108 THE CANADIAN ENTOMOLOGIST. 



The insect passes the winter in the larval condition. Galls examined 

 in December were lined with silk, which, no doubt, was a protective 

 measure against cold and moisture. 



The dates of emergence of specimens from galls collected are the 

 following : June 23, 1907, five specimens ; June 24, ten ; June 25, six ; 

 June 26, five; June 27, two, and June 30, three. 



Larva. — Length, 6-8 mm. Head black, the rest of the body light 

 yellow, except the dorsal part of the fir>t segnient. This bears a pair of 

 light brown, somewhat triangular-shaped, spots. The base of the triangle 

 is slightly indented. Four rows of very short hairs run the whole length 

 of the body, two of these rows are dorsal and two lateral. The rows are 

 composed of from 4 to 6 hairs on each segment. 



Pupa. — Length, 4-5 mm. Light brown in colour. 



Imago. — %,$' Expands 10-12 mm. Head: Colour dark brown, 

 with a bright bronzed lustre, which imparts a greenish tint. The basal 

 joints of the antennae are relatively long and much enlarged at the distal 

 end. 



Thorax : The dorsal surface presents the same lustrous bronzed 

 appearance as the head, but the ventral surface is somewhat paler in 

 colour and with a less brilliant lustre. The legs present the same colour 

 as the dorsal aspect of the thorax, but the lustre is less brilliant on the 

 inner surface. 



The fore wings show the lustrous bronzed-green of the body with 

 less brilliancy below. 'J'hey are fringed along the inner and the outer 

 margins. The fringe is light brown in colour, darkening towards the 

 outer margins of the wings. It entirely lacks the lustre of the remainder 

 of the wings. 



The hind wings are plume-like, as all the margins of the wings carry 

 the light brown fringe, which becomes darker on the outer margin. The 

 axis of the wing is of a lighter brown colour than the fringe, and presents 

 in some cases a silvery lustre. 



Abdomen : Coloured like the thorax, but the tints are decidedly 

 lighter and the lustre slightly silvery. 



I am indebted to Mr. Augustus Busck, of the Smithsonian Institution, 

 who has supplied me with the generic relations of the form. He states 

 that it is somewhat aberrant in the genus Stagmatophora, as veins 5, 6 

 and 8 are all from one stalk in the fore wings. 



Mailed March 6th, 1908. 



