No. 39] ODONATA OF CONNECTICUT: LIBELLULIDAE 



233 



Somatochlora cingulata (Selys) 



Bulletin de I'Academie royale . . . de Belgique (2), 31: 302: 1871. 



Nymph (Fig. 61). — Color dark brown. Readily recognized by 

 its large size and blotched color pattern, especially the abdomen, 

 segments 4-9 each bearing two prominent scars or blotches above 

 on either side. 



Head : palpi with six lateral setae, each palpus with seven to 

 eight teeth, the teeth in the middle of the row with about three 

 spines each ; caudal margins of the eyes considerably behind the 

 middle of the head. 



Thorax: femora each with two dark rings, the hind femora 

 extending caudad to abdominal segment 6. 



Fig. 61. Nymph 

 chlora cingulata, x 

 Walker.) 



of Sotnato- 

 1.6. (From 



Fig. 62. Somatochlora cingu- 

 lata, anal appendages of the adult. 

 (From Howe.) 



Abdomen: without dorsal spines or tubercles, the small lateral 

 spines on segments 8 and 9, .25 to .5 mm. long in full-grown 

 specimens; lateral terminal appendages three-fourths as long as 

 the ventral. 



Measurements: total length, 26-28 mm.; hind femur, 7.5 mm.; 

 wing-cases, 6 mm. ; median lobe of the labium, 5.5 mm. long by 

 2.5 mm. to 6 mm. wide; width of abdomen, 8.7-9.1 mm. 



Adult, male. — Color metallic green and black. 



Thorax: metallic without lateral pale spots; wings clear, not 

 yellow. 



Abdomen: pale rings on segments 2 to 9; anal appendages in 

 dorsal view with a sharp sub-basal angle, the tips bent mesad 

 conspicuously (Fig. 62). 



