LEPIDOPTERA HETEROCERA. 1455 



1. Heteropsis TESTARIA. 



Fusco-ferruginea ; antenna fusco-nigricantes ; abdomen omnino 

 fuseo-ferrugineum; alee antica subtus flavo-ferruginece fimbria 

 cinerea ; postica fiavo-ferruginea, subtus flavo-ferrugineo 

 subfusco tinctce. 



Phalaena testavia, Fabr. Ent. Syst. iii. 2, 53. 



Aspilates Duponchellaria, Lucas, Explor. Scient. de I' Alger. Anim. 



Artie, iii. 390, 124, pi. 3, f. 10. 

 Heteropsis testaria, Guen. Fhal. ii. 510, 1747. 



Algeria. 



Genus 3. SIONA. 



Corpus gracile. Frons vix arcuata. Proboscis robusta. Palpi 

 squarnoso-hirsuti, sat graciles, fronlem panllo superames ; articulus 

 3us brevissimus. Antennae breves, non ciliatae, maris subtus velu- 

 tinae, foem. setaceae. Abdomen maris cylindricum, apice obtusum. 

 Pedes graciles ; tibiae- anticae non ungulatae ; posticae calcaribus 

 quatuor sat longis. Alae lata?, venis ssepissime obscurioribus, fimbria 

 pius minusve intercisa ; anticae productae ; posticae subacutae. 



Idaea, p., Treit. 



Schizoste^e, Hubn. Verz. Schm. 336. 



Siona, Dup. Lep. iv. 102; Boisd.; Guen. Fhal. ii. 511. 



Chesias, p., Herr.-Sch. 



Body slender. Front hardly arched. Proboscis robust. Palpi 

 squamous-hirsute, rather slender, extending a little beyond the front; 

 third joint very short. Antennae short, without ciliae, velvety beneath 

 in the male, setaceous in the female. Abdomen of the male cylin- 

 drical, obtuse at the tip. Legs slender; fore tibiae without claws; 

 hind tibiae with lour moderately long spurs. Wings broad ; veins 

 generally darker than the ground hue; fringe more or less notched. 

 Fore wings elongated towards the tips ; exterior border slightly 

 convex, rather oblique. Hind wings slightly acute. 



1. SlONA DECUSSATA. 



Albida ; alee venis fasciisque duabus exterioribus undulatis lineaqut 

 marginali fuscis, fimbria fusco punctata. Var. — Alee cervinte, 

 unicolores. 



