FOREST LIFE. 



199 



(Fig. 161) measures from three to four inches in 

 length. It feeds on hickor}', butternut, and other 

 forest trees. The moth expands from four to five 

 inches and a half. It is sulphur-yellow, banded and 

 speckled with purplish brown. 



The Regal-MOTH, atheroma regalis {Cith-c-ro' ni-a 

 re-ga'lis). — This is the largest and most magnificent of 

 the royal-moths (Fig. 162). The fore wings are olive- 

 colored, spotted with yellow, and with a more or less 

 distinctly marked band outside the middle olive. 

 The wings expand from four to six inches. 



The larva, when full grown, measures from four 

 to five inches in length, and can be recognized by the 

 ver)' long, spiny horns with which it is armed. 

 Those of the mesothorax and metathorax are much 

 longer than the others ; of these, therq are four on 

 each segment ; the intermediate ones measure about 

 three fifths of an inch in length. The larva feeds on 

 hickory, walnut, and various other trees. 



The Anisota Oak-worms. — There are several 

 smaller royal-moths belonging to the genus Anisota 

 (An-i-so'ta), the larvae 

 of which feed on oak. 



Fig. 163. — Anisota, male. Fig. T6ii.— Anisota, female. 



These larvae are more or less striped and armed with 

 spines. In the adult state the sexes differ greatly in 



