3 2 
NEUROPTERA. 
infe£ls, when not preffed by hunger ; fince they leave 
the carcafe entire, . 
4 
The chryfalis differs very little from the larva,, 
and like it runs with great agility in the water, de¬ 
vouring fmaller infe&s. It generally quits the water 
before it undergoes its final changement. Called by 
fome adder bolts.—See part 1. jaws, 
GENUS 2.—EPHEMERA, DAY-FLY. 
Thefe differ in many particulars from all other in¬ 
fers ; their caterpillars live in the water, where earth 
and clay feem to be their only nourifhment, for three 
whole years, the time they confume in preparing for 
their metamorphofis, which they undergo and per¬ 
form in a few moments. The larva, when ready to 
quit that ffate, arifes to the furface of the water, and 
getting inftantaneoufiy rid of his fkin, becomes a 
chryfalis. This chryfalis is furnifhed with wings, 
which it. makes ufe of to fly to the firff tree or wall it 
meets, and there fettling, in the fame moment quits 
a fecond fkin, and becomes a perfe<ff ephemera ; in 
which ffate they live a verv fhort time, fome not 
above half an hour. Their flight is flow and heavy, 
which renders them an eafy prey to fwallows, 
The antennae refemble hairs. 
When at reff the forelegs are advanced before the 
head* 
The 
