LETTER OF OCTOBER 29TH, 1860. 43 



veins exposed. The case is black and hard, seeming to be 

 formed of " frass" woven together solidly with silk. The 

 form is also peculiar; it is nearly conical, and resembles 

 somewhat a beetle as it is fixed on a leaf; behind there is a 

 short tail or projection turned downwards; the mouth is 

 large; and the larva has remarkably long legs. The case 

 seems to have been formed by successive additions of the 

 matter of which it is composed, and its length is only two 

 lines. On the approach of cold weather the larva with its 

 case falls to the ground. What is it? a Coleopterous 

 insect ?* 



A friend has secured for me a small number of Tineina 

 from Labrador, where he spent a portion of the summer. I 

 have not, however, yet received them from him. Another 

 collection, which I have not yet examined, has been sent to 

 me by the secretary of the Agricultural Bureau of Massa- 

 chusetts. 



A week or two before receiving your last letter, I received 

 one from Dr. Herrich- Schaffer. After referring to my 

 labours in an encouraging way, he proposed that I should 

 publish my new genera in his Nova? Spec. Lepid. Exct., and 

 desired me to send specimens of them for delineation in 

 a plate which he would give occasionally, at the same time 

 assuring me he would return their full value in European 

 genera. But as this would interfere with my intention of 

 making a Monograph of the Tineina at some future day, I 

 shall decline the offer. 



Before the opening of the next season, I hope to send you 

 another box of our Tineina, and in it I will endeavour to 

 include as many of the new genera I have described as 

 possible. Remember that I do not think you are under any 

 obligation whatever to make a return in European specimens. 

 Your remarks, if you will be kind enough to make any on 

 the species I may send, will amply repay me for the speci- 

 mens. 



* I now think this larva would probably he referable to the Coleopterous 

 genus Clythra. H. T. S. 



