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 
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. 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 Com¬ 
stock; enlarged.) 
Fig. 592.—Woolly-bear caterpillars, Halesidota 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- 
