THE CANADIAN ENTOMOLOGIST. 339 



Parthenice. — A female moth was found on a blade of grass, at Meach 

 Lake, near Ottawa, by Mr. C. H. Young, on Aug. 27, 1903. About 375 

 eggs were laid on the 29th and 30th. These were handed to the writer, 

 along with the female moth. 



The eggs were laid loosely like those of other species of the genus. 

 Width at base 0.75 mm.; height same as width. The young larv?e hatched 

 on Sept 12, 13 and 14, and were fed on plantain and dandelion. 



Stage I. — Length 3 mm.; after feeding pale greenish. Head 0.35 

 mm. wide, black on cheeks, clypeus pale brown. Thoracic shield almost 

 concolorous with tubercles. On each segment of body is the usual row of 

 transverse tubercles. These are black, i very small, ii the largest, iii nearly 

 as large as ii, but more elongate ; all surrounded with reddish brown, the 

 red particularly apparent at the close of the stage. Bristles finely barbed, 

 those from the dorsal tubercles black ; others silvery. Spiracles very 

 small, black, close in front of tubercle iv. Thoracic feet pale, translucent; 

 prolegs darker. 



Many of the larvae passed the ist moult on Sept. 16. 



Stage II. — Length 3.5 mm. Head 0.6 mm. wide, blackish, clypeus 

 pale. Li general the larva are pale brown, the food showing through 

 giving- the body a greenish tinge. In this stage there is a pale dorsal 

 stripe. The skin between tubercles ii and iii is also pale, giving 

 the appearance of a lateral band. The venter is paler than the 

 dorsum. Towards the end of the stage the skin changes to a dull reddish 

 brown. Bristles from dorsal tubercles black, from lateral and ventral 

 tubercles silvery. Feet almost concolorous with venter. 



On Sept. 23 a number of the specimens passed the 2nd moult. • 



Stage III. — Length 5 mm. Head o.S mm. wide, blackish, shiny ; 

 mouth-parts reddish. Body dark brown ; skin immediately between 

 tubercles ii and iii, iii and iv slightly reddish, below tubercle iv paler. 

 Dorsal stripe flesh-coloured. Tubercles black, i very small ; base of ii 

 shining. Bristles faintly barbed, from dorsal and upper lateral tubercles 

 all black, lower bristles silvery. Long bristles from dorsum of segments 

 12 and 13. Spiracles small, black, round. Thoracic feet black, shiny ; 

 prolegs dark exteriorly. 



Some of the larvae moulted again on October 5, and others soon 

 afterwards. 



Stage IV. — Length 8 mm. Head i.o mm. wide. The larvae in 

 general are blackish, with tufts of short black bristles. Under a lens the 



