A Classification of Lepidopterous Lai^vse. 213 



Family Eucleidae. 



In the most generalized forms we have only two rows of tuber- 

 cles present, the subdorsal and superstigmatal ; the substigmatal 

 row seen in the two preceding- families having here disappeared. 

 But there are two very different lines of modification in the family. 

 In the first the tubercles are retained and prolonged into fleshy 

 horns, while the setae have been modified into poisonous urticating 

 spines. This is accompanied by the development of bright and 

 gaudy warning colors. In the second line, the tubercles tend to 

 become reduced or entirely disappear, leaving the body smooth, 

 and either colored plain green or ornamented with certain other 

 colors designed for concealment. 



I will describe these larvae in detail. 



First Group. 



Adoneta spinuloides Clemens. 



Head retracted under and folded in joint 2,^ joint 2 partly under 3. 

 Head green, jaws brown, eyes black. Body flattened, rather elon- 

 gate, the sides nearly perpendicular, but not high, the back flat, of 

 nearly uniform width, but narrowed toward head and rather more 

 so towards tail. Dorsum at joint 3, 2 mm. wide, at joint 1, 3 mm., 

 at joint 12, 2 mm. Lateral region has two rows of irregularly 

 elliptical depressions, between which the body is somewhat ridged 

 with a row of rounded elevations bearing minute spines. They are 

 situated just below the spiracle on joints 3, 4, G to 12. Color green, 

 covered with minute transparent granulations. The dorsal region 

 is nearly smooth, the sunken places being represented by small, 

 rounded whitish spots. On each side is a subdorsal row of spinose 

 tubercles, one on each segment 3-13 inclusive, those oil joints 3, 4, 

 5, and 12 longer than the others and colored bright red, those on 

 joint 11 just tipped with red. Dorsal region yellow, containing a 

 broad purple band edged with crimson, of irregular outline. It 

 nearly covers the yellow on joints 3-5, being indented at each pair 

 of tubercles ; on 6 and 7 it is much enlarged ; contracted at 8, almost 

 to a line; enlarged again at 9 and 10; contracted at 11 and ends in 

 a rounded enlargement on 12. It is divided by a pale dorsal line. 



' For brevity, in these descriptions, I use the terms common among Lepi- 

 (iopterists, counting the head as "joint 1." 



