EUSTROTIA. 95 



The fore-wings are pale grey, with the margins marked with 

 reddish, and the two central lines slightly visible, curved, and 

 brownish on the inner side. Before the first line, and after the 

 second, run rows of small black dots. The two upper stigmata 

 are faintly visible ; they are slightly darker than the ground- 

 colour, and surrounded with paler, and they are separated by 

 a large square mark which extends to the costa. The hind- 

 wings are pale grey, with the borders and nervures indistinctly 

 blackish, and the fringes paler. The under side is tinged with 

 pale brick-red. 



GENUS EUSTROTIA. 



Eustrotia, Hiibner, Verz. bek. Schmett. p. 253 (1822?). 

 Hydrelici) Guenee, Ann. Soc. Ent. France, v. p. 227 (1841); 

 id. Spec. Gen. Lepid. Noct. ii. p. 234 (1882). 



Antennae short, hardly pubescent ; palpi short, arched, scaly, 

 and divergent ; proboscis short. Thorax short, rounded, and 

 thickly scaled. Abdomen obtuse and carinated in the males, 

 thicker and rounded in the females. Legs stout with long 

 spurs. Wing entire, rounded, with long close fringes ; fore-wings 

 distinctly marked, with no accessory cell ; hind- wings broad, 

 unicolorous, with the hind margin slightly waved. 



Larva slender, feeding on plants growing in swampy places. 

 Pupa contained in a slight web among grass and moss. 



THE SILVER HOOK MOTH. EUSTROTIA UNCULA. 



Phaltzna uncula^ Clerck, Icones, pi. 3, fig. 7 (1759). 



Tortrix uncana^ Linnaeus, Faun. Suec. p. 342, no. 1305 



(1761). 

 Noctua unca, Denis & Schiffermiiiler, Syst. Verz. Schmett. 



Wien. p. 91, no. 4 (1776); Esper, Schmett. iv. (2) i. 



p. 580, Taf. 164, fig. 7 (1793?); Hiibner, Eur. Schn^tt 



iv. fig. 293 (1799?;- 



