221 



broods during the year, and the insect may often be found in all its different 

 states at one and the same time. It probably passes the winter in either 

 the larva or egg state, for I have taken both eggs and half-grown larva? in 

 the beginning of November. 



''In the larva and chrysalis state it is not easily detected, on account of 

 its small size and of its assimilating the color of the food-plant. The larva 

 has furthermore the habit of jerking itself away to a considerable distance 

 when disturbed, especially while it is young." Riley. 



LYTHRIA Hiibner. Plate 2, fig. 7. 



Lythria Hiibn., Verz., 300, 1818. 



Aspilates Treits. (in part), Schm. Eur., vi (i), 126, 1827. 

 Steph., Nomenol. Br. Ius., 44, 1820. 

 Dup. (in part), Lep. France, viii (v), 110, 1830. 

 Boisd. (in part), Gen. Intl., 187, 1640. 

 Lythria Steph., Cat. Br. Lep., 300, 1850. 



Lederer, Verb. Bot. Zool. Ges. Wieu, 244, 1853. 



Guen.,Pbal.,ii, 171, 1857. 



Walk., List Lep. Het. Br. Mus., xxiv, 1054, 1862. 



Front of head square; palpi slender, but more bnshy than in Hcematopis. 

 Antennas with long, sparse branches, not plumose. P'ore wings rather long; 

 costa well arched ; apex not so much produced as in Hcematopls. Apex 

 pointed, outer edge less oblique than in Hamatopis. Hind wings with a 

 slight bend; scarcely extending as far as the end of the abdomen, which is 

 long and slender in the male. Venation: costal vein anastomosing with the 

 subcostal in the middle of the subcostal cell, the latter situated entirely or 

 partly beyond the discal venules. Three very short, subcostal veins are 

 thrown off to the costa. Lower discal venule very oblique. Coloration : red 

 and brown, with blackish patches. 



In this genus, the bushy palpi, square front, thinly-branched antenna? 

 and high colors are distinguishing marks. It approaches Fidonia more sen- 

 sibly than Hcematopls. 



Synopsis of the Species. 



Fore wings not. bent ; three lines inequidistant ; hind wings beneath ash-brown L. rilevaria. 



Fore wings angulated ; three lines equidistant ; a black patch in middle of outer fourth 



of wing ; hind wings beneath orange L. snoviaria. 



Lythria rilevaria, sp. nor. Plate 9, fig. 43. 



2 <$ . — Antenna? well but thinly pectinated, the branches much as in the 

 European L. plumularia, but shorter. Palpi long, projecting far beyond the 



