LE1»ID0PTERA HETEROCEKA. 323 



Genus 5. NYCHIODES. 



Corpus robustum. Proboscis subobsoleta. Palpi porrecti, pi- 

 losi, caput paullo superantes ; articulus 3us minimus. Abdomen 

 alas posticas non superans. Pedes robusti ; tibiae posticae non iu- 

 crassatse, calcaribus sat longis ; tarsi crassi. Alae amplae, spissae, 

 dentata3, fimbria longa densa ; anticse apice rectangulatae, margine 

 exteriore eonvexo. Mas. — Antennae usque ad apices latissime pec- 

 tinatae. Fcem. — Antenna? simplices. 



Boarmia, p., Treit. ; Dup. ; Boisd. ; Herr.-Sch. 

 Nychiodes, Lederer, Schm. 56. Guen. Phal. i. 221. 



Body stout. Proboscis rudimentary. Palpi porrect, extending 

 a little beyond the head, pilose to the tips ; third joint very minute. 

 Abdomen not extending beyond the hind wings. Legs stout ; hind 

 tibiae not incrassated, with moderately long spurs ; tarsi thick. 

 Wings ample, stout, regularly dentate ; fringe long, thick. Fore 

 wings rectangular at the tips ; exterior border convex. Male. — An- 

 tennas very broadly pectinated to the tips. Female. — Autennae 

 simple. 



1. Nychiodes lividaria. 



Obscure cinerea, vix ferruginosa, nigro conspersa ; abdomen nigro 

 cinetum ; alee linea undulata obliqua lunulisque marginalibus 

 wigris, fascia exteriore vaga incompleta albida ; anticce linea 

 interiore arcuata nigra. 



Geometra lividaria, Hubn. Geom. pi. 26, f. 141. , 



Boarmia lividaria, Treit. Schm. vi. 1, 207, 8. Dup. Lep. Sup. iv. 



56, pi. 55, f. 1. Boisd. Ind. 197, 1565. Herr.-Sch. Eur. Schm. 



iii. 82, 218, f. 37. 

 Nychiodes lividaria, Lederer, Guen. Phal. i. 221, 332. 



a — d. Europe. From M. Becker's collection. 



Genus 6. MELANODES. 



Corpus robustum. Caput parvum, retractum. Proboscis bre- 

 vis, valida. Palpi porrecti, breves ; articulus 2us latus ; 3us mini- 

 mus. Antennae maris crenulatae, fceminae simplices. Pedes laeves ; 

 tibiae posticae non incrassatas, calcaribus longis. Alae aniplae, nigra?, 

 dentatae ; anticae vix aeutae, lineis fasciisque atris. 



Melanodes, Guen. Phal. i. 222. 



Body robust. Head small, retracted. Proboscis short, stout. 

 Palpi short, porrect, extending very little beyond the head ; second 



