

 larva has the power of projecting the head considerably beyond 

 it ; marked with a narrow brown stripe, commencing at each side 

 of the base of the labrum and continued to the posterior margin ; 

 labrum small, nearlj^ semicircular; mandibles short, strong, and 

 simple ; labium clothed with minute hairs ; labial palpi very 

 small, composed of two joints, the second being slightly the longer 

 and thickened at the apex ; maxillte short, incurved, lobe small ; 

 maxillary palpi four-jointed, of which the first three are equal in 

 length, the fourth being narrower, and as long as the second and 

 third together; antennae formed of four joints, the basal large 

 and broad, the second much narrower and not so long, the third 

 as long as the two first, gradually thickening towards the 

 extremity and bearing a minute spinous excrescence at its apex, 



