THE ENTOMOLOGIST. 23 



later period when, as an angler, frequenting the Bolton and 

 Bury canal, heath grew on the off-side of the canal, above 

 Holker's Bank, the other locality where this pug larva is 

 taken. At the present time, what with coal mines, chemical 

 works, &c., the heath appears to be entirely destroyed. Is it 

 not just possible that Minutala, finding its natural food-plant 

 diminishing, has taken to Knautia arvensis, and, by so doing, 

 has produced itself in a more enlarged form? It would he 

 worth the trial to feed the heath Minutata from the egg on K. 

 arvensis, and note the result. In referring to my diary I find, 

 on October 2nd, 1870, when on a visit to Bolton, my friend 

 Mr. Porter told me of this larva, and we went and found it in 

 abundance. I have taken it since ; but not this season. — 

 Wm. Johnson; QQ, Upper Warwick Street, Park Road, 

 Liverpool, November 29, 1874. 



[I greatly desire the addition of a new British species to 

 the interesting genus Eupithecia; but I cannot think that 

 Mr. Gregson has published any characters in the ' Entomo- 

 logist' which will induce his readers to admit E. Knautiata 

 as being so. If Mr. Gregson will kindly send me for publi- 

 cation a specific description, and append a memorandum 

 contrasting the species, or, as I should say, differentiating it 

 from the most nearly-allied species, he will be doing a real 

 service to Entomology. I have received Mr. Gregson's 

 second letter on the subject, but this does not seem to meet 

 the case. I am unable to find any distinctive character in 

 what he has hitherto written; but I confess this may be 

 owing to ray imperfect knowledge of the genus. — Edward 

 Newman.] 



Unusual appearance of Cidaria Silaceata. — On the 10th 

 of December (weather being frosty) I was surprised to see a 

 fine female specimen of this moth in my breeding-cage, 

 reared from a larva obtained in the autumn. The cage stood 

 in a natural temperature; and having expected Pcecilocampa 

 Populi to make its appearance I had been looking in the cage 

 daily, so that there can be no mistake about the time of 

 appearance of C. Silaceata. — F. O. Slandish ; 402, High 

 Street, Cheltenham, December, 1874. 



Economy of A narta Myrtilli (Entom. vii. 178). — On Shirley 

 Heath, where, in former years, I have spent three or four 

 hours at a time in August and September hunting for the 



