424 THE CANADIAN ENTOMOLOGIST 



between first and second costal spots mostly black, particularly 

 at costa and not so wide as space between third, fourth, fifth and 

 sixth spots, which are equidistant. The first dorsal spot is 

 opposite the space between the second and third costal spots, the 

 second dorsal between the third and fourth costal spots and the 

 third dorsal between the fourth and fifth costal spots; apex 

 from last costal spot and edge of dorsum to last dorsal spot black. 

 In this margin of black there is a conspicuous band of metallic 

 blue-gray scales. Cilia brown. Hind wings bronzy-brownish ; cilia 

 brown. Abdomen and legs blackish with bronzy-green reflections. 



Alar expanse 10 mm. 



Habitat: — Aweme, Man., July, 1913 (Norman Criddle). Type 

 deposited in collection of Entomological Branch, Department of 

 Agriculture, Ottawa; paratype deposited in U.S. National Museum, 

 Washington. 



As to the placing of the species in the genus Heliodines, Mr. 

 Busck, who kindly examined the specimens, states that "the species 

 may be described as Heliodines, though differing from the type of 

 this genus H. roesella Linn., of Europe, in having the apical veins 

 in forewings separate, not stalked. In this character the 

 species agrees with the closely allied genera Lamprolophus Busck, 

 and Embola Walsm., but both of these have pectinated posterior 

 tibiae and this character has probably more weight in this group 

 than the slight difference in the venation.' ' 



H. nyctaginella has smooth tibiae like H. roesella. It comes 

 nearest to H. albaciliella Busck, being nearly identical in markings 

 but much smaller and without the white cilia in the hind wings. 



During the past season Mr. Criddle sent me larvae of H. 

 nyctaginella, from which the following note was made: 



Mature Larva — Length 6 mm., dull green, darker dorsally. 

 Thoracic shield black, pale stripe in centre. Anal shield blackish. 

 Tubercles blackish each in a pale circle; single-haired; setae dark. 

 Feet pale. Head pale brown, marked outwardly with black. 



The first moth emerged July 17, and others up till July 24. 

 These specimens have been compared with the type and no ap- 

 parent variation occurs. 



