12 
Psyche 
\ March 
on each side; segment 2, entire dorsum, widened slightly 
toward apex, connected to a narrow apical ring; segments 
3-7, entire dorsum, abruptly constricted basally, slightly 
widened anteapically, connected with a narrow apical ring; 
segment 8, entire dorsum, widened gradually from base 
to apex; segments 9 and 10, entire dorsum. Midventral 
sternal carinae black on 1-8. Anal appendages and valves 
and styli of ovipositor pale; apex of each valve of ovi- 
positor, to base of stylus, extends not quite to apex of seg- 
ment 10 excluding appendages. Ventral spine of segment 
8 black to dark brown, sharp. 
Figure 1. Left mesostigmal lamina of Enallagma females in dorso- 
lateral aspect. A. laterale. B. recurvatum. C. davisi. D. minusculum. 
ca. 35x. 
Measurements: Total length to apex of segment 10, ex- 
cluding appendages : 24.8-28.0 mm. ; length of abdomen : 
20.0-22.7 mm.; length of front wing: 14.5-17.8 mm.; length 
of hind wing: 15.4-16.3 mm. The two Cape Cod speci- 
mens are larger; the Long Island specimen is represented 
by the smaller extreme in each case. 
Described from two specimens captured in tandem with 
males by the writer at Jabinette’s Pond, West Yarmouth, 
Massachusetts, on June 13, 1953, and one specimen from 
Riverhead, Long Island, New York, caught on May 29, 
1953, by Mr. Roy Latham. 
Enallagma recurvatum Davis. Female 
Jour. N. Y. Ent. Soc. 21: 15-16. 1913 
Color: Olivaceous, washed with light blue, and black. 
