LEPIDOPTERA HETEROCERA. 7 



very slightly convex ; exterior border slightly convex, moderately 

 oblique. 



1. Propachys nig riven a. 



Mas. Late rosea ; caput ochraceum ; palpi, abdomen subtus et 

 pedes eyaneo-nigra ; alee anticce venis nigris. 



Male. Bright rose-colour. Head ochraceous. Palpi, abdo- 

 men beneath and legs metallic bluish black. Fore wings with 

 black veins. Length of the body 7 — 9 lines ; of the wings 18—20 

 lines. 



a — e. North China. From Mr. Fortune's collection. 

 /. Silhet. From Mr. Stainforth's collection. 

 g. North Hindostan. From the Entomological Society. 

 h. ? Presented by E. Doubleday, Esq. 



Genus 10. DERCHIS. 



Fcem. Corpus crassum. Caput pilosissimum. Proboscis obso- 

 leta. Palpi quatuor subaequales, porrecti, lanceolati, pilosi, capitis 

 latitudine longiores ; articulus 3us 2o brevior. Antennae graciles. 

 Thorax squamosus. Abdomen alas posticas non superans. Pedes 

 laeves, sat robusti ; tibiae posticae calcaribus quatuor longissitnis. 

 Alae anticae latae, apice subrotundatae, costa subconvexa, margine 

 exteriore subobliquo; marginis interioris fimbria longissima. 



Female. Body thick. Head very pilose. Proboscis obsolete. 

 Maxillary and labial palpi porrect, lanceolate, pilose, longer than 

 the breadth of the head, almost alike; third joint shorter than the 

 second. Antennae slender. Thorax squamous. Abdomen not ex- 

 tending beyond the hind wings. Legs stout, rather long, pilose, 

 squamous; hind tibiae with four very long spurs. Wings elongate, 

 stout, moderately broad. Fore wings rounded at the tips ; costa 

 and exterior border slightly convex, the latter slightly oblique. 

 Hind wings with a very long fringe on the iuterior border. 



1. Derchis horridalis. 



Foem. Fusca ; alee anticce nigricante conspersce, macula discali 

 fusca, striga postica e squamis nigris ; posticce subobscuriores. 



Female. Brown, cinereous-brown beneath. Fore wings 

 minutely blackish-speckled ; discal spot brown ; a streak of black 

 scales towards the base of the interior border. Hind wings a little 



