260 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



Genus PLUSIODONTA Gn. 

 1852. Gn., Spec. Gen., Noct,, n, 359. 



P. compressipalpis Gn.* 



1852. Gn., Spec. Gen., Noel., n, 359, pi. 12, f. 2, Plusiodonta. 

 1857. Wlk., C. B. Mus., Het., xn, 938, Plusiodonta. 



insitjnis Wlk. 

 1865. Wlk., C. B. Mus., Het., xxxni, 842, ? Plusiodonta. 



HABITAT. Canada to Georgia, to Texas; east of the Kooky Moun- 

 tains, June, July, September. 



The types are in the British Museum. It is one of the mysteries 

 how Walker, with Guenee!s type and figure before him, could rename 

 so prominent a species. 



Genus HYPSOROPHA Hbn. 

 1816. Hbn., Verzeiclmiss, 249. 



H. monilis Fabr.* 



1781. Fabr., Spec. Ins., n, 219, Noctua. 



1787. Fabr., Mant. Ins., n, 147, Xoi-fita. 



1793. Fabr., Ent. Syst., in, 2, 46, Noctua. 



1811. Oliv., Encycl. Meth., vm, 281, Noctua. 



1816. Hbn., Verzeichniss, 249, Hypsoropha. 



1818. Hbn., Zutraege, f. 23 and 24, Hypsoropha. 



1X57. Wlk., C. B. Mus., Het., xin, 994. HypwropJta. 



1S80. Grt., Can. Ent., xn, 85, Hypsoropha. 



HABITAT. Southern States; west to Kansas. Missouri in June. 



H. hormos Him. 



1818. Hbn., Zutraege, 10, ff. 27, 28, Hypsoropha. 

 1816. Hbn., Verzeichniss, 249, Hypsoropha horma. 

 1852. Gn., Spec. Gen., Noct., n, 403, Motiogona. 

 1857. Wlk., C. B. Mus., Het., xin, 995, Tiaunpa. 

 1880. Grt., Can. Ent. xn, 85, Hypsoropha. 



HABITAT. New York to Texas; Central States. District of Col- 

 umbia in August, 



Genus HEMICERAS Gu. 

 1852, Gn., Spec. Gen., Noct., n, 379. 



H. cadmia Gn. 



1852. Gn., Spec. Gen., Noct., n, 383, pi. 13 f. 2, Hemiceras. 

 1857. Wlk., C. B. Mus., Het., xin, 970, Hemiceras. 



obliquilinea Wlk. 

 1862. Wlk., C. B. Mus., Het., xxvi, 1695, C'omidava. 



HABITAT. Middle and Southern States. 



Walker's type is in the British Museum, while that of M. Guenee is 

 at Kennes with M. Oberthiir, Walker's species was described as 

 geoinetrid, from Venezuela, 



