1910] A Structural Study of Some Caterpillars 117 



Rhodophoia. Skin coarse and granular (Fig. 138), the coarser 

 granules much more prominent than in Feltia; frontal punctures tri- 

 secting the space between the setae ; punctures of adf rentals half way 

 between the setae; labrum hardly notched, with setae i and ii in a 

 straight line. The granular skin occurs also in Heliothis. 



Nectua Labrum with setae Hi and iv on a level, prolegs with 40 

 hooks, (c-nigrum and other unidentified species.) 



Feltia. Coarse nodular granulations; first prolegs reduced to half 

 their normal number of hooks and second prolegs slightly reduced; 

 epicrania very low, in the last stage the adfrontals reach the vertex 

 in a way similar to Zygaena. (Three stages). Fig. 108. 



Prolegs with only 10 crotchets; epicrania very short, adfrontal 

 punctures half way between the setae. An unidentified species, agree- 

 ing with Slingerland's description of Evixoa scandens. Fig. 109. 



Hadena (Trachea) turhulenta. Outer margin of front very sinuous. 

 Fig. 107. 



In Pyrophila pyramidoides, Ceramica picta and two species of 

 Leucania, there were no decided characters. The epicrania were a 

 little larger than in the preceding genera. 



Nycteolinae: Considered the type of a distinct family by some. 

 Epicrania extending above top of front 1 1-2 times its height; ep. ii 

 nearly twice as close together as i, yet distant from the adfrontals; 

 labial palpi long and slender; adfrontals broad and ill defined out- 

 wardly; ocelli small, the distance between two ocelli being much more 

 than the width of an ocellus. Body-hair long and fine. 

 Example Nycteola revayana. Fig. 111. 



Catocalinae: Like the Noctuinae, but with the anal legs length- 

 ened, or produced backward; head sometimes held horizontally; never 

 with tufted or secondary hair. 



Hind legs not lengthened ; prolegs with about 25 hooks; setae i and ii 

 of labrum at an angle of ."^O degrees to the horizontal, m and iv obliquely 

 placed and close; epicranial .setae ii low opposite adf. i and distant from 

 ep. ?'. 



Example Ingura sp. 



Anal legs somewhat lengthened, prolegs with about 25 hooks; setae 

 i and u of labrum nearly on a level ; iv higher than Hi; the two upper ocelli 

 in contact ; ep. i and ii clo.se together near vertex; epicrania extending less 

 than its height above its t(jp. 



Example Drasteria erechtea. 

 D. crassiuscula. 



Anal legs very long and produced backward, head held horizontally; 

 45 hooks on prolegs; lal^rum with setae i and u nearly on a level, Hi and tV 

 close, Hi directly above iv; frontal punctures less than twice as close to 

 each other as to the setae; notch of labrum rather shallow; clypeal setae 

 much farther apart than frontal seta and puncture; cp. i and ii close 

 together on the face. (The conical hump of C. cara lines between them.) 

 Example CatocaJa cara. Figs. 2 and 3. 



Anal legs very long; prolegs with over 50 hooks; labrum with setae 

 (■ and ii at an angle of over 45 degrees; Hi and iv distant, frontal punctures 

 decidedly clo.ser together, frontal setae high up; labrum deeply notched; 

 cp. i and ii close together near vertex. 



Example Panapoda rufimargo. 



