246 CATALOGUE OF MOTHS. 



399. Pterophorus trigonodactylus, Stain. 

 Pterophorus trigonodactylus. Stain t. Man., vol. ii., p. 441. 



Platyptilia gonodactyla. Meyr. Hdbk. Brit. Lep., 



p. 434. 



This is one of our commonest plumes; it is recorded in the 



"Manual" as occurring regularly at Newcastle-on-Tyne and 



abundantly at Darlington. It is common everywhere in the 



Hartlepool district wherever there is abundance of coltsfoot, and 



has also been recorded from Stockton-on-Tees, Seaton Carew, 



and Upper Teesdale. Mr. Harrison also records it as " very 



common everywhere at Birtley and neighbourhood, in two 



broods." No doubt it occurs commonly over the two counties 



wherever the food plant is abundant. 



400. Pterophorus acanthodactylus, Hiib. 

 Pterophorus acanthodactylus. Staint. Man., vol. ii., p. 441. 



Platyptilia acanthodactyla. Meyr. Hdbk. Brit. Lep., 



p. 433. 



The only records that I have for this species are that Mr. 



Sang took it at Wolsingham, Sept. 28th, 1880, and of a single 



specimen taken by myself at sugar in Hezleden Dene, October 



22nd, 1898. 



401. Pterophorus parvidactylus, Haw. 



Pterophorus parvidactylus. Staint. Man., vol. ii., p. 441. 

 Oxyptilus „ Meyr. Hdbk. Brit. Lep., p. 432. 



The late Mr. Sang recorded this species from Castle Eden 

 Dene, July l7th, 1862. I have taken it sparingly at Black 

 Halls, and commonly on a dry bank on the railway side close 

 to Hezleden Dene. Mr. Harrison in his Birtley list writes 



" odd ones." 



402. Pterophorus bipunctidactylus. Haw. 



- Pterphorus bipunctidactylus. Staint. Man., vol. ii., p. 442. 



Stenoptilia bipunctidactyla. Meyr. Hdbk. Brit. Lep., 



p. 441. 



This species is given in the " Manual " as occurring regularly 



