With more than one pair of abdominal prolegs............ 4 
With abdominal prolegs absent except on 6th segment 
Geometridae p. 14 
Two setae in prespiracular group of prothorax (A)......... 5 
7° 
A 
Three setae in prespiracular group of prothorax (A)........ 6 
Proleg-bearing segments with seta IV behind, and V below, the 
spiracle (A); crochets in a longitudinal mesoseries (B). 
(omy, | 
Wh | 
0 Iv 
WV hore v 
A B Noctuidae p. 11 
Proleg-bearing segments with setae IV and V close together below 
the spiracle (A); crochets in a continuous ring or a penellipse. 
A Pyraloidea p. 14 
