THE CANADIAN ENTOMOLOGIST. 59 



In the female then the elytra are 1. 14 the length of the body, while in 

 the male the elytra are nearly 1.21 the length of the body. 



To present this striking difference to the eye then : In the Dublin 

 specimens the ratio of the elytra to the body is, female 1.14, male 

 1.21 ; according to Saussure, female 1.02 j4, male 1.09; according to 

 Thomas, about i. 



These specimens have in several cases the black portion of the wings 

 more or less distinctly fenestrated. This marking is particularly distinct 

 in one specimen on the basal third of the wings. They all have two pale 

 bands on the inside of the femora. The elytra extend beyond the body 

 from .32 to .44 of their length. 



NOTE ON THE SAW FLY, HYLOTOMA DULCIARIA, Say. 



BY THE REV. T. W. FYLES, SOUTH QUEBEC, 



On page 38 of the February number of last year's Entomologist, is a 

 note, written by myself, concerning an injurious Saw-fly larva which had 

 appeared in abundance in the neighborhood of Quebec. I preserved 

 quite a number of the cocoons of the species, hoping to obtain the perfect 

 insect from them. Some of the cocoons were kept in a box in my study, 

 others in a tin case placed in the cellar, and yet others in a glass jar half 

 filled with moist earth. It was from the last lot only that I met with a 

 successful result. In July last two images presented themselves. The 

 insect in its perfect state is of sluggish habits. Its head and wings are 

 purple ; its thorax and abdomen yellow. It is about one inch in expanse 

 of wings. Knowing that Mr. Harrington had given much attention to 

 the Hymenoptera, I brought the insect under his notice, and he was able 

 to identify it as Hylotoma diikiaria. The description of the insect given 

 by Norton is as follows : — 



H. DULCIARIA. 



Hylotoma dtikiaria, Say. Long's Second Exp. XL, 1824, 314, V- 

 " Pale rufous ; head, wings and feet violaceous black." Length 0.34- 

 0.48. Br. wings 0.74-1.04 inch. 



$ . Antennae black, with a violaceous tinge ; nasus emarginatc, short ; 

 head, a spot on pectus and ovipositor sheaths blue-black, remainder of 

 body testaceous or yellowish-red ; legs steel-blue ; spines same color ; 



