316 ENTOMOLOGICAL SOCIETY 



dorsal, subdorsal, and substigmatal. The subdorsal oblique 

 shades extend from the subdorsal line on the anterior margin of 

 each segment to the dorsal line on the posterior margin. Lines 

 not mentioned in the descriptions are absent. " Bordered," 

 without qualification, means edged on both sides. The measure 

 ment of the head given is its approximate width. All descrip 

 tions are believed to be from full-grown larvae. 



1. Rhynchagrotis rufipectus Morrison. 



Head 1.5 mm., pale, heavily mottled with dark brown, which forms a 

 continuous band closely bordering the median suture and clypeus from 

 vertex to mouth. Joint 12 rather distinctly enlarged. Body heavily mot 

 tled with light and dark brown dottings, mixed with greenish laterally, 

 forming obscure dark subdorsal oblique streaks and a distinct blotch on 

 joint 13 anteriorly. All the ordinary lines lost except the dorsal, which 

 is narrow, straight, sordid white, distinct, broken only in the incisures, 

 sometimes edged with blackish there. Thoracic feet pale, leg shields 

 dusky; tubercles and setae minute, in pale rings. Spiracles dark. 



Food plant, grass. Dept. of Agriculture, No. 3503. 



2. Rhynchagrotis alternata Grote. 



Head 3 mm., pale, reticulated with brown, the curved band from vertex 

 nearly contiguous to median suture, faint below, concentric with a nar 

 rower line that runs upward from the eye. Body heavily mottled with 

 dark brown, subventral region and feet much paler. Dorsal line whitish, 

 verv narrow, broken somewhat broadly in the incisures; oblique subdor 

 sal shades dark, diffuse, paler edged posteriorly; subdorsal line obsolete, 

 just indicated by a paler shading; substigmatal band sharp above, defined 

 by a white line which undulates, passing below the spiracles, mottled 

 below with reddish-brown and shading off into the pale subventral area. 

 Tubercles and setae minute except on the feet. Spiracles black rimmed. 



Food plants, oak, hickory, etc. Dept. of Agriculture, No. 3355. 



3. Rhynchagrotis crenulata Smith. 



Head 3.3 mm., pale, reticulated with brown, the curved band from the 

 vertex distinct below and a brown patch in the clypeus ; line upward from 

 eye not more distinct than the other reticulations. Body brown, the 

 ground color pale brown, finely striate-mottled with dark brown ; dorsal 

 line pale, narrow, nearly broken down in the centers of the segments, 

 edged with black-brown in the incisures ; subdorsal line more distinct, pale, 

 on joints 3 to 12, narrow; oblique shades pale, but alternating before with 

 somewhat wedge-shaped black patches that rest on the subdorsal line; 

 sides finely mottled, obscurely streaked, the substigmatal line broad, but 

 very faint, only a shade paler than the body, sharp-edged above and be 

 low. Feet concolorous, brown. Tubercles minute. Spiracles black 

 rimmed. 



Food plants, "various plants." Alameda Co., Cal. A. Koebele, No. 

 171. 



