igo CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bull. 



Thorax: wings with fork of Ra symmetrical; supratriangular 

 space with 2-3 cross-veins ; anal triangle composed of 3 cells ; 

 distal side of the anal loop as long as the proximal side of the 

 triangle; thoracic stripes (Fig. 35) green, the mesepimeral or 

 first lateral stripe 6 mm. by i mm., with a small caudal projection 

 at the upper end; dorsal stripes somewhat cuneiform, 1.5 mm. 

 wide at the dorsal end ; metepimeral stripe similar to the mes- 

 epimeral, but a trifle shorter, two or three small dots present 

 between the lateral stripes; paraptera green, mesa- and metanota 

 blue (Fig. 38, No. 4). 



Abdomen: four times as long as the thorax; first abdominal 

 segment without a ventral projection; superior anal appendages 

 (Fig. 35) 5-5.5 mm. in length with a sharp ventro-apical tooth 

 and distinct latero-ventral carinae ; length of inferior appendages 

 2-3 mm., width at base i mm., at tip .5 mm., the tip with 2 small 

 upturned teeth. 



Fig. 35. Aeshna constricta, anal 

 appendages and color pattern of 

 thorax. (From Howe.) 



Female. — Color similar to the male. 



Head : similar to the male. 



Thorax: with lateral stripes nearly 2 mm. in width, and a 

 prominent caudal oflfshoot at the upper end (Fig. 35). 



Abdomen: lateral valves of ovipositor with prominent lateral 

 carinae, and without a pencil of hairs at tip ; the styli longer than 

 the dorsum of segment 10; lateral lobes visible, basal lobes not 

 bilobed. Superior anal appendages 6.5 mm. long by 2 mm. broad, 

 acutely pointed, widest proximad of the middle. 



Measurements : total length, male 65-66, female 64 mm. ; length 

 of abdomen, male 50-51, female 45 mm.; length of hind wings, 

 male 43-46, female 45 mm.; width of hind wings, male 13-14. 

 female 15 mm. 



Connecticut. — Litchfield, 7 September, 1910 (L. B. W.). 



New England. — June 19-October. 



