120 CATALOGUE OF 



tibiae with four rather short spurs. Wings long*, moderately broad. 

 Fore wings straight in front, rounded at the tips ; exterior border 

 very oblique, slightly convex, slightly excavated near the tip of the 

 wing ; second inferior vein much further from the third than from 

 the first ; third about twice further from the fourth than from 

 the second. Hind wings rounded at the tips, slightly emarginated 

 along the exterior border towards the interior angle. 



1. Cizaea Ardeni^. 



Nigro-viridis ; capitis thoracisque latera testaceo-glauca ; caput 

 subtus glauco-albidum ; antenna testacea ; thorax viitis dua- 

 bus arcuatis testaceis ; abdomen fasciis duabus abbreviatis 

 testaceis, apicem versus lutescens ; pectus ex parte femoraque 

 posterior a rufa; tibia intermedia alba ; ala antica wargine 

 testaceo-cervino, ocello guttaque basalibus testaceis, fascia obli- 

 qua testacea apud costam limpida ; postica nigro-fusca, striga 

 apud angulum interiorem testacea, margine exteriore postice 

 glaucescente. 



Sphinx Ardeniae, Lewin, Prodr. Ent. 3, pi. 2. 



a. Australia. From Mr. Strange's collection. 



b. Australia. From Mr. Stevens' collection. 



Genus 11. AMBULYX. 



Corpus sat gracile, aut vix robustum. Caput conicum, obtu- 

 sum. Proboscis longa. Antennas subserratae. Abdomen longum, 

 oblanceolatum. Pedes graciles ; tibiae posticae calcaribus quatuor 

 longissimis. Ala? angusta?, longissirnae ; antica? acuminata?, mar- 

 gine exteriore subrecto, valcle obliquo, apicem versus excavato, 

 margine interiore apud angulum interiorem concavo ; postica? mar- 

 gine exteriore emarginato? 



Arnbulyx, Boisd. MSS. 



Sphinx, p., Linn. ; Fabr. 



Pholus, p., et Amblypterus, p., Hubn. Verz. Schmett. 133, 134. 



Body rather slender or hardly stout. Head prominent, coni- 

 cal, obtuse. Proboscis long. Antennae minutely serrated. Abdo- 

 men long, oblanceolate. Legs slender; hind tibia? with four very 

 long spurs. Wings narrow and very long, especially in the typical 

 species, A. strigilis. Fore wings slightly curved in front towards 

 the tips, which are acuminated ; exterior border excavated by the 



