No. 39] ODONATA OF CONNECTICUT: AESHNIDAE 189 



Female. — Color similar to the male; pattern as shown in 

 Fig. 34. 



Head : distance from the hind margin of the vertex to frontal 

 vesicle more than 2 mm. 



Thorax : wings with Rs fork symmetrical ; supratriangular area 

 with 3 cross-veins; lateral thoracic bands 1.7 mm. broad below, 

 narrowed to i mm. above. 



Abdomen: first segment without ventral tubercle; about four 

 times as long as thorax ; superior anal appendages not over i mm. 

 in width and rounded at tips. Ovipositor without bilobed basal 

 plate, the lateral plates almost or entirely invisible ; lateral valves 

 flattened and sulcate beneath, and with a pencil of hairs at tip ; 

 styli .6 mm. long, not as long as dorsum of segment 10. 



Fig. 34. Aeshna verticalis, anal 

 appendages and color pattern of 

 thorax. (From Howe.) 



Measurements : total length, male 62-68, female 60-63 mm. ; 

 length of abdomen, male 47, female 47-50 mm. ; length of hind 

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

 female 14 mm. 



Connecticut. — New Haven, 26 September, 1903 (W. E. B.) ; Scotland, 

 25 July, 1904 (B. H. W.) ; Salisbury, 27 August, 1904; New Canaan, 14 

 September. 1905 (W. E. B.) ; Twin Lakes, 20 August, 1921 (P. G.) ; 

 Litchfield. 19 September, 1908 (L. B. W.). 



New England. — July 17-October 2. 



Group 4. The Cyanea Group 



Aeshna constricta Say 



Journal of the Academy of Natural Sciences of Philadelphia, 8: ii : 1839. 



Adult, male. — Color dark brown marked with green and blue. 



Head: line of contact of the compound eyes longer than the 

 vertical triangle; distance from the hind margin of the vertical 

 triangle to the frontal vesicle more than 2 mm. ; cross-arm of 

 frontal T wider than the upright; preocellar transverse band 

 narrow. 



