120 PROCEEDINGS OF THE NATIONAL MUSEUM vol.93 



Type locality. — Canon de Tolima (1,700 meters), Colombia. 



Remarks. — The species is represented in the National Museum col- 

 lection only by the holotype, and this is in rather poor condition. It 

 resembles inconspicua, but the general color is more testaceous and 

 it lacks the chrome-yellow on head, collar, and borders of the trans- 

 verse lines. The postmedial line of the hind wing of imperilla is 

 evenly curved and beyond the outer angle of the cell ; that of incon- 

 spicua is more nearly medial, almost straight, and passes through the 

 outer angle of the cell. 



3. NEOTHERINA CONSEQUENS (Prout), new combination 



Plate 9, Figure 28 



Nephodia (Nipteria) consequent Prout, Ann. Mag. Nat. Hist., ser. 8, vol. 6, 

 p. 524, 1910. 



Male. — Unknown. 



Female. — Similar to imperilla in color and markings. 



Alar expanse, 42 mm. 



Genitalia (fig. 28) similar to those of inconspicua but with the 

 signum flatter and broader and the margin serrate instead of spincse. 



Type. — In British Museum. 



Type locality. — Santo Domingo, Carabaya, Peru. 



Food plant. — Unknown. 



Remarks. — The species is represented in the National Museum col- 

 lection by a single specimen. Prout stated that he had seen one 

 specimen in addition to the type from the same locality. Presum- 

 ably this is the one in the National Museum, since the label indicates 

 the type locality and the specimen was a part of the Dognin collection. 



Eventually imperilla and consequens may prove to be opposite sexes 

 of one species, but until this is verified by the examination of ma- 

 terial (including both sexes) from the two regions they should be 

 treated as distinct species. 



LAMBDINA, new genus 



Genotype. — EUopia fiscellaria Guenee. 



With characters noted for the group and in addition: Antenna of 

 male bipectinate to apex. Fore wing broad with two transverse lines, 

 the transverse posterior line from costa well before apex. Hind wing 

 with a single transverse line, occasionally indistinct; veins 6 and 7 

 approximate. Male genitalia with gnathos armed with numerous 

 coarse spines; aedcagns without a distoventral bifurcate plate. Fe- 

 male genitalia with signum a broad, strongly sclerotized plate, cen- 

 tral area without spinules, margin serrate; ventral margin of the 

 genital opening not bordered by a continuous sclerotized band. 



