No. 39] ODONATA OF CONNECTICUT: COENAGRIONIDAE 53 



two small green triangles at the base ; ovipositor including styli 

 extending beyond the apices of anal appendages. 



^leasurements : total length, male 25-27, female 26-29 nim. ; 

 length of abdomen, male 21, female 21-22 mm.; length of hind 

 wings, male 13. 5-15, female 14-17 mm.; width of hind wing, male 

 3-4. female 3-4 mm. 



Connecticut. — West Haven, 29 June, 1905 (H. L. V.) ; Stratford, 9 

 July, 1920; Hamden, 28 June, 4 July, 1920; New Haven, 3 July, 1920 

 (P. G.) ; New^ London, 17 June, 1921 (R. H. H.) ; Litchfield, 5 July, 1911 

 (L. B. W.). 



New England. — May 28-August 23. 



Geiius Teleallagma Kennedy 



Adults. — Postocular spots present; postnodal cross-veins 11-12 

 in the front wing ; M, arising between the fifth and sixth of these ; 

 stigma of the male not remote from the margin ; Cug terminating 

 in the hind margin of the front wing between the nodus and origin 

 of M2 ; dorsum of thorax not metallic green, but brown or blue ; 

 tibial setae shorter than the distances between them ; mesopleural 

 suture marked with black; abdomen very slender with terga 1-5 

 never entirely red or yellow, but blue or green on sides, with black 

 dorsal stripes ; vulvar spine present in the female. 



The only representative of this genus in the United States was 

 placed doubtfully in Telagridn by Calvert (Ent. News 14, 36-39: 

 1903). Since then Kennedy (Ohio Journal of Science xxi: 87: 

 1920), who has studied the genera of Zygoptera critically, erected 

 the genus Teleallagma for this species and states his reasons for 

 the change in correspondence; namely, that the female of Tela- 

 grion Selys lacks the vulvar spine present in T. daeckii, which is 

 enough in itself to separate daeckii from this genus. Daeckii is 

 furthermore a close relative of the Enallagmas both in anal and 

 accessory appendages, but differs enough in wing venation and 

 general form to stand under a different genus. Thus being 

 excluded from both Enallagma and Telagrion a new genus is the 

 only alternative, hence the name Teleallagma. All this informa- 

 tion together with the uncertainty with which Calvert placed the 

 species in Telagrion has led to the adoption of the new name. 



Teleallagma daeckii (Calvert) 



Entomological News, 14: 36-39: 1903. 



Adult, male (Fig. 42, Nos. i, 3, 4 and 5). — Color pale blue and 

 black. 



Head : mostly blue with black as follows : mid-dorsal spot on 

 labrum ; postclypeus with a spot each side sometimes connected 

 and a basal line; short narrow stripe in front of median ocellus 

 and another zigzag stripe behind it ; a spot behind base of each 



