306 BRITISH LEPIDOPTERA. 



Mr. W. H. B. Fletcher.] Sorhagen describes the cocoon as " light 

 blackish-green." 



Food-plants. — Wild apple, hawthorn and pear, very rarely on the 

 latter. 



Time of appearance. — The species is double-brooded, the imagines 

 appearing in May- June and August, from larvae that have fed up the 

 previous October and July respectively. Stainton captured an imago 

 on June 17th, 1857, atLewisham, and Threlfall has bred the imagines 

 throughout May and June, from larvae obtained at Grange the pre- 

 ceding August and September. Sang obtained mines on October 5th, 

 1861, September 26th, 1863, September 29th, 1871, October 2nd, 

 1874, September 30th and October 3rd 1878, at Darlington (teste 

 Gardner). Nolcken found larvae on September 6th, 1866, at Umbaid. 



Localities. — Cambridge : Cambridge (Warren). Cheshire : Bowdon 

 (Edleston). Durham: Darlington (Sang). Kent: Lewishani (Stainton). Here- 

 ford: Tarrington (Wood). Lancashire: Manchester (Boyd), Grange (Threlfall). 

 Norfolk : Norwich (Barrett). Sussex : Arundel Park, abundant (Fletcher). 

 Westmorland : Witherslack (Threlfall). Yorkshire : Doncaster (Warren), York 

 (Hind). 



Distribution. — Denmark : Between Brede and Lyngby (Bang- 

 Haas). Germany: Brunswick and Silesia (Heinemann and Wocke), 

 Alsace (Peyerimhoff), Wolfenbiittel (Heinemann), Stettin, Hanover 

 (Sorhagen). Bussia : Umbaid (Nolcken). 



nepticula arcuatella, Herrich-Schaffer. 



Synonymy. — Species: Arcuatella, H.-Sch., " Sys. Bearb.," v., p. 354 (1855); 

 Hein., " Wien. Ent. Monats.," vi., p. 315 (1862) ; Hein. and Sta., " Zool.," xxi., p. 

 8381 (1863); Staud. and Wocke, "Cat.," p. 338 (1871); Hein. and Wocke, 

 " Schmett. Deutsch., p. 759 (1877) ; Peyer., " Cat. Lep. Als.," ii., 2nd Ed., p. 165 

 (1882) ; Sorhgn., " Kleinschmett. Brandbg.," p. 346 (1886) ; Hering, " Stett. Ent. 

 Zeit.," lii., p. 221 (1891); Meyr., "Handbook," etc., p. 723 (1895). Arcuata, 

 Frey, "Die Tineen," etc., pp. 384-385 (1856); "Linn. Ent.," xi., p. 415 (1857); 

 Sta., "Ent. Ann.," 1858, p. 97; "Man.," ii., p. 434 (1859); "Nat. Hist. Tin.," 

 vii., p. 196, pi. ix., fig. 3 (1862); Nolek., "Lep. Fn. Est.," p. 784 (1871). 

 Arcuosella, Dbldy., "List.," p. 36 (1866); Threlfall, "Ent. Mo. Mag./' xix., 

 p. 113 (1882); Porritt, "List Yorks. Lep.," p. 172 (1886). 



Original description. — 1114. Arcuatella ( — ata), Frey. — Fusca, 

 capillis luteis, fascia alarum anter. media argentea, ante marginem inte- 

 riorem rectangulariter fracta. Der Kopf viel starker und dunkler gelb 

 behaart als bei N. basalella, die Vorderfliigel breiter, iiberall grob 

 schuppig, die dicht gestellten Schuppen schwarzlich violett, die 

 silberne Binde in der Mitte, von Vorderrande aus sehr schrag, erst 

 kurz vor dem Innenrande fast rechtwinkelig gebrochen ; das lichte 

 Ende der Franzen kiirzer, die Hinterfliigel deutlich breiter. Von H. 

 Frey aus unbeachteten Minen erzogen (Herrich-Schaffer, Syst. Bear, 

 der Schmett. von Europa, vol. v., p. 354). 



Imago.— Head reddish or ferruginous. Anterior wings 5 mm. ; 

 black ; a slender, central, silvery-white transverse fascia, contracted 

 and curved a little inwards medially ; cilia whitish- grey. Posterior 

 wings and cilia pale grey. 



Comparison of N. arcuatella with N. angulifasciella and N. 

 atricollis. — N. angulifasciella is a larger and blacker insect than 

 N. arcuatella, with a more brilliant fascia ; the latter can, however, 

 be distinguished from the former, not only by its smaller size, but by 

 the fascia being more slender, and by its outer edge being nearly 

 straight (the outer edge of the fascia in N. angulifasciella being dis- 



