ANAITIS. 251 



front tibiae armed with a horny Spine at the extremity; wings 

 entire ; fore-wings pointed, with well-marked lines, and a dark 

 apical streak ; hind-wings narrower in the male than in the 

 female. 



Larva long, with distinct lines, and prominent points on the 

 penultimate segment ; living exposed on low plants. Pupa 

 soft, oblong. 



A small Family, but well represented in Europe. 



GENUS ANAITIS. 

 Afiaitis, Duponchel, Lepid. France, viii. (i) p. 350 (1830) ; 

 Guen^e, Spec. Gen. Lepid. Uran. et Phal. ii. p. 495 (1857.) 



This genus includes the largest and handsomest species of 

 the Family, one of which is British. 



THE TREBLE BAR. ANAITIS PLAGIATA. 



Geometra plagi'afa, Linnaeus, Syst. Nat. (ed. x), i. p. 526, 



no. 174 (1758) ; id. Faun. Suec. p. 334, no. 1271 (i 761) ; 



Clerck, Icones, pi. 6, fig. i (1759) ; Hiibner, Eur. Schmett. 



v. fig. 220 (1802 ?). 

 Lareniia plagiata, Treitschke, Schmett. Eur. vi. (2), p. 82 (1828). 

 Anaitis plagiata^ Stephens, 111. Brit. Ent. Haust. iii. p. 243 



(1831) ; Kirby, Eur. Butterflies and Moths, p, 359, pi. 50, 



fig. II (1882). 



The Treble Bar is common throughout Europe and Western 

 Asia. It expands about an inch and a quarter. 



The fore-wings are pale bluish-grey, with several rusty- 

 brown waved lines. The first is situated near the base, and 

 rises from a spot of the same colour on the costa. This is 

 the first bar. The second bar, which is composed of three 

 lines, passes nearly through the middle of the wings. The 

 third bar, also composed of three lines, commences mid- 



