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



4. Small, length 3.8mm.; membrane pale, veins about areoles green; 



antennal segments i and ii yellowish (p. 514) chlorionis 



Larger, length 4.5mm. or more; membrane more or less infus- 

 cated, veins sometimes green but in such case antennal segment i 

 distinctly blackish ^ 



5. Tylus with small fuscous spot at base ; antennal segment i yellow- 



ish to green, sometimes infuscated but when dark the membrane 

 distinctly fuscous, or the calli practically flat and devoid of basal 



impression 6 



Tylus without small fuscous spot at base; antennal segment i 

 fuscous to black; membrane pale, veins about areoles green; 

 calli moderately convex, an impressed line along basal margin ; 



pubescence pale but rather coarse and prominent 



(p. 515) basicornis n. sp. 



6. Membrane pale, sometimes fumate basally, clavus never infuscated 



(p- 519) viridis 

 Membrane uniformly fuscous ; corium uniformly green, clavus 

 sometimes with a dusky cloud . . .modestus var. immaculatus n. var. 



7. Form small, ovate; color a uniform whitish-testaceous, hemelytra 



translucent, head and callosites tinged with yellowish (p. 513) catulus 

 Form more elongate ; hemelytra with fuscous areas, or at times 

 nearly black 8 



8. Color pale testaceous, hemelytra translucent and with fuscous 



markings very faint or nearly lacking in female ; median line of 

 head and scutellum, lateral margins of pronotum, and sides of 

 body, black; antennae blackish, membrane slightly infuscated, 



veins brown (p. 517) candidatus 



Ground color sometimes pale greenish or yellowish but dark mark- 

 ings of hemelytra distinct; other markings not as the above, 

 sometimes the whole insect may become nearly black 9 



9. Dorsum brownish black, slenderly pale only at base of corium and 



embolium, slightly translucent at base of cuneus; median line 

 of pronotal disk and sometirnes continued upon scutellum, pale ; 



length 6.8 mm (p. 517) necopinus 



Hemelytra with more than slender base of corium and embolium 

 pale; length usually less than 6mm. (remainder of key for 

 females only, see figures of genital claspers for males) 10 



10. Female pronotum with lateral margins black, disk broadly pale or 



fulvous, sometimes with only median line pale . . . . 1 1 



Female pronotum with lateral margins pale or greenish, disk usually 



blackish and frequently with median line pale 15 



11. Pronotal disk with fulvous, sometimes the hemelytra also fulvous 12 

 Pronotal disk with pale or greenish 13 



12. Hemelytra black, a broad pale stripe extending full length of 



corium and connecting with pale cuneus; legs fulvous, apical half 



of hind femora blackish /p. 516) knighti 



Hemelytra chiefly fulvous or salmon colored; blackish each side 

 of commissure and on embolium (p. 518) submarginatus 



13. Pronotal disk broadly pale, scutellum black; basal half of corium 



and embolium, and slenderly bordering base of cuneus, pale; 

 transversely blackish across apical half of henielytra but leaving 

 costal margin slenderly pale ; membrane and apical half of cuneus 



uniformly dark fuscous (p. 516) cruciatus 



Pronotal disk and hemelytra not so broadly pale 14 



14. Embolium and outer margin of corium pale greenish, translucent; 



median line of scutellum pale (p. 522) serus 



Corium blackish at outer margin except at base; scutellum black 



(p. 521) alni n. sp. 



15. Hind femora blackish except basally, scutellum broadly pale; 



clavus, apical half of corium, calli, and usually pronotal disk 



