Au'j^ust — December iS"-"'9. 



PSYCHE. 



249 



the Rocky Mountains ends, and perhaps 

 by the upper parts of the Columbia 

 River. As far as I know, such species 

 are to be found along the northern shore 

 of Lake Superior and then cross 

 over to western New York ; such spe- 

 cies are, until now, not to be found in 

 eastern Canada or in Maine. Of course 

 when species can come east in such a 

 way, it is possible that some could go 

 west in the same way, and would be, 

 perhaps, modified by the climate. So 1 

 found it necessary to compare carefully 

 with C. yak/ma the C. kudsofiica 

 from Michipicoten and C. aequabilis. 



5, Calopteryx maculata. 



Ag-rion maculata Palis. Beauvois 85 

 pi. 7, f. 3 (aberratio). 



Calopteryx maculata Burm. Hdb. 

 V. 3, S39.17. Rbr. Neur. 322,5. Selys. 

 Monogr. Cal. 27,5 ; Synops. Cal. 10.=;. 

 Walker, Catal. Br. mus. 592,5. Ha- 

 gen Synops. Neur. N. A. S7i4 i 

 Synops. Odon. N.A. 22,6; Stett. 

 ent. zeitung, v. 24, 372,26 ; Proc. Bost. 

 soc. nat. hist. v. 15, 274,40 ; v. 16, 364,53. 



Calopteryx opaca Say Journ. acad. 

 Philad. v. 8, 32,3 male. 



Calopteryx materna Sav Journ. 

 acad. Philad, v. 8, 32,1, fem. (Drurv L 

 pi. 43, f 3). 



Calopteryx holosericca Burm. Hdb. 

 V. 2, 828,13. Rbr. Neur. 236,14 (ei'vo- 

 neously f. Java) . 



Libellula virgo Drury v. i, 113 pi. 

 48, f. 2 ; edit. Westw. 118. 



Calopteryx papilionacea Rbr. 

 Neur. 222,6. 



Male, metallic blue ; head below and 

 second joint of anteima black ; l-abruni 



black, shining; tuliercles of occiput 

 blunt, more or less short ; thorax me- 

 tallic blue, sides and below black ; 

 legs black ; abdomen metallic blue, the 

 last segments below and the inferior ap- 

 pendages below entirely reddish ; wings 

 dilated in the middle, rounded below, 

 black more brown on base, which is on 

 the base more or less hyaline ; reticula- 

 tion very dense. 



Adult males sometime occur with ir- 

 regular hyaline spots, figured bv Palisot 

 Beauvois as his Agr. maculata. 



Male junior, similar, but the wings 

 hyaline, pale gray ; axillary callus and 

 costa steel-blue. 



Female, head and thorax metallic 

 green or brown ; abdomen brassv brown ; 

 last three segments with a pale yellow- 

 ish band, broader on the penultimate ; 

 black below ; wings vei-y variable in 

 shape and color ; sometimes as broad 

 as third of the length ; always a milk- 

 white pterostigma, quadrangular, the 

 corners rounded, 2 nun. long, or very 

 large oval, 4 mm. long; color as the 

 younger males, with a brownish tinge, 

 darker along the basal half of the costa 

 and on the apex of the hind wings ; 

 sometimes darker brown with the apical 

 quarter of the hind wings or also the 

 front wings dark brown ; the darkest 

 colors in the south from S. Carolina to 

 Florida ; the northern specimens paler. 



Antecubitals less than 30, rarely 

 19; quadrangular space 5 to~ 9 trans- 

 versals, or a few more. 



Male 

 Length, 44-48 



Abdomen, 34-40 



Ex pan. alar. 50-66 



Female 

 32-50 

 30-32 

 54-66 



