io6 



CRABS AND INSECTS. 



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. 



FIG i26.-Spinnerets of a spi- Order m Spiders (^_ 



der. /, one of the tubular 



hairs from the spinnerets, *0). General Characteris- 

 tics. Insects having an unseg- 

 mented abdomen connected 

 with the thorax by a delicate 



magnified. (After Morse.) 



FlG. 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 

 tracheae. The young pass 

 through no metamorphosis ; 

 600 or 800 species occur in 

 North America. 



Tarantula. The Taran- 

 tula (Lycosa) is a large, hairy 



