506 BRITISH LEPIDOPTERA. 



the first imagines have appeared, so that the insect is on the wing 

 for a considerable time. Briggs says : " The time of appearance varies 

 from the second week in June until the second week in July, accord- 

 ing to the season, but always (in the same year) a month after the 

 true A. trifolii." In Pomerania, the larva is found in the beginning 

 of June, the imago in July and August (Hering) ; whilst in north- 

 west Germany, it first appears about the middle of June, and lasts 

 from 4-6 weeks ; in 1876, pupje were first found on June 16th, larvae 

 as late as June 21st, and the first imago on June 28th (Speyer). The 

 most remarkable date, for undoubted specimens of this usually larger 

 and later insect, is the end of May and June, given by Oberthiir, for 

 Rennes, where it occurs in fields and the rides of woods, another 

 proof of the connection between an early date and a comparatively dry 

 habitat. Elsewhere, he says, it is generally common, and found on 

 marshes near the sea, sometimes in great abundance, although at Cancale 

 it is more rare. The following references probably refer to this insect : 

 June 27th, 1864, at Tilgate ; young larvae, May 17th, 1866, imagines, 

 July, at Stowe Wood, and July, 1871, at Wimbledon (T. Briggs), 

 end of June, at West Horsley Park (Stephens teste T. Briggs), June 

 2nd-15th, 1856, at Bisterne (Oakley), July 19th, 1858, at Stonehaven 

 (E. Thomson), July 6th-13th, 1864, at Freshwater, July 29th, 1889, 

 July 5th-9th pupre, emerged July 6th-27th 1891, at Sandwich (Fenn), 

 June 16th, 1869, very early year, at Cirencester (Harman), July 31st, 

 pupae emerged till August llth, 1874, at Herm (Luff), July 8th, 

 1877, at Henley, July 19th, 1889, at Butterwood, Odiham, July 4th, 



1889, at Aldermaston, July 2nd, 1891, at Sulham (Holland), July 

 4th, 1878, at Barmouth (Sheldon), August 4th, 1880, at Oughton 

 Common, July 7th, pupaa and larvae, excl. July 9th-20th, pupae June 

 21st, excl. July 2nd-llth, 1884, at Ippolytts Common (Durrant), 

 imagines captured July 17th-18th, 1883, July 16th, 1887, imagines 

 bred July 10th, 1886, July 29th-August 3rd, 1887, nr. Studland, and 

 imagines bred June 29th-July 4th, 1893, from another locality nr. 

 Studland (Bankes), July 18th, 1884, July 7th-16th, 1887, at Sandwich 

 (Tutt), July 6th, 1885, at Upton St. Leonards (Higgs), July 3rd-14th, 

 1887, at Carmarthen, July 12th ( $ s worn) -July 25th, 1890, July 

 llth-28th, 1891, June 29th-July 13th, 1892, June Ist-llth, 1893, 

 early year, at Sketty Park, nr. Swansea (Robertson), end of July, 1887, 

 July 27th, 1888, between Sandown and Shanklin, July 20th-23rd, 

 1896, July 17th, 1897, worn, nr. Sandown (Prout), August 20th, 



1890, at Alum Bay (Raynor), July 4th, 1891, at Swanage (Bris- 

 towe), July 12th, 1891, at Aldermaston, July 8th-16th, 1892, June 

 16th, 1893, early year, common, June 15th-28th (two only on 15th, 

 common on 28th), 1897, nr. Dorchester (J. Clarke), July 16th, 1891, 

 July 16th, 1893, larvae, pupae and imagines abundant, at Gamlingay 

 (Bond-Smith), end of July, 1892, at Porthcurnow, nr. the Land's End 

 (Bowles), August 5th, 1892, at Swanage (Mackonochie), August 1st- 

 3rd, 1892, also pupae, August 6th-13th, 1894, also pupae, at Swanage 

 (Fox), July6th-7th, 1893, early year, July 26th-27th, 1894, cocoons June 

 25th-26th, 1896, cocoons June 25th-26th, 1897, commenced to emerge 

 July 13th, 1897, cocoons June 25th-26th, 1898, at Waxham (Bacot), 

 July 10th, 1894, July 6th, 1895, pupae June 27th, 1896, pupa3 June 

 30th, 1897, imagines July 23rd, 1897, at Aylsham (Freeman), July 

 29th- August 1st, 1895, at Freshwater (Page), July 6th, 1896, at 



