Melolontha.] LAMKU.ICOKNIA. 53 



1*1. hippocastani, F. Very like the preceding, but, on an average, 

 a little smaller, and more darkly coloured ; the general pubescence is 

 thicker and of a more mealy appearance, and the hairs on the elytra are 

 thicker and almost scale-like ; the pygidium also, or rather its process, is 

 more densely pubescent and constricted at base ; in the male the third 

 joint of the antennae is thickened at apex and armed in front with a 

 sharp tooth, and in the female the first lamella of the club is shorter 

 than the remainder. L. 18-24 mm. 



On and about trees, &c. ; very local; Banks of Windermere (Stephens) ; North- 

 umberland and Durham district, Long Benton and in the woods below Gilsland, 

 not uncommon in the latter locality. Scotland, local, Clyde, Forth, Tay and Moray 

 districts ; Ireland, Roebuck and Greystones near Dublin ; it does not occur in 

 England further south than the Luke district, and in Scotland appears partly to take 

 the place of the preceding species. 



In giving the lengths for the Lamellicornia some authors appear to 

 have reckoned to the apex of the elytra, and others to apex of pygidium ; 

 hence has arisen a discrepancy in certain cases, which I cannot otherwise 

 explain. 



(Polyphylla, Harris. Although all the specimens of Polyphylla fullo 

 that have been taken in Britain are undoubtedly importations, yet as 

 they are contained in all our old collections it is scarcely possible to 

 pass over the insect without a short notice ; the genus may easily be 

 distinguished from Melolontha by the fact that the tarsal claws are 

 toothed at base, and that in the female the club consists of only five 

 lamellae.) 



P. fullo, F. (Melolontha fullo, auct.). A very large species, upper 

 surface chestnut-brown, dark brown, or almost black, clothed with 

 patches of white scales, which give the insect a variegated appearance ; 

 on the head they take the form of two liues near eyes, on the thorax of 

 a longitudinal central line and lines and marks at sides, and on the 

 elytra they are very irregular, and cause them to present a marbled 

 appearance ; the scutellum is thickly clothed with whitish or yellowish 

 scales, and the under-side is very closely pubescent, the pubescence of 

 the front part being villose ; the sculpture of the upper surface is coarse ; 

 antennae and legs lighter or darker reddish. L. 24-34 mm. 



Stephens remarks that all the known British specimens have been 

 captured on the sandy coasts of Kent, between Hythe and Ramsgate, 

 chiefly in the neighbourhood of Deal and Sandwich, at which latter place 

 eight examples were taken in July, 1815. Mr. W. Marshall, of Bexley, 

 Kent, has in his possession a specimen taken alive near Belvedere, 

 Kent ; it had certainly been imported. 



SCARABJEIDJE PLEUROSTICTI. 



In this group the abdominal spiracles, with the exception of the 

 anterior ones, are situated in the dorsal portion of the last ventral 



