88 Journal New York Entomological Society. [Vol. xiv. 



larvre probably feed on water grasses rather than lilies. Dr. Packard 

 figures a larva without tracheal filaments and gives a number of details, 

 which it is scarcely worth while to reproduce here as his larva was not 

 bred and may not belong to this species. 



Nymphula ekthlipsis Grote. 

 Hydrocampa ektlilipsis Grote, Can. ent., viii, in, 1876. 

 Hydrocampa ekthlipsis Grote, New ch. list, No. Am. moths, 54. 1SS2. 

 Hydrocampa ekthlipsis Fernald, Smith list, Lep. Bor. Am., no. 4175, 1S91. 

 Hydrocampa ekthlipsis Hart, Bull. 111. Sta. lab. nat. his., iv, 176, 1895. 

 Nymphula ekthlipsis Hampson, Trans, ent. soc. Lond., 139, 1897. 

 Nymphula ekthlipsis Fernald, Bull. 52, U. S. Nat. Mus., no. 4490, 1 903. 



Body white, the thorax spotted with black, the abdominal segments banded. 

 Wings ocherous yellow ; a subbasal white band edged with black ; a small white dot 

 in cell, black-edged ; a white triangle on costa opposite to, and sometimes confluent 

 with a round mark on inner margin, black-edged ; discal spot large, round, joined to 

 costa, black-edged ; subterminal line white, lunate within, black-edged without ; fringes 

 spotted. Hind-wing white, black central lines remote and rather straightened, the 

 inner with a yellow basal edge ; discal mark reniform, yellow, black-edged, subdi- 

 vided ; beyond outer line a yellow area terminated in a dentate black line ; margin 

 yellow, edged with black lines. Expanse, 20 to 25 nun. 



The species is allied to N. icciusalis Walk., but the markings are 

 further modified in the same direction and are more ornate and dis- 

 tinct. The sexes are alike. 



Albany, N. Y. (Grote); Champaign, 111., July 5 (Hart). 



1 9> Amherst, Mass., " homotype " (C. H. Fernald) ; 1 Q, 

 W'estern Manitoba (A. W . Hanham) ; 15 J 1 , 18 O, Center Harbor, 

 N. H., June 23, 25, 1902 (H. G. Dyar). 



The larva is unknown. I took the adults commonly flying over 



water in reeds at the shore of the lake in company with N. icciusalis 



Walk. , but further out, so that they could not be reached from dry 



ground. 



Genus OLIGOSTIGMA Guenee. 



Oligostigma Guenee, Spec. Gen., viii, 260, 1854. 

 Oligostigma Hampson, Trans, ent. soc. Lond., 167, 1897. 



Palpi upturned, the second joint moderately fringed with hair in front and 

 reaching vertex of head, the third well developed and acuminate ; maxillary palpi 

 long and dilated with scales at extremity; frons rounded; antenna- of male usually 

 annulated ; ocelli rarely prominent ; legs long, the tibia smooth, with the spurs almost 

 equal. Fore wing with veins 3, 4, 5 from angle of cell ; 7 straight and well sepa- 

 rated from 8, 9, 10. Hind wing with the cell about half the length of the wing; 

 veins 3, 4, 5 from angle; 6, 7 from upper angle; 7 strongly anastomosing with 8; 

 the outer margin excised below apex, then lobed (Hampson). 



