16 Psyche [February 
is pale in color. The abdomen, greenish in color and very flexible, 
begins to move backward and forward with a pushing motion. 
Here seems to be the center of all the motion. Finally the abdo- 
men is completely extricated and pushed backward, outside the 
case. Now comes the most critical part of the process. The 
two fore legs are drawn out together, being kept parallel with one 
another. Similarly the second and third legs of each side are 
kept parallel. The second pair separate from the third pair, and 
are removed from the cases at exactly the same instant. Then 
the first and second pairs are spread out firmly on the water, or 
other support if possible, and all the effort is concentrated on the 
removal of the third pair which are much longer than the others. 
Unless an accident occurs, they will be pulled out together and 
placed firmly out backwards. Then the insect will rest quietly 
during the hardening of all the parts. The antenne of a male 
mosquito were kept folded tightly for-several hours after emer- 
gence. During all the process the pupa case rested up against 
the side of the watch glass. In one instance we moved the pupa 
case away from the glass as the process was going on, which appar- 
ently caused failure in extricating the hind legs, and death of the 
mosquito. Within the cast-off pupa case may be seen, at first, 
a large air bubble which is of service in balancing the emerging 
insect. (Nuttall and Shipley, 1907.) 
The colors of the parts of the insect as it was emerging under 
electric light were remarkable, the eyes being a deep iridescent 
green, the legs dark green, the abdomen light green with gray 
edges, and the yellowish spots of the wings becoming more and 
more distinct. Within ten minutes from the beginning of the 
process of emergence, our mosquito had spread its wings. 
