LEPIDOPTERA HETEROCERA. 
199 
North America. 
The two following species belong to distinct groups of the 
genus. 
1. Macrosila Brontes? 
Cinerea ; antennae albae ; thorax nigro marginatus , lateribus alhis ; 
abdomen linea media vittisque daabus lateralibus angulatis 
nigris ; aloe anticce gutta discali alba , lineis transversis angu- 
losis interioribus fuscis exterioribus nigris , fascia exteriore 
indeterminata vittaque posiica albidis nonnunquam obsoletis , 
strigis exterioribus nigris ; posticce fuscescentes , vittis tribus 
nigricantibus. 
Sphinx Brontes, Drury , III. Exot. Ins. ii. 52, pi. 29, f. 3. 
The insect here described differs much from Drury’s figure, and 
may be a distinct species. 
a. United States Presented by E. Doubleday, Esq. 
b. North America. Presented by H. Jones, Esq. 
2. Macrosila rustica. 
Nigro-fusca aut f err ugineo-fusca, albo varia, subtusalba; abdo- 
men maculis sex lateralibus luteis ; aloe anticce f asciis duabus 
latis diffusis excisis albis lutescente variis , gutta discali alba; 
posticce nigro fuscce, maculis basalibus et posticis guttisque 
ciliaribus albis. 
, Merian , Ins. Surin. pi. 5. Sulz. Hist. Ins. pi. 20, 
f. 2. 
Sphinx rustica, Cram. Pap. Exot. iv. 21, pi. 301, f. A. Fabr. Sp. 
Ins. ii. 145, 28 ; Mant. Ins. ii. 95, 31 ; Ent. Syst. iii, 1, 366, 
33. Gmel. ed. Syst. Nat. i. 5, 2385, 93. Anon, Ins. Surin . 
225, pi. 101. 
Acherontia Chionanthi, Hubn. Verz. Schmett. 139, 1495. 
Sphinx Chionanthi, Abbot Smith , Nat. Hist. Lep. Ins. Georg . 
i. 67, pi. 34. Duncan , Nat . Libr. xxxvii. 100, pi. 5, f . 2 ; pi. 
6, f. 2. 
Cocytius rustica, Hiibn. Exot. Schmett. Lep. iii. Leg . iv. Aland. A. 
Pond . 2, f. 1,2; Verz . Schmett. 140, 1498. 
Surinam. 
