ANGERONA. 205 



Phalcena sordiata, Fuessly, Schweiz. Ins. p. 41, no. 791 (1775); 



Capieux, Naturforscher, xv. p. 65, Taf. 3, fig. 15 (1781). 

 Geometra cory/aria, Thunberg, Diss. Ins. Suec. i. p. 4 (1784); 



Esper, Schmett. v. p. 95, Taf. 18, figs. 1-3 (1794?). 

 Enjwmos pninaria, Treitschke, Schmett. Eur. vi. (i) p. 45 



(1827). 

 Angerona prunaria, Stephens, 111. Brit. Ent. Haust. iii. p. 172 



(1831); Kirby, Eur. Butterflies and Moths, p. 305, pi. 44, 



figs. 3-3 d (1881); Buckler, Larvse of Brit, Lepid. vii. 



pi 106, figs. 7-7b (1897). 



The Orange Moth is common throughout the greater part of 

 Europe, as well as Northern and Western Asia. 



It expands from an inch and three-quarters to two inches. 

 The male is orange, and the female pale yellow. The wings of 

 both sexes are covered with numerous blackish-brown trans- 

 verse streaks and dots, and there are similar markings also on 

 the legs and under side. In the middle of all the wings is a 

 long brown streak, which is sometimes lost in the surrounding 

 dark markings, but is seldom entirely wanting. The fringes 

 are spotted with brown. 



The larva lives on plum, sloe, elm, hazel, plantain, honey- 

 suckle, lilac, &c. 



When full-grown it is pale brown, shaded with dusky, or ashy- 

 grey, shaded with brown, with pale tubercles tipped with dark 

 brown, the largest of which, on the ninth segment, are whitish 

 on the sides. 



It undergoes its metamorphosis in a slight cocoon between 

 leaves, bound together with threads. The pupa is reddish- 

 brown, with black, or dark brown wing-cases. 



The moth appears in June and July. The specimen figured 

 illustrates the curious phenomenon called gynandromorphism, 

 sometimes met with in insects The riiiht side of this insect 



