266 



JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 12 







. 33 



Fig. 13. Comparison of structures, Pyrausta nubilalis and P. penitalis. 27, P. 

 nubilalis, left side, dorsum fourth aHdominal segment, /, seta I; // seta II; b, clear 

 spaces; s, spiracle; s. p., sensory pore?; 28, same segment, P. penitalis; 29, P. 

 nubilalis, cephalic aspect of head, adf. adfrontal area; adf. I, adf. II, adfrontal setse; 

 ad/, p. adfrontal puncture; P, large seta of epicranium; aw<. i,-ow(. .^, anterior setae; 

 ant. p., anterior puncture; v. t., vertical triangle; 30, P. penitalis, cephaUc aspect 

 of head; 31, P. nubilalis, abdominal segments, 8-10; 32, P. penitalis, same segments; 

 33, P. nubilalis, skin sculpturing, upper half from between setse of dorsum, fourth 

 abdominal segment; lower, from below spiracle; 34, P. penitalis, skin sculpturing 

 from same locations; 35, sensory pores? enlarged. 



