CA.TAL0GX7E OF MOTHS. 147 



A common species everywhere. The variety Comhusta appears 

 to be equally well distributed with the type, though not so 

 abundant. Intermediate forms are very rare. 



93. X. hepatica, Hub. Clouded Erindle. 



Kylophasia hepatica. Staint. Man., vol. i., p. 200. 



,, ,, I^ewm. Brit. Moths, p. 285. 



,, ,, Barr. Lep. Brit. Is., vol. iv., p. 372. 



Hadena ,, Meyr. Hdbk. Brit. Lep., p. 132. 



Laeva. Buck., vol. iv., pi. Ixxiii., fig. 3. 



Far from a common species, though widely distributed in both 

 counties. It is not in the Twizell list ; but Mr. Finlay found 

 it in Meldon Park, though not commonly ; Mr. Maling took it 

 at Hexham and at Jesmond, where Mr. Henderson also met with 

 it ; Mr. Hedworth found it at Gibside and more abundantly at 

 Thornley ; Mr. Koss found it fairly common at Bishop Auckland ; 

 and it is given in the Manual as occurring at Darlington. I 

 never met with it myself, but Mr. Gardner bred three or four 

 in 1875 from larvse found in Hezleden Dene. 



APAMEA, Och. 



94. Apamea basilinea, Fab. Kustic Shouldee Knot. 



Apamea basilinea. Staint. Man., vol. i., p. 210. 



,, ,, Newm. Brit. Moths, p. 302. 



,, ,) Barr. Lep. Brit. Is., vol. iv., p. 380. 



Hadena ,, Meyr. Hdbk. Brit. Lep., p. 133. 



Laeva. Buck., vol. iv., pi. Ixvii., fig. 1. 



A very abundant species everywhere. I have several times 

 taken very dark, slaty -grey specimens of this insect. These 

 have occurred when we have had a sudden spell of very cold 

 weather during or just before its time of emergence, as though 

 the cold had darkened those nearly ready to emerge, in accord- 

 ance with Mr. Merrifield's theory and experiments. I noticed 

 this particularly one year when we had several days of intense 

 cold after the earlier specimens were on the wing. Before the 



