36 PROCEEDINGS MANCHESTER INSTITUTE 



17 Libellula qiiaclriiiiaciilata Linne. 



Calvert, p. 258 ; Hagen, Syn. Neur. N. A. p. 150. 



This beautiful species, with black and yellow or olive markings, 

 is comparatively rare about Manchester. Migrations of this spec- 

 ies have been recorded as follows : Bielfeld, 1881 ; Dresden, 

 1881 ; Neisse Valley, 1881 — "two hours in passing;" North 

 Germany, "large swarm," 1881 ; "every year" in Charento Infe- 

 rieure, at the end of September ; Zierikzee, Holland, May 30, 

 1883, "from II A. M. to II P. M.," coming from the southwest ; 

 Malino, Sweden, 1883 ; The Hague, 1884. One male in collec- 

 tion. Length, 45 ; alar expanse, 74. 



18 Libellula seiiiifasciata Burmeister. 



Calvert, p. 258; Hagen, Syn. Neur. N. A. p. 151. 



This strong flyer, at first glance resembling Libellula pulchella, 

 but readily distinguished by its yellow wing-veins and reddish 

 brown markings, is not very abundant about Manchester. One 

 male in collection. Length, 44 ; alar expanse, yy. 



19 Libellula axilleiia Westwood; form incesta Hagen. 

 Calvert, p. 257; Hagen, Syn. Neur. N. A. p. 155. 



One male in collection. Length, 52 ; alar expanse, 74. 



20 Libellula pulchella Drury. 



Calvert, p. 259; Hagen, Syn. Neur. N. A. p. 153. 



To the collector about Manchester this species soon becomes 

 the most familiar of all the larger Dragon-flies. It is common 

 everywhere but is here most abundant at Dorr's Pond, where 

 great numbers may be found during the first two weeks of July. 

 Three specimens in collection — one male, two females, one of 

 these teneral. Length, 53 ; alar expanse, 89. 



12 Platheniis Hagen. 

 Calvert, p. 224; Hagen, Syn. Neur. N. A. p. 149. 



21 Plathemis triniaculata De Geer. 

 Calvert, p. 259 ; Hagen, Syn. Neur. N. A. p. 149. 



