THE OTTAWA NATURALIST 



VOL. XXII. OTTAWA, JUNE, 1908. No. 2 



THE DRAGONFLIES (ODONATA) OF THE OTT.WV.-V 



DISTRICT. 



By E. M. Walker, B.A., M.B., Toronto. 



(Continued from April Number) 



Since the first part of this paper appeared Dr. Fletcher 

 has sent me another small collection of Odonata made at Ottawa 

 some years ago by Mr. T. J. Maclaughlin. The specimens are 

 largely destroyed by museum pests, but are, for the most part, 

 determinable, and among them are three genera and six species, 

 which I had not seen before from this region. These, together 

 with a specimen of Lesies rcctangtdaris , which was overlooked 

 in preparing the first part of the paper, increase the list of 

 Ottawa Dragonflies from 47 to 54 species. 



I have also received from Dr. Fletcher a copy of Vols. 

 I-II of the Transactions of the Ottawa Field Naturalists' Club, 

 which contains a paper by Mr. Maclaughlin on Ottawa Dragon- 

 flies (Vol. II, 1887, pp. 329-342). The species mentioned in 

 this paper were determined by the Abbe Provancher, but it 

 contains some obvious errors, which may be noted here. 



The description of Calopteryx virginica, Drury, evidently 

 refers to the female of C. aeqiiabilis. C. virginica is in fact a 

 S5^nonym of C . aequabilis . 



Of Lestes two species are mentioned, unguiculata and 

 eurina. Two male Lestes in Maclaughlin's collection bearing 

 these specific names respectively, both belong to L. jorcipatus. 

 A female of L. uncatus is the only other Lestes in the lot. His 

 Agrion Hageni is evidently Argia ptitrida, while Agrion putridum 

 refers to one of the smaller Agrionidae. ^4. durum and civile 

 both^ now placed in Enallagma probably refer to other species 

 of that genus, while A. iners, which is a synonym of Ischnura 

 Ramburii is doubtless /. verticalis. 



