DIALOGUE XXIII. 
PHRYGANEA, OR SPRING FLY. MYRME- 
LEON FORMICARIUS^ OR FORMICA LEO, 
OR LION ANT. 
MOTHER, The genus I shall first 
mention to-day is called pliryganea, or, 
vulgarly, spring jiy. During its larva 
state it lives in the water ; its shape is 
that of a long worm with six legs ; and 
it spins about itself a silken tube, wide 
enough to turn round in, so that it can 
put out its head at the aperture in either 
end. 
Lucy, The silken case must be so 
light, that perhaps the worm can swim 
about with its house on its back ? 
Mother, It is indeed so light, that 
the little creature cannot without some 
