64 



front of each proleg. Anal shield smooth, reddish brown, 

 with a few long brown hairs ; spiracles dark brown. Ventral 

 surface paler than the dorsal. Length of full-grown larva, 

 .6 to .8 of an inch; greatest width, .1 inch. 



Pupa. Pupa smooth, shining, pale brown; abdomen a 

 little darker, without hairs or spines ; abdomen with an 

 obtuse horny tip. Length, A inch; width, .1 inch. 



CKAMBUS LUTEOLELLUS. (Plate IV., fig. 5.) 



Crambus luteolellus Clem., Pr. Ph. Ac. Sci., p. 203 (1860). 

 Crambus duplicates Grote, Can. Ent., Vol. XII., p. 79 (1880). 

 Crambus luteolellus Felt, Grass-eating Ins., pp. 61, 82 (1894). 

 Crambus holochrellus Zell. (Manuscript name ?) 



Expanse of wings, 20-26 mm. Palpi pale yellowish, 

 dusted externally with fuscous ; head and thorax ochreous 

 yellow. Fore wings ochre-yellow, dusted more or less 'with 

 ashy scales, especially outwardly ; median line rather broad, 

 yellow, very indistinct, running from the end of the cell 

 to near the middle of the hind margin ; subterminal line 

 nearly parallel with the median, forming an outward tooth on 

 the fold ; both lines often obliterated. Terminal line very 

 indistinct, sometimes consisting of only a row of points. 

 Fringes concolorous with the end of wing. Hind wings 

 fuscous ; fringes much lighter. 



This species is very perplexing because of its variability ; 

 some specimens before me are clear ochre-yellow, without 

 markings of any kind, and there is every gradation between 

 this and those with the median and subterminal lines well 

 marked. The outer margin also varies more or less in form 

 from straight to emarginate. 



Habitat. Ontario, Maine, New York, North Carolina, 

 Illinois, Missouri, Colorado, Arizona, California. Food, 

 grass. 



* ' Egg. A light rufous color when first laid. Form ellip- 

 tical oval ; size, .42 by .3 mm. There are about fourteen 

 prominent longitudinal ribs and numerous smaller trans- 

 verse ridges." (Felt.) 



