338 BRITISH LEPIDOPTERA. 



in some of the Micropterygids (i.e., Eriocraniids). The larva mines 

 with the venter uppermost." 



COCOON. The full-fed larva puckers the leaf in which it has 

 been mining, and, in the cavity thus formed, it constructs its pale 

 ochreous, elliptical, flat-edged cocoon, the wider end of which is 

 attached to the lower cuticle of the leaf, so that when the pupa pro- 

 trudes its anterior segments, it likewise pushes through the skin of the 

 leaf, and the perfect insect makes its appearance on the same side of 

 the leaf as that upon which the egg was laid (Stainton). 



FOOD-PLANTS. Hypericwn pulckrum, H. perforation, H. hirsutiun 

 (Corbett), H. quadramjulutn (Healy), H. tomentomm (Frey. 



TIME OF APPEARANCE. The insect is double-brooded, the imagines 

 appearing in May- June and August-, from larvae that feed from Sep- 

 tember-March and July-August respectively. We captured imagines 

 on June 23rd, 1888, at Chattenden. Miller bred imagines August 

 3rd-5th, 1856 ; Stainton, on January 29th, March 10th, November 

 28th, 1852, January 5th, March 9th, 1853, March 27th-31st, April 

 6th, May 5th, 1854, all from West Wickham, and on May 31st, 

 1850, from Wanstead. From mines obtained July 24th, 1876, at 

 Windermere, Threlfall bred imagines on August 16th of the same 

 year. Atmore bred imagines from May 15th-22nd, 1898, out-of-doors, 

 from larvae collected the previous autumn at King's Lynn. Threlfall 

 records larvae at Witherslack, July 21st and during October, 1876 ; 

 Healy, larvae on October 7th, 1858, at Highgate Wood, October 14th, 

 at Bishop's Wood (when nearly every leaf of three plants contained 

 larvae). Douglas notes that on October 19th, 1856, in Darenth Wood, 

 every leaf of the plants found was tenanted with a larva, the larvae 

 being in all stages of growth, from just hatched to full grown. 

 Stainton obtained pupae in the budding leaves in February and 

 March, 1857, in West Wickham Wood. Sand notes that the October- 

 November larvae produce imagines in May, at Nohaut, whilst Peyerim- 

 hoff observes that October larvae produce April imagines in Alsace. 

 Nolcken notes that at Strandheuschlage, every leaf of some plants 

 contained mines on September 9th, 1865, others being quite free. 



LOCALITIES. CHESHIRE : Bowdon (Edleston). DORSET : common in woods 

 in county (Richardson), Bloxworth (Cambridge), Purbeck (Bankes), Glanvilles 

 Wootton (Dale). DUBLIN: Howth (Birchall). DURHAM: Darlington (Sang). 

 ESSEX: Wanstead (Stainton). GLOUCESTER: Bristol (Stainton). HANTS: New 

 Forest (Bankes). HEREFORD : Tarrington (Wood), Leominster (Hutchinson). 

 KENT: Darenth (Douglas), West Wickham (Bedell), Chattenden (Tutt), Lewisham, 

 Beckenham (Stainton). LANCASHIRE: Manchester (Stainton), Grange, Silverdale 

 (Threlfall). LEICESTER: Market Harboro' (Matthews). MIDDLESEX: Bishop's 

 Wood, Hampstead, Highgate Wood (Healy). NORFOLK : Merton (Barrett), King's 

 Lynn (Atmore). SUSSEX : widely distributed in E. and W. Sussex, High Down, etc. 

 (Fletcher), Guestling (Bloomfield), Lewes (Stainton). WESTMORLAND: Arnside, 

 Windermere, Witherslack (Threlfall). YORK : Scarborough (Wilkinson), Doncaster, 

 very abundant (Corbett), Edlington Wood (Warren), Richmond (Sang). 



DISTRIBUTION. France : Saone-et-Loire (Constant), Nohaut, Indre 

 (Sand). Germany : generally distributed (Heinemann and Wocke), 

 Finkenkrug, Potsdam, Stettin, Halle, Hamburg (Sorhagen), Alsace 

 (Peyerimhoff), Batisbon (Herrich - Schiiffer), Frankfort - on - Main 

 (Heyden), Giessen (Frey). Russia: Pichtendahl, Strandheuschlage 

 (Nolcken). Switzerland : Bremgarten (Boll), nr. Zurich, on the 

 Miirtschenalp, at 5,000ft. (Frey). 



