304 CRAM1HJS CONTAMINELLUS. 



Varieties occur with dark brown heads and plates 

 on the second segment ; but principally towards the 

 last (when about to pupate) these parts and the anal 

 plate grow darker, and the rest of the body lighter of 

 a dirty yellowish tint. 



The cocoon, constructed as before described, is of a 

 somewhat oval figure, its longer diameter about five- 

 eighths of an inch, and its shorter diameter one- 

 fourth. 



The pupa is a little over three-eighths of an inch 

 in length, and one-eighth in diameter at the thickest 

 part; its form is quite ordinary though the wing- 

 covers are rather long in proportion, and from them 

 the abdomen tapers to a bluntish rounded-off tip ; it 

 is of a warm brown colour, and glossy, with the abdo- 

 minal tip blackish-brown. (William Buckler, 5th 

 June, 1878; E.M.M., July, 1878, XV, 38.) 



Last year, 1885, 1 reared a few beautiful specimens 

 of this insect; and, as so much interest pertains to 

 the species just now, it may be advisable to place on 

 record a description of the larvae, which were found 

 by Mr. W. H. B. Fletcher, of Worthing, feeding on 

 either Poa maritima or P. borreri, and from whom I 

 received them on the 29th of June. 



Larva in length generally about three-quarters of 

 an inch (though one or two specimens reached nearly 

 an inch), and of the usual Grambus shape. The body 

 is cylindrical, tapering a little at the anal extremity ; 

 the head is narrower than the second segment, has 

 the lobes rounded, and is, along with the frontal and 

 small anal plate, polished ; the tubercles are large, the 

 front pair on each segment rounded, the back pair 

 linear ; the skin has a semi-transparent glossy appear- 

 ance. The ground is of a pale dingy greyish stone- 

 colour, some specimens tinged with greenish ; the 

 frontal and anal plates are of the same colour, but at 

 each side of the former, and again immediately below 

 it, is an intensely black spot ; the head is pale brown, 

 freckled with darker brown ; the mandibles are very 



