6 THE CANADIAN ENTOMOLOGIST 



DRAGONFLIES OF THE LAKE OF BAYS REGION. 



BY J. MCDUNNOUGH. PH. D.* 

 Entomological Branch, Dept. of Agriculture, Ottawa. 



The period from June 28th, to July 15th, of the summer of 1920 was spent 

 by myself at Norway Point on the Lake of Bays. Considerable collections of 

 insects were made, rather particular attention being paid to the Odonata and 

 allied orders. A list of the species of Odonata taken would appear to be of 

 interest not only as a supplement to Dr. E. M. Walker's reports on the Odonata 

 of Algonquin Park and the Go Home Bay region, but also on account of the 

 fact that several species new to oiir Canadian lists were observed and the known 

 northern range-limit in such instances considerably extended. 



The Lake of Bays region is in general topography very similar to that of 

 Algonquin Park or the Muskoka Lakes. Along the shores of the Lake of Bays 

 proper few dragonflies were observed, but the smaller lakes and ponds proved 

 to be quite rich in species. The main collections were made (1) around Black 

 Lake, a small tranquil lake, just south of the Norway Point golf links, with 

 heavily wooded, precipitate shores, except at a few points at the northern end 

 where the ground was flatter and a considerable growth of sedges and water 

 lilies was to be found; (2) at a small marshy pond on the Baysville road, which 

 I have designated Brown's Brae Pond, and which I unfortunately only dis- 

 covered during the latter half of my sojourm. 



Twenty-six species in all were captured; the following list is probably far 

 from exhaustive, but will at least serve as a basis for further investigations. 



Zygoptera. 

 Coenagrionidae. 



1. Lesles enriniis Say. 



Four males of this unmistakable species were taken on -July 11th 

 among the sedges at Brown's Brae Pond. As far as can be ascertained 

 from the available literature, this constitutes a new record for our 

 Canadian fauna. 



2. Lesles rectangiilaris Say. 



One teneral male was taken on June 24th on a wooded slope rather 

 remote from any body of water. 



3. Lestes disjunctiis Selys. 



A series of more or less teneral males and females was captured on 

 July 11th and 14th around Brown's Brae Pond. 



4. Agria moesta piitrida Hagen. 



Only a single female was taken at Black Lake on July 1st. Two 

 males were captured on July 28th, 1919, on a road skirting the Lake of 

 Ba\s east of Norway Point. 



5. EnaUagma hagen i Walsh. 



Common around Black Lake and Brae Pond, June 23rd to July 



8th. A number of the males showed the fifth abdominal segment 



suffused with black for at least half its length, a feature not noticed in 



our Ottawa specimens of this species; no difference in genitalia, however, 



' *Contribution from Ent. Br. Dept. of Agr. , Ottawa. 

 January, 1021 



