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



Adult, male (PI. xxi, Fig. 5). — Color red and brown, some- 

 times lacking red entirely. 



Head: labium brown, labrum, clypeus and front red; front 

 with a black basal line in front of the ocelli ; occiput and post- 

 genae red or brown. 



Thorax : uniformly reddish brown ; legs brown, the tibiae with 

 long black spines, tarsal segments darker at tips, ventral tooth of 

 tarsal claws well beyond the middle; wings with reddish and 

 brownish infuscation somewhat heavier along the costal borders; 

 15-19 antenodal cross-veins in the front wing; postnodals 12-17; 

 stigma brown or red covering 4-5 cells in the front wing and 

 5.5-6 mm. long. 



Abdomen: uniform red, slender, tapering gradually from base 

 to tip, with a blackish line along the dorsal carina, sometimes 

 obscure on 3 to 7, more distinct on segments 8 and 9; accessory 

 appendages as in L. cyanea; anal appendages red to brown, the 

 inferior about twice as wide at base as at apex; the superiors 

 with 8 to 1 1 black teeth beneath. 



. Female. — More brown or yellow than the male, the tips of the 

 wings sometimes infuscated. Margins of eighth terga extending 

 ventrad considerably. 



Measurements : total length, male 52-55, female 50 mm. ; length 

 of abdomen, male 31-36, female 30-33 mm. ; length of hind wings, 

 male 35-40, female 33-37 mm. ; width of hind wings, male 10-10.5, 

 female 11 mm.; length of stigma, male 5-5.5, female 5-6 mm. 



Connecticut. — Seven specimens taken at New Haven, 20, 22, and 27 July, 

 1924. by P. G.. J. L. R. and B. H. W. 

 New England. — July 4-September 13. 



Libellula cyanea Fabricius 



Systema Entomologie, 424: 1775. 



Nymph. — Head : caudo-lateral margins with long scurvy hairs ; 

 mentum with 12 setae on each side, of which the six inner ones 

 are much shorter than the rest ; distal margin with about 12 short 

 spines on each side with 2 to 4 crenulations or serrations between 

 each ; palpi with 6 lateral setae and a group of small setae at the 

 base near the articulation ; distal margins of the proximal segment 

 of the palpi with 10 to 11 notches, the teeth between each with i 

 to 4 spines 'in a graded series, the longest about twice the length 

 of each tooth. 



Abdomen: heavy dorsal hooks on segments 4-8 inclusive, 

 prominently elevated and extending to the caudal margin of the 

 segment bearing them, or a little beyond ; caudal margins of seg- 

 ments 5-9 with long sparse hairs, their bases nearly on the line 

 of small spines ; most of the hairs, however, slightly in front ; 

 dorsum and lateral margins of the superior median terminal 

 appendage also sparsely setose ; lateral spines present on segments 



