ART. 13 SOME AMEKICAN MOTHS HEINRICH 5 



Remarks. — Described from reared female type (August 5, 1924, 

 Henry Bird). Mr. Bird has kindly supplied the following biological 

 note: 



In a survey for Papaipenia larvae through a portion of Colorado, in 1924, 

 thistles were considered a possibility and a large number were examined. The 

 only flagrant lepidopterous infestation noted was at Gunnison, where a large 

 species, seemingly a Cirsiutn of the undulata group, but not yet in flower, was 

 infested by Pyralid-like larvae, six or eight often mining a single stem. Their 

 operation causes the top of the plant to blacken and droop, easily ad%'ertising 

 infestation. Because of the apparent localization, breeding the moth seemed 

 desirable. 



The larvae were active, with tubercles prominent, spinning random strands 

 which helped to retain the frass in the hollow stem at the workings. 



Being moist, this residue furnished medium for a dipterous larva, while 

 a hymenopterous species, in puparium, was noted to have worked as primary 

 parasite, undoubtedly upon the miner. Subsequently a sample of both these 

 associated species was reared." ' 



The moth is easily distinguished by genitalia and pattern. It 

 fits equally badly in Platyfes and Chilo. The front is neither evenly 

 rounded as in typical Platytes nor conically produced as in Chilo 

 but projects forward and downward. The costa of fore wing is 

 different also, being slightly convex toward apex. The species prob- 

 ably deserves a new generic designation, but this can wait upon the 

 discovery of the male. 



Subfamily PYRALINAE 



AGLOSSA FURVA, new species 



Plate 4, Figures 13, 14 



Description. — A moderately sized species with dark fore and hind 

 wings. 



Antenna ocherous shaded above with blackish fuscous. Palpus, 

 head, and thorax blackish fuscous more or less spotted with ocherous. 

 Fore wing blackish fuscous with an angulate transverse band from 

 costa beyond base and reaching almost to dorsum, a rounded ocherous 

 black-centered spot near end of cell, a rather conspicuous ocherous 

 spot on costa before apex, and a faint purplish ocherous shading 

 toward tormen; cilia smoky, but slightly paler than dark ground 

 color of wing. Hind wing blackish-smoky-fuscous; cilia slightly 

 paler with no dark basal band. 



Genitalia figured from male type and female paratype (the latter 

 from Vancouver Island). 



Alar expanse. — 23 to 28 mm. 



Type and paratypes. — U.S.N.M. No. 43255 ; paratypes also in col- 

 lection of John F. Clarke. 



^ The (lipteron has been determined by C. T. Greene as SphaeropJioria sulphuripes Thorn- 

 sou ; and the hymenopterous parasite by R. A. Cushman as Amhlyteles sp. 



