206 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. V. 



able for tlie similarity between tlie upper and lower surfaces of tlie 

 wings. 



Sal).— Bonthevn Texas, Prof. J. A. Lintner. 



Yery different from flava by the black costal border of the orange 

 secondaries and the narrower and more even hind border. Fseudanarta 

 crocea seems to me identical with H. flava, the type of which came from 

 British Columbia ; while the Texan form, collected by Belfrage and re- 

 ferred to flava by Mr. Morrison, may prove a different species. Pale 

 specimens of flava from Colorado look at first sight distinct; but all the 

 markings of the type are produced on the paler ground of the fore mngs. 



Agrotis versipellis Grote. 



Two males from Coll. Mr. Hy. Edwards, labeled ''Summit, Sierra 

 Nevada, Cal.", give an extended and hitherto unrecorded habitat for this 

 species. I do not find any variation of importance between these speci- 

 mens and my material from Maine and Canada. 



Agrotis niveivenosa n, s. 



9 . This species, which is allied to 4c-dentata, may be at once recognized 

 by all the veins on primaries being entirely striped with white. It is 

 larger than its allies, with a black streak at base below median vein ; 

 black interspaceal marks before the yellow subterminal line, which is 

 interrupted by the white veins ; a black submedian streak across the 

 median space 5 a black streak on internal margin at base ; black powder- 

 ings on cell; ground-color of median space yellow-ocher; stigmata 

 concolorous with black annuli; orbicular small, oblique ; reniform mode- 

 rate, upright, wider inferiorlj'^; median lines obliterate; terminal space 

 blackish ; a terminal black narrow line cut by the white veins ; fringes 

 dusky ocher. Hind wings pale ocher-fuscous, with diffuse terminal 

 shade; beneath ochery fuscous, immaculate. Head and thorax dusty 

 ocher, with black thoracic stripes; abdomen pale. Expanse, 36 mil. 



Hal). — Colorado. One specimen in good condition. The species can- 

 not be mistaken. The veins are broadly striped with white. 



Agrotis biclavis n. s. 



$. All the tibife spinose; antennre bru.sh-like, with the joints nodose. 

 Allied to lagena, but smaller, with pure white secondaries and fringes, 

 which beneath are slightly dusted and show an inconspicuous spot. 

 Color of primaries more like cicatricosa ; whitish gray, with a faint ocher 

 tinge. Stigmata fused; the white orbicular lying on the cell and enter- 

 ing the upright reniform, which is more angulate and less bent than in 

 lagena and centrally stained with ocherous ; the stigmata edged with 

 black, except superiorly. A black basal dash extends into the long- 

 whitish and prominent claviform, finely edged with fuscous. Median 

 lines obliterate; subterminal line indicated by a curved series of inter- 

 spaceal black marks. Veins inconspicuously and finely marked in white. 

 Beneath like hind wings, slightly fuscous on the cell. Abdomen white. 

 Thorax whitish gray. Expanse , 32 mil. 



iTrtft.— Arizona, Mr. Hy. Edwards, No. 71G8. 



