^7 8 PHRTGANEA, 
Genus III. — Phryganea. 
T hese infefts, as well as the laft, are of a fmall fixe, 
and are at firft fight eafily diftinguifhed by the antennae, 
which are longer than the thorax, or even the whole 
body. The mouth is without ipeth, but furnillied with 
four palpi ; the four wings are incumbent ; the under 
ones, when unfolded, are very broad in proportion to the 
lize of the animal that wears them *. 
There are twenty-four fpecies ranged under this tribe, 
which Lintueus has divided into two families ; the firft 
characierifed by having the fetae which fpring from the 
extiemity of the abdomen truncated like the beards of an 
ear of coi n ; and me fecond, by having the abdomen 
fin, pie, without appendices 
The phryg; ncse, before they become inhabitants of the 
air, have, like the ephemera!, been aquatic animals ; their 
apartments in the water are Angularly co'nitrudted , their 
form is that of a tube, the inward texture of which is 
£lk, while it is outwardly compofed of fand, draws, or 
chips of wood. When the aninaal within finds its chry- 
falid ftate approach, it flops up the ends of this tube 
with threads of a loofe texture, through which the water 
may penetrate, while it prevents the approach of vora- 
cious infc&s. 
The 
* Syftema Naturae, Ord, IV. gen 3. 
