LEPIDOPTERA. 
333 
The Modest Sphinx, Marumba modesta (Ma-rum'ba 
mo des'ta).—It was, probably, the quiet olive tints in which 
the moth is chiefly clothed that suggested the name modesta 
for it, but it is one of the most beautiful of our Hawk-moths. 
The body and basal third of the fore wings are pale olive; 
the outer third of the fore wings is a darker shade of the 
same color ; while the middle third is still darker (Fig. 409). 
Fig. 409 —Marumba modesta . 
The hind wings are dull carmine-red in the middle; there 
is a bluish-gray patch with a curved black streak over it 
near the anal angle. The larva feeds on poplar and cotton¬ 
wood. When full grown it is three inches long, of a pale 
green color, and coarsely granulated, the granules studded 
with fine white points, giving the skin a frosted appearance. 
The Twin-spotted Sphinx, Smerinthus geminatus (Sme- 
rin'thus gem-i-na'- 
tus).—This exquis¬ 
itely colored moth 
expands about two 
and one half inches. 
The thorax is gray 
with a velvety dark 
brown spot in the 
middle. The fore 
wipgs are gray, with a faint rosy tmt in some specimens, 
