( l^i ) 



South Dorset. They feed on the common field thistle, Cnicus 

 arvetisis, the leaves of which they blotch with innumerable 

 small circular mines. On the back, near the head end of each 

 case, is a two-lobed dark area, the weathered remains of the 

 (first?) case of the young larva. These larvae exhibited will 

 hybernate, change to pupa in late spring, and emerge during 

 the summer. But whether they have passed last winter as 

 larvse, which the indications of the young cases would seem to 

 suggest, has not yet been ascertained. 1 found three cases of 

 the species at Bromley a few days ago, and Mr. Sich has sent 

 me one from Chiswick. 



" C. alticolella. — For this species I am indebted, through Dr. 

 Chapman, to the kindness of Dr. Wood of Hereford, who sent 

 me a considerable number. The larva feeds on the seeds of 

 Juncits lampi'ocarpus, and in the young stage mines into a seed, 

 excavates the whole of the contents and uses the empty shell 

 as a case. It then drills a hole, at or near the attachment of 

 the seed, and walks off with it to the next one, into which it 

 bores. This seed-case becomes too small for its tenant in due 

 time, and the larva lengthens it by the addition of a silken 

 tube with a three-flapped anal opening, this added part being 

 much lighter in colour. 



" C. fuscocuprdla. — I am also indebted for this species to Dr. 

 Wood, who a few days ago sent me the three cases and larvae 

 which I exhibit. The larva blotches the leaves of nut in the 

 autumn, and makes a case curled downward to such an extent 

 that the anal opening in the matured case almost touches the 

 bellied portion. The back and sides of about one quarter of 

 the length of the case, commencing just above the neck, are 

 covered by a comparatively large bunch of leaf-cuttings, with 

 the result that most of the frass extruded from the anal 

 opening is retained in the kind of chamber between the case, the 

 anal termination and the overhanging carunculated appendages. 



" C. arteinisiella. — This species I found last month in abund- 

 ance by searching the Artemisia maritima, which grows on the 

 retaining walls, on the banks of the creeks of S.-W. Essex. 

 These cases are, when first obtained, extremely mealy, from 

 the pollen of the flowers and the woolly epidermis of the 

 food-plant. When most of this mealiness is removed they 



