LEP1D0PTERA HETEROCERA. 1451 



9. LlTHOSTEGE INFUSCATA. 



Pallidissime Jlavescente-fusca ; alee anticce acuta, apud marginem 

 exteriorem subobacuriores ; posticce albidce, Jlavescente-fusco 

 vix tinctce, 



Anaitis infuscata, Eversm. Bull. Soc. Imp, Nat. Mosc. 1837,63; 



Faun. Volg.-Ural. 435. 

 Lithostege infuscata, Guen. Phal. ii. 505, 1741. 



Sarepta. 



Genus 5. CHESIAS. 



Corpus gracile. Frons valde convexa. Proboscis brevis. Palpi 

 lati, contigui, rostri formes, subsecuriformes, squamoso-hirsuti ; arti- 

 culus 3us brevissimus. Antennae glabrae. Abdomen sericeum, laeve, 

 supra depressum, subtus excavatum. Pedes sat robusti ; tibiae anticae 

 brevissimae, cornu apicali robusto acuto ; posticae calcaribus quatuor 

 sat longis. Alae sericea?, integrae, amygdaliformes ; anticae lanceo- 

 late, lineis bene determinatis ; posticae rotundatae. 



Cbesias, Treit. Schm. vi. 1, 330; Dup.; Boisd.; Steph. ; Curt.; 



Guen. ; Herr.-Sch. 

 Eucestia, Hubn. Verz, Schm. 322. 



Body slender. Front very convex. Proboscis sbort. Palpi 

 broad, contiguous, rostriform, subsecuriform, squamous-birsute ; third 

 joint very short. Antennae simple, smooth. Abdomen silky, smooth, 

 depressed above, excavated ; tip abruptly acuminated in both sexes. 

 Legs moderately stout ; fore tibiae very short, with a robust acute 

 apical claw ; hind tibiae with four moderately long spurs. Wings 

 silky, entire, almond-shaped. Fore wings lanceolate, with distinct 

 lines. Hind wings rounded. 



1. Chesias spabtiata. 



Subcervina ; alee anticce schistaceo varice, vitta subcostali suboch- 

 raceo-albida, linea submarginali albida denticulata ; posticce 

 subcervino-albidce. 



Phalaena spartiata, Fabr. Ent. Syst. iii. 2, 181, 188. Donov. Brit. 



Ins. x. pi. 342, f. 2. Fucssl. Arch. ii. pi. 11, f. 1—6. 

 Geometra spartiata, Bork. Eur. Schm. v. 569, 319. Hubn. Geom. 



pi. 36, f. 187. Haw. Lep. Brit. 339. 

 Eucestia spartiata, Hubn. Verz. Schm. 322, 3109. 



Q2 



