AMERICAN LEPIDOFTKRA. 27 



tends through it. Secondaries very pule, whitish, yellowish or a little smoky, 

 darkening a little outwardly: the fringes usually with a reddish shading, which 

 verges to scarlet. Beneath yellowish, pale, washed with reddish, which, in some 

 specimens, has a distinct scarlet tinge towards the margins. Most specimens 

 have an obvious dusky line on the secondaries, and a similar line is also apparenl 

 in many cases on the primaries. Expanse 1.25-1.50 in. ; 32-37 mm. 



Hub. — Colorado : Glenwood Springs, August 20th, September 

 1st (Dr. Barnes); Denver, September 12th (Oslar). 



This species differs from all others in the genus by the lengthily 

 pectinated antennae of the male. It resembles, superficially, the 

 species of the next series, and with them it has been heretofore 

 associated. Besides the unique character of the antenna. 1 , the form 

 of the genitalia excludes it, as well as the absence of the adze-like 

 thoracic tuft. The harpes of the male are narrow and quite even 

 to the slightly pointed tip. There is a short, blunt, corneous pro- 

 cess nearest to the tip, almost at the point reached by a long curved 

 process or clasper, which originates within the middle and toward 

 the lower margin. 



Hydrwcia cerinsi Grote, pi. 1, fig. 16, % genitalia. 



1874.— Grote, Proc. Ac. Nat. Sci. Phil., 200, Gortyna. 



1882.— Grote, 111. Essay. 59, pi. 2, f. 25, Gortyna. 



1893.— Smith. Bull. 44 U. S. Nat. Mus., 176, Hydrcecia. 

 Ground color a hright lemon yellow, mottled with brown. Head bright red- 

 dish brown in front, the vertex yellow, base of the collar red-brown. The pata- 

 gise are edged with brown, and the tu flings tipped in the same way. Basal line 

 geminate, broken, the space between the basal and t. a. line more or less com- 

 pletely brown rilled. The t. a. line is broken, imperfect, principally defined by 

 the edge of the brown shading. T. p. line fragmentary, consisting of an irregu- 

 lar series of brown lunules. better defined by the brown s. t. space. The median 

 shade consists of a series of brown marks and dots, which are not connected. S. 

 t. line pale, marked by the difference in shade between the terminal and s. t. 

 spaces, preceded by smoky, saggitate spots, which, in some cases, extend almost 

 through the s. t. space. The terminal space is crossed by yellow, brown and 

 smoky shadings, leaving the apex yellow. The fringes purplish brown. Second- 

 aries very pale yellowish, tending to become a little dusky toward the tip. The 

 fringes washed with reddish. Beneath a very pale yellowish, powdery, with a 

 tendency to a reddish washing along the costa. Primaries with a discal lunule 

 and a dusky shading near the outer margin. Expanse 1.40-1.50 in. ; 35 37 mm. 



Hab. — Maine; Kansas; London, Ontario; New Hampshire; 



Massachusetts. 



This species is by no means common, but is easily recognizable by 

 the bright lemon yellow ground color, the basal and extra median 

 spaces being mottled with red-brown, which shades toward scarlet. 

 Very few specimens have been seen, and there appears to be no 

 appreciable variation, even in size. 



TRANS. AM. KNT. BOO. XXVI. MAY, 1899. 



