The Moths and Butterflies 



411 



and metallic deep-bluish body, or which have the fore wings marked 



by a few conspicuous longitudinal 



yellowish lines as in C. venosa, found 



in Colorado, New Mexico, and 



Texas. Scepsis fulvicollis, found in 



the eastern and Mississippi Valley 



states, has subtranslucent smoky 



wings with a region clear of scales 



in the middle of the hind wings; its 



prothoracic collar is yellow and its 



abdomen metallic blue-black. 



The "woolly-bear" caterpillars 

 (Fig. 592) and the tiger-moths, which 

 are the same insects in different 

 growth stages, are among the most 

 familiar of caterpillar and moth 

 acquaintances. They belong to the 

 family Arctiidae, represented in this 

 country by a hundred and twenty 



a a 



FIG. 591. Venation of a Zygaenid, Ctenucha 

 virginica. cs, costal vein; sc, subcostal 

 vein; r, radial vein; m, medial vein; c, 

 cubital vein; a, anal veins. (After Corn- 

 stock; enlarged.) 



species of which surprisingly many 

 are pretty well known to any ardent collector. The strikingly colored, 

 spotted, and banded wings of the stout and hairy-bodied moths and the 

 dense clothing of long strongly colored hairs characteristic of most of the 



FIG. 592. Woolly -bear caterpillars, Halisidota sp., all three of the same species but 

 showing variations in extent of the black markings. 



larvae are the recognition-marks of the family. The moths, too, are 

 mostly fairly large and are readily attracted by lights, while the cater- 



