A KEVISION OF THE BRITISH TORYMINA. 269 



looking, on which the insects were very easily seen ; on the hest 

 days ten or twelve were taken from this wall in as many minutes, 

 and on the 18th I found five still on it at one p.m. in full sun- 

 shine. Some of the forms are olive-green — a form which seems 

 peculiar to South Devon — whilst others approach the orange 

 tint, for which Folkestone is famous. x\ltogether about fifty 

 were taken, and it is possible to arrange them in an unbroken 

 series from the colour of the typical B. perla to the dark olive- 

 green. One fine large specimen was an exact reproduction in 

 miniature of Agriopis apnlina. 



Two visits to Dawlish were made on the 12th and 21st 

 respectively. On the 12th Callimorpha her a was just appearing, 

 and ten specimens were taken — a few in perfect condition. The 

 yellow form {flavescens) seems to have increased to nearly 40 per 

 cent, of the captures, while the intermediate orange form is 

 getting more numerous. It is possible to arrange a series 

 graduated from crimson to yellow. On the 21st only four hera 

 were taken, but it still seemed to be emerging ; the ground was 

 so thick with collectors that it was almost impossible at ten 

 o'clock to find a hedge that had not already been beaten. On 

 both days the hedges teemed with geometers, the best being 

 Zonosoma porata and Acidalia immitaria. On the 21st a single 

 specimen of Colias ediisa was taken, so fresh that it had probably 

 only just dried its wings. The afternoon was spent in the 

 warren in search of JSlesotype viiriata ; in spite of a strong east 

 wind eleven were taken, but more than half were too worn to be 

 of value. 



Altogether seventy-seven different species were taken in three 

 weeks, and many more could have been secured. 



102, Warwick Street, Eccleston Square, S.W. 



A CONTRIBUTION TOWAEDS A REVISION OF THE 

 BRITISH TORYMINA. 



By p. Cameron. 



In this paper I have only dealt with the species I have in my 

 own collection, and mainly the species I have reared. It is 

 really more a revision of the Scottish species ; for, to prepare a 

 thorough revision of the British species, it would be necessary 

 to make a critical examination of the collection of the late Mr. 

 Francis Walker, now in the British Museum. There is no 

 British list with which a useful comparison can be made ; but 

 Thomson (Hymen. Scand. iv.) records fifty-nine species from 

 Scandinavia, and Mayr, in his Monograph of the European 

 species (Verb. z.-b. ges. Wien, xxiv.), describes seventy-eight 



