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
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