No. 39] ODONATA OF CONNECTICUT: LIBELLULIDAE 223 



Abdomen : black, with two yellow spots on each side of segment 

 2 near the auricles, and one on each side of the dorso-meson of 

 the same segment ; base of 3 with the yellow more or less divided 

 into dorsal and lateral spots each side; anal appendages (Fig. 

 46) with a distinct basal tooth, and lateral ridge, in lateral view, 

 the tips tapering to a slightly upturned apex. 



Female. — Differing somewhat in color, there being only one 

 spot on the sides of abdominal segment 2 ; ovipositor almost at 

 right angles to the axis of the abdomen and as long or longer than 

 the vertical diameter of segment 9. 



Measurements : total length, male 42-44, female 44-50 mm. ; 

 length of abdomen, male 26.5-31, female 31-33 mm.; length of 

 hind wings, male 30.5-33, female 32-34 mm. ; width of hind wings, 

 male 8.5-9, female 10-10.4 mm. 



New England. — ^June 22-July 8. 



Somatochlora walshii (Scudder) 



Proceedings Boston Society Natural History, 10: 217: 1866. 

 N5nTiph. — Unknown. 



Adult, male. — Color black and metallic green with yellow mark- 

 ings. 



Fig. 47. Somatochlora walshii, 

 anal appendages of adult. (From 

 Howe.) 



Head: labium brown to pale, labrum nearly black, clypeus 

 brown, the front also brown, with a large greenish metallic spot 

 above, vertex and occiput dark brown to iDlack; rear of head 

 black. 



Thorax: metallic green varied with reddish brown, with two 

 yellow spots on the sides, the anterior spot in the form of a short 

 stripe, the caudal one oval ; legs black, the coxae brown. Wings 

 clear, with 7 ante- and 6-7 postnodal cross-veins in the front wing. 



Abdomen : black, swollen at base, narrowed at the third seg- 

 ment, again enlarged from the 5th to 8th or 9th ; the lateral 

 margins of segments 2 and base of margin of 3 yellow; 2 and 3 

 also with dorso-lateral yellow spots, and small obscure spots on the 

 cephalo-lateral angles of 5-7, lateral margin of 8, a small spot on 

 sides of 9, and caudal half or third of the dorsum of 10 yellow ; 

 anal appendages (Fig. 47) in dorsal view much enlarged near 

 apices and densely pilose, the lateral surfaces showing two small 



