No. 39] ODONATA OF CONNECTICUT: COENAGRIONIDAE 97 



Metepimera without a black spot above and below the latero- 

 ventral carinae 6 



6. Ovipositor extending about as far beyond the tip of segment lO as 



tlie ventral length of that segment — considerably beyond the 



ventral anal appendage forcipatus 



Ovipositor not extending as far beyond the tip of segment lo 7 



7. Occiput and postgenae mostly pale unguiculatus 



Occiput and postgenae black or dark 8 



8. Tarsi black above ; abdomen less than 30 mm. long dis junctus 



Tarsi pale above; abdomen more than 30 mm. long rectangularis 



Lestes congener Hagen 



Synopsis of the Neuroptera of North America, 67: 1861. 



Nymph. — Color pale brown or greenish. 



Head : labium with the median lobe comparatively broad at 

 base, the contracted portion one-third as broad as the expanded 

 and about as long; mental setae usually 6, sometimes a small 

 seventh on each side ; lateral setae four or five ; labium when 

 folded extending between the metacoxae. 



Thorax : distances between pro- and mesocoxae, and between 

 meso- and metacoxae about equal ; all femora with faint preapical 

 brown rings; wing-cases hardly extending caudad of the second 

 abdominal segment. 



Abdomen : with poorly developed lateral keels, which are pro- 

 vided wnth apical spines on segments 5-9; gills broad, bluntly 

 pointed and with three cross-bands of dark pigment (PI. i. Fig. 

 3) ; ovipositor of the female reaching slightly beyond the apex of 

 the tenth segment. 



Measurements: length, 16 mm.; length of abdomen, 12 mm.; 

 length of gills, 8 mm.; width of gills, 2 mm.; length of meta- 

 thoracic wing-cases, 5 mm. ; length of median lobe, 3 mm. 



Adult, male. — Color dull brown and buff or yellow. 



Head : black, buff below ; postclypeus black or dark brown, the 

 anteclypeus, labrum, and genae, to the level of the fronto-clypeal 

 suture, yellow ; lateral ocelli sometimes with small yellow spots 

 alongside ; front, remainder of the vertex, occiput, except occa- 

 sionally a transverse yellow stripe from the occipital foramen to 

 the compound eyes, black ; eyes blue. 



Thorax : dark brown and yellowish buff, the prothorax dark 

 brown, the median lobes of the pronotum with pale lateral margins 

 and mesal spots near the caudal margin, the black areas spreading 

 with age and occupying most of the lobes ; caudal lobe and pro- 

 epimera black or dark brown ; dorsal carina usually with a pale 

 line, the mesepisterna except the ventral half of the katepisternum 

 black or dark brown, usually with a greenish tinge ; caudo-dorsal 

 angle of metepi sterna dark brown or black ; metepimera each with 

 an elongate black spot near the ventro-lateral carina (sometimes 

 two spots) and a similar spot just below the carina; legs striped, 



