198 CATALOGUE OF 



Fore wings with three slender blackish bands. Length of the body 

 18 lines ; of the wings 44 lines. 



Brazil. In Mr. Saunders' collection. 



Genus 27. MACROSILA. 



Corpus crassum, longum. Caput magnum, conicum. Pro- 

 boscis longissima. Antennae setaceae, thorace paullo longiores. 

 Abdomen thorace duplo longius. Pedes longi, validi ; tibiae pos- 

 ticae calcaribus quatuor longis. Ala3 anticae longae, mediocriter 

 lata? ; anticae subacuminata?, apud costam vix convexae, margine 

 exteriore perobliquo saepissime subdenticulato ; posticae vix acumi- 

 nata?, margine exteriore integro aut vix denticulatae. Mas. — An- 

 tennae serratae. Fcem. — Antennae simplices. 



Macrosila, Boisd. MSS. 



Cocytius, p., Phlegethontius, p., Acherontia, p. et Hyloicus, p., 

 H'ubn. Verz. Schmett. 139, 140. 



Body thick, long. Head large, conical. Proboscis very long. 

 Antennae setaceous, a little longer than the thorax. Abdomen 

 tapering, about twice the length of the thorax. Legs long, stout ; 

 hind tibiae with four long spurs. Fore wings long, moderately 

 broad. Fore wings hardly convex in front, slightly acuminated ; 

 exterior border very oblique, generally slightly denticulated ; 

 second inferior vein much further from the third than from the 

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

 the second. Hind wings hardly acuminated ; exterior border 

 entire or hardly denticulated. Male. — Antennae serrated. Female. 

 — Antennae simple. 



This genus is closely allied to Sphinx, but may be distinguished 

 by the large head, and by the broader and less acute wings. It 

 contains the largest species of the Sphingidce. The colouring 

 of the body and of the fore wings resembles the colouring of lichen, 

 and generally agrees with that of Acherontia Atropos. The pro- 

 boscis of some species is extremely long. 



