616 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 48. 



dorsum of 3-8 black, little if any metallic; 9-10 bright sky blue, 

 unmarked. 



My reasons for referring this insect to Telagrion are the same as 

 stated by Calvert in describing his T daeclcii, 1 in which paper the vena- 

 tion of both T. daeclcii and T. longum Selys is figured. The blue pos- 

 tocular spots of raineyi are likely to prove evanescent in dried mate- 

 rial. From the described species of Telagrion, raineyi is distinct by 

 many characters. T.fulvellum Selys and T. inversum Selys have the 

 abdomen reddish, and in these 2 species and in longum the last 3 seg- 

 ments are red or reddish yellow. T. mecistogastrum Selys is a larger 

 dragonfly, with the abdomen of the male 50-52 mm. in length. T. 

 daeckii has the apex of 7 and 8-10 pale blue. 



The following notes on Telagrion daeclcii by Dr. Philip P. Calvert 

 have been added to this paper at my request : 



TELAGRION DAECKII Calvert. 



The recently killed male shows the following colors when compared with the orig- 

 inal description: 2 Eyes blue above, becoming pale greenish below; the blue of the 

 head, except the labrum, is mixed with greenish and hence not so pure as that of 

 labrum, thorax, and abdomen; prothorax with a transverse line near the hind 

 dorsal margin; mid-dorsal thoracic carina narrowly blue, dividing the median black 

 stripe longitudinally; metallic green on abdominal segment 7 ending posteriorly in 

 three prolongations, one mid-dorsal, the other two wider and infero-lateral. 



In the recently killed female the eyes are pale olive above to pale green below, 

 with two horizontal blackish stripes running from anterior to posterior margin of the 

 eye, the upper stripe at about one-fifth, the lower at two-fifths the eye-height from 

 the upper surface; these stripes sub-equal in width to the pale color which separates 

 them. Heads generally paler and a little more greenish than in the male, this espe- 

 cially true of the labrum. Thorax pale olive green, with black markings as in the 

 male, almost white on the sides inferiorly. Dorsum of abdominal segments 1-8 dark 

 metallic green, widened just in front of the hind end of 2-6 and almost interrupted 

 at the base of 3-7; sides of 1-6 pale green, of 7 and 8 and all of 9 and 10 (except a 

 transverse dorsal basal black stripe or line on 9) pale blue, paler than the same seg- 

 ments of the male. 



Appendages one-third as long as 10, pale bluish. Genital valves not reaching 

 farther than the level of the middle of 10, their " palpi " barely extending beyond 

 the level of the hind margin of 10. A stout vulvar spine on the hind ventral end 

 of the sternum of 8. Hind margin of prothorax shaped almost as in the male, per- 

 haps a trifle more produced dorsad. 



Abdomen, 32.5-31.5 mm.; hind wing, 21. 



Pairs of this species were seen flying together, the male clasping the female with 

 his appendages, the bodies of the two forming an almost continuously straight line, 

 moving rather slowly and stately among the Pontederia and Nymphaea (Castalia) near 

 the banks of the mill pond at Malaga, New Jersey, June 27 and July 2, 1913. 



4. SOME STUDIES OF PROTONEUKA. 



In 1860 De Selys brought under his new sous-genre Protoneura 3 

 species — capillans, tenuis, and sancta. The first considered and best 

 known, capillaris Rambur, must be regarded as the type of the 



i Ent. News, vol. 14, p. 38, February, 1903. 

 2 Idem, p. 36, February, 1903. 



