ODONATA OF THE VICINITY OF GO HOME BAY 63 



SESSIONAL PAPER No. 39b 



Notes on the Species. 



Calopterygidae. 



1. Agrion maculatum Beauvais. 



Syn. Calopteryx maculata (Beauv.) Burm. 



A male was taken in the woods, just above the "Chute" on the Go Home 

 Hiver, July 7, 1907. A few others were also seen along the river shore. Another 

 male was seen at the "Chute" on July 22, 1912. It will doubtless be found more 

 commonly farther up the river. 



The nymph has been described by Needham ('03). 



2. Agrion aequabile (Say) Kirby. 

 Syn. Calopteryx aequabilis Say. 



This species has not been taken in the immediate vicinity of Go Home Bay 

 "but a female was captured by Dr. Huntsman near Victoria Harbour, June 25, 1907. 

 It has also been taken in Algonquin Park and I have an exuvia from Shawanaga 

 River, taken by Mr. Paul Hahn, which I believe belongs to this species. The basal 

 joint of the antennae is fully a third longer than the width of the head, this being 

 the diagnostic character given by Needham for the nymph, that he referred to 

 aequabile by supposition. In the nymph of A. maculatum, the basal joint of the 

 antennae is scarcely longer than the head is wide. These two species are the only 

 ones of this genus that occur in Ontario, so that there seems to be little doubt that 

 the nymph referred to aequabile belongs to that species, particularly as the measure- 

 ments are larger than those of maculatum, as is also the case with the adults. 



My exuvia measures as follows*: Length of body 27; gills 13.5 additional; 

 antennae 6*5; outer wing-pad 7; hind femur 10. 



Coe nagrionidae. 



Lestinae. 



3. Lestes unguiculatus Hagen. 



Rare in this vicinity. A few individuals were taken in an open marsh near a 

 small lake, on Aug. 6, 1907. 



The nymph has been characterized by Needham ('03) and the writer ('14). 



* All measurements are given in millimetres. 



