Sphingidse 
The insect feeds in the larval stage upon various species of 
Gaura , and ranges from Georgia to Texas and as far north as 
southern Kansas. 
(2) Pogocolon juanita Strecker, Plate II, Fig. 12, $ . 
(Strecker’s Day-sphinx.) 
The moth in the general style of its maculation is very much 
like the preceding species, but is considerably larger, and the 
colors are decidedly brighter. The caterpillar is quite different 
in its markings from the larva of L. gaurce. 
The habitat of this species is Texas, so far as is now known. 
One other species of Pogocolon, P. vega Dyar, occurs in our 
region. It is much darker in color than the two former species, 
which it otherwise somewhat closely resembles. 
Genus PROSERPINUS Hubner 
Head small ; proboscis moderate or long ; antennae clavate ; 
body stout ; abdomen with or without lateral tufts, but always 
with a more or less well developed anal tuft. Anterior tibiae 
stout, armed with spines outwardly and at tip. Fore wings 
elongate, generally somewhat curved outwardly about the 
middle, and with the inner angle more or less distinctly 
produced ; more or less densely clothed with scales over their 
entire surface. The moths are diurnal in their habits, and mimic 
bumblebees in their appearance. 
(1) Proserpinus flavofasciata Walker, Plate II, Fig. 8, ? . 
(The Yellow-banded Day-sphinx.) 
The head and thorax are pale yellow, the latter obscured with 
brownish hairs about the middle. The abdomen is black with 
the basal segment about the middle and the preterminal segment 
on either side pale yellow. The fore wings on the upper side 
are blackish, crossed by an oblique whitish band. The hind wings 
are deep black, crossed by a broad orange-yellow band. The fore 
wings on the under side are bright orange-yellow at the base. 
This is always a rare insect in collections. It ranges, so far 
as is known, through British America, and southward and east¬ 
ward to Maine and Massachusetts. It is found in very early 
summer hovering over flowers. 
(2) Proserpinus clarkiae Boisduval, Plate II, Fig. 10, $ . 
(Clark’s Day-sphinx.) 
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