No. 39] ODONATA OF CONNECTICUT: LIBELLULIDAE 287 



Measurements : total length, male 34, female 30 mm. ; length 

 of abdomen, male 21, female 19 mm. ; length of hind wings, male 

 26, female 25 mm. ; width of hind wings, male 10, female 9 mm. 



New England. — July 8-August 20. 



Celithemis eponina (Drury) 



Illustrations of Natural History — Exotic Insects, 2: pi. xlvii, f. 2: 1773. 



Nymph. — Head : labium with 9 to 10 lateral setae on the labial 

 palpi, the crenulations of the mesal margins with 4 to 5 spines 

 each ; antennae with segments 3, 5, and 6 equal in length, 4 and 

 7 equal, i and 2 equal, shorter. 



Thorax : hind femora extending to abdominal segment 8 ; wing- 

 cases extending to segment 6. 



Abdomen: color pattern somewhat similar to Tetragoneuria 

 (see PI. IV, Fig. 4), lateral spines of segment 9 reaching the ends 

 of the terminal appendages ; dorsal spines present on segments 

 4 to 7. 



Measurements : total length, 16 mm. ; length of abdomen, 9 

 mm. ; width of abdomen, 5 mm. ; length of hind femora, 5 mm. 



Specimens in the Museum of Comparative Zoology examined. 



Needham (Bull. 47, N. Y. State Museum, p. 515) gives the 

 length of this species as 21 mm., abdomen, 12.5 mm., hind femur, 

 6 mm. 



Adult, male. — Color, body black and brown, wings brown and 

 yellow. 



Head : labium, labrum, clypeus and front brown or yellow, the 

 region immediately in front of the ocelli darker; vertex and 

 occiput dark brown, the postgenae, however, with a few small 

 spots near the lateral margins of the compound eyes. 



Thorax: uniform brown with obscure dark markings on mid- 

 dorsum, and two on pleura. Legs black and dark brown, coxae, 

 trochanters, and ventral surface of the femora brown, remainder 

 black ; front coxae winged below, the ridge with a fringe of setae ; 

 wings wholly flavescent, with dark brown spots (PI. xiii, Fig. i). 



Abdomen : black with an elongated mid-dorsal spot on terga 2 

 or 3-7, and sides of 1-4 or 5 yellow; remainder of terga and 

 venter black, superior anal appendages brown, inferior black; 

 transverse median ridge on tergum 3, and a transverse groove on 

 2 and 4. 



Female. — In general, lighter in color, and the nodal brown band 

 of the wings more often interrupted and forming two separate 

 spots ; vulvar lamina short, broad, one-seventh to one-tenth as 

 long as segment 9. 



Measurements : total length, male 36-39, female 36 mm. ; length 

 of abdomen, male 23-24, female 23 mm. ; length of hind wings, 

 male 32, female 30 mm.; width of hind wings, male 11-12, 

 female 11- 12 mm. 



