222 
SPHINX. 
MHth rows of squarish black spots, and is often seen 
feeding on various meadoAv plants and grasses: it 
does not undergo its change under ground, but 
encloses itself in an oval shining yellow web of 
silk, attached to the stem of some grass, &c. In 
this it changes into a chr3"salis, out of which in 
about the space of three weeks emerges the com- 
plete insect. 
Others of the smaller Sphinges are remarkable 
for having the wings in a considerable degree 
transparent : of this kind is the Sphinx apiformisy 
which is of an aspect at first sight more resem- 
bling that of a wasp or hornet than of a Sphinx, 
the wings being transparent with merely a slight 
edging of brown, and the thorax and abdomen 
varied with black and yellow. The caterpillar 
inhabits the hollows of Poplar, Sallow, Willow, 
and Lime trees, feeding on the substance of the 
bark; changing to a chrysalis in April, and the 
Fly appearing in the month of June. 
Sphhix crabroniformis is so much like the former 
as scarcely to be distinguished from it, and in- 
habits the hollows of the Sallow and other Willows, 
feeding on the wood: it changes to a chrysalis in 
May, and the Fly appears in July. 
