No. 39] ODONATA OF CONNECTICUT: AESHNIDAE 177 



Female. — Wings (PL xii, Fig. 3) with a brownish patch near 

 the stigma; anal appendages flat, the tips rounded and margins 

 setose (length i mm.) ; venter of eighth sternum not covered by 

 the terga, but projecting ventrad, with a conspicuous median carina 

 which forks cephalad. 



Measurements: total length, male 56, female 49-51 mm.; length 

 of abdomen, male 38-44, female 38-40 mm. ; length of hind wings, 

 male 31-36, female 31-36 mm.; width of hind wings, male 8-9, 

 female 9.5-10 mm. 



Several specimens in the collection of the Connecticut Agricul- 

 tural Experiment Station ; a male in the Yale University collec- 

 tion. The variety antilope (Hagen) has a much slenderer abdo- 

 men, and the tips of the inferior appendage of the male are much 

 less widely separated. 



Connecticut. — Westville, 14 June, 1905 (W. E. B.), 2 June, 1908 

 (B. H. W.) ; North Branford, 9 June. 1912 (B. H. W.) ; New Haven, 28 

 July, 1914 (Q. S. L.) ; Lyme, 16 June, 1918 (M. P. Z.) ; New London, 6 

 June, 1921 (R. H. H.) ; Hamden, 8 June, 1922 (P. G.) ; Haddam, 20 June, 

 1926 (P. G.). 



New England. — May 4-July 28. 



Genus Anax Leach 



Nymphs. — Hind angles of the head viewed from above obtusely 

 rounded; labial palpi rounded at end to a distinct internal hook; 

 abdomen with lateral spines on segments 7-9, but no dorsal hooks. 



Adults. — Wings with upper half of arculus shorter than lower ; 

 M2 making a sharp bend towards M^ at distal end of stigma; R3 

 forked; several rows of cells between Rs and the supplementary 

 sector ; triangle and supertriangle with cross- veins ; basilar space 

 without cross-veins ; anal loop with several rows of cells ; cubito- 

 anal cross-veins 3 or 5 ; anal angle of hind wings similar in the 

 two sexes ; thorax uniform green ; abdomen with at least two 

 lateral ridges on middle segments; inferior appendage of male 

 entire. 



Key to Species 

 Males and Females 



I. Dorsal surface of front without a black spot; hind femora 14-16 



mm. long longipes 



Dorsal surface of front with a black spot surrounded by a lighter 

 area ; hind femora not over 11 mm. long Junius 



The adults of the genus are very strong fliers, not easily cap- 

 tured. The species longipes is reported to occur only along the 

 seacoast and has never, as far as I am aware, been taken very far 

 inland. The nymphs inhabit small ponds and are climbers upon 

 submerged vegetation like other Aeshnidae. The eggs are 

 inserted into the stems of reeds or other plants beneath the surface 

 of the water. 



