106 CRABS AND INSECTS. 
Fic. 126,—Spinnerets of a spi- 
der. ¢, one of the tubular 
hairs from the spinnerets, 
magnified. 
hibernate. In the whip-scor- 
pions the abdomen ends in 
a long whip or lash. The 
“Daddy Longlegs” belongs 
to this order, and, according 
to Phipson, some are lumi- 
nous. 
Order III. Spiders (4ra- 
neina). General Characteris- 
tics.—Insects having an unseg- 
mented abdomen connected 
with the thorax by a delicate 
Fic, 127.—Tarantula turricula (Treat) 
and its tower-nest. 
pedicel, and bearing several 
pairs of silk-producing or- 
gans—spinnerets (Fig. 126). 
They breathe by lungs and 
trachee. The young pass 
through no metamorphosis ; 
600 or 800 species occur in 
North America. 
Tarantula.—The Taran- 
tula (Zycosa) is a large, hairy 
