346 PTEROPUORIIS ISODACTYLUS. 



stem, and assumes the pupa state on the plant. P. 

 isodactylus lives as larva and pupa within the stems of 

 Senecio. P. trigonodactylus devours the middle of the 

 seed-heads of Tussilago, drawing together the wings 

 of the seeds so as to form a sort of cocoon, in which 

 it assumes the pupa state. P. teiccrii withers the 

 young shoot of Teucrium, to feed on the drooping 

 leaves. P. blpunctidactylus, I am informed, feeds in 

 the flowers of Scabiosa succisa, and P. loewii on seeds 

 of Erythrsea centaurium. P. plagiodactylus hollows 

 out shoots of scabious, entering them at the side, but 

 becomes a pupa externally. P. fuscus eats off the 

 buds of Veronica chamsedrys, and also becomes a pupa 

 on the plant. P. pterodactylus eats the flowers of 

 Convolvulus. P. lienigianus gnaws the leaves of Arte- 

 misia, leaving one membrane and rolling up the other, 

 also making itself a tent of the leaf. P. microdactylies 

 feeds on the flowers of Eupaiorium cannabinum, but 

 enters the stem to become a pupa. P. galactodactylus 

 eats holes in the leaves of Arctium lappa, but rolls 

 back all the woolly covering of the leaf to the edge of 

 the hole as it eats, and assumes the pupa state close 

 to the surface of the under-side in one of the deep 

 depressions formed by the union of the ribs ; and P. 

 pentadactylus devotes itself to eating off the young 

 shoots and leaves of Convolvulus sepium, just as it is 

 making a start to smother our fruit bushes with its 

 luxuriance. There is all this variation in the few 

 species with which I am acquainted ; it would be 

 interesting to know something of the habits of the 

 rest. (Charles G. Barrett, 11th October, 1871 ; 

 E.M.M., December, 1871, VIII, 153—155.) 



On the 10th of May, 1872, I figured more larvae 

 mining the stems of Senecio aquaticus. These are 

 said to be the first brood by Mr. Barrett, and are 

 rather finer larvse than those described above, these 

 being perhaps the least trifle larger, the proportions, 

 structure and details all exactly similar, the general 

 colour only of the skin being a little different, these 



