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 crassuin, 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. Alae anticae longae, mediocriter 
lata? ; anticae subacuminatae, apud costam vix convexae, margine 
exteriore perobliquo saepissime subdenticulato ; posticae vix acumi- 
natae, 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., 
Hubn. 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 
bv 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 Alropos . The pro- 
boscis of some species is extremely long. 
