The following British species may be tlivided into three 

 sections. 



* Thorax not crested : antenncE pectinated in the males. 



1. trepida ^sp. — serrata Thunb. — Wood, pi. Q.f.'dl. — tremu- 

 lus Hah. — tritopha Hatso. Don, 10. 359. 



June, July, Aug., trunks of oaks, Norfolk, Richmond Park, 

 Coonibe, Birch, and Darent Woods. 



2. dromedarius Linn. — Curt. B. E. 739 ? , var. — tritophus 

 Fab. — dromedarius Haw. var. — Zebu Don, 12. 397. 1. — 

 perfusca Step. Wood, jjl. 5. f. 25. is only a dark variety, 

 taken near Dublin. 



The beautiful variety figured was given to me by Mr.T.Des- 

 vignes: it was bred with a considerable number perfectly like it, 

 by Mr. Baugh and Mr. Murch, from larvae found on poplars 

 in the forest of Weir in Worcestershire ; they were full grown 

 in Aug. and Sept., and the moths appeared in June. The 

 caterpillar of the common variety, which becomes reddish 

 when it is about to change to the pupa, is copied from Hiib- 

 ner. The moth has been found in June and August on oaks, 

 in Cheshire, Suffolk, Norwood, Coomb Darent, &c. 



3. perfusca Haw. — Harris Expo. t. \2>.f. 5. represents a moth 

 not only different in colour to dromedarius, but it has 2 promi- 

 nences on each wing : he says " the head, thorax, and abdo- 

 men are of a dirty brown, having somewaves of a lightish 

 hue crossing them. On the slip edge are tiw small promi- 

 nences or angles. The inferior wings are almost white, and 

 totally plain ; the abdominal corners are as if scorched." It 

 was taken in May. 



4. Ziczac ZyzVz?i. — Don, 4. 119. — Wood, J". 26. May, June, 

 July, trunks of poplars and willows, Yorkshire, Norfolk, 

 Coomb and Darent Woods. 



** Leiocampa Ste. Antenna slightly pectinated in the fe- 

 male. 



5. Tremula Linn. Faun. Suec. — dictaea Linn. — Wood,/. 27. 

 — trepida Don, 7. 239. 1. June and August, on poplars, 

 sallows, and birch. Coomb, Darent, E[)ping, Dover, Nor- 

 folk, and Yorkshire. 



G. diotaeoides Esp. — Wood,/. 28. — Gnoma Fab. July, Coomb 

 and Darent woods, on the same trees as the last. 

 *** LOPHOPTERYX Stc. Thorax crested behind. 



7. Carmelita Esp. — Wood,/ 3 1 . — capucina Hilb. Beginning 

 of March, Birch-wood, in the British Museum and the 

 Zoological Society. 



8. Cuculla Hub.— Don, 10. 338. \.— Wood,/ .30. June, 

 Darent, end of July, oaks, near Erith, Kent. 



9. Camelina Linn.— Wood,/ 29.— Don, 6. 183. — Capucina 

 Linn. End of April, May, and Aug. Kensington Gardens, 

 Hampstead heath, and Shotovcr near Oxford, on oaks. J. C. 

 Digitaria Jiumi/usa, from Weybridge Common, was commu- 

 nicated by W. W. Saunders, Esq. 



