OBSERVATIONS ON TINEINA. 153 



observant gall-hunter. In fact it was the protruding ends of 

 the white cocoons which led to these pupsB being found 

 at all. 



My own experience of the larva of L. decorella, from some 

 kindly sent me by Mr. Barrett two years a<^o, is that it feeds 

 and grows very slowly, and consumes the plant so extremely 

 leisurely that the natural growth of the plant almost repairs 

 the injury (reminding one of the Abyssinian cow of a distin- 

 guished African traveller), and hence by the time the larva is 

 full fed the plant will sometimes retain its normal appearance 

 and the cavity within be little larger than the larva which 

 occupies it. From the pupas I received from Mr. Dorville 

 I have bred a nice series of the imago. 



I could add many more notes from observatious kindly 

 furnished by many correspondents, but the above must suffice 

 for the present. 



The two following observations have been kindly furnished 

 to me by Baron von Nolcken during his recent visit to this 

 country: — 



'* Chalj/be (Psecadia) pyrausta. I first met with some 

 worn specimens of this species about five years ago at Pich- 

 tendahl on the island of Oesel ; I afterwards obtained finer 

 specimens, and on sending some of them to Professor Zeller 

 he confirmed my conjecture that it was the true Pyrausta 

 of Pallas. 



"The following notice, I should observe, may not be per- 

 fectly exact, as I cannot place implicit reliance on the accuracy 

 of my memory. 



" In the most forward seasons Pyrausta began to fly as 

 early as the end of April, and was already over about the 



