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



more or less, pale ; membrane pale variety signatus 



(c) Chiefly black, cuneus and sometimes narrow base of corium 

 pale; scutellum pale yellowish; membrane pale fumate, paler 

 bordermg apex of cimeus variety scutellaris 



5. Antennal segment i blackish 5 



Antennal segment i pale 7 



6. Scutellum testaceous, sometimes brownish on middle at base,' never 



blackish with median line paler ; frequently with clavus bordering 

 scutellum, and apical area of corium, fusco-brownish, but cuneus 



always j^ellowish translucent canadensis 



Scutellum brownish black each side of median line, basal angles 

 paler; hemelytra reddish brown translucent, cuneus colored simi- 

 larly to the corium rufusculus n. sp. 



7. Dorsum more or less pale, scutellum always with yellowish 8 



Dorsum imiformly black, cuneus clear, legs pale tricolor 



8. Scutellum with median line black and extending from base to apex ; 



(female) emboliumand outer margin of corium blackish while 

 inner apical angle of corium remains testaceous . . . .vittiscutis n. sp. 

 Scutellum yellow, sometimes dark at middle of base but never with 

 median line black; (female) inner apical angle of corium black 

 while the embolium remains chiefly pale pubescens 



N. geminus (Say). 



Compl. Writ., i, 344, 1859. 



Length 4.8-5.3111111., width 2.2mm.; deep black, shining; legs, 

 antennal segment i and base of ii, cuneus except apex, pale ; front 

 of head usually marked with pale. 



Food plants : White ash (Fraxinus americana). Usually occurs 

 with amoenus during June. 



Eastford, 12 Jime, 1919 (B. H. W.). 

 N. amoenus (Renter). 



Acta Soc. Sci. Fenn., xxxvi. No. 2, 48, 1909. 



Length 4.3-5 mm., width 2 mm. ; pale yellowish, marked with 

 reddish and fuscous, and sometimes with black; pronotum with 

 five to seven fuscous or reddish rays, clavus and apical area of 

 corium marked with bright red, sometimes tinged with fuscous; 

 apex of antennal segment ii, and sometimes iii and iv, fuscous. 



Food plants : White ash (Fraxinus americana) and red ash 

 (F. pennsyhanica), especially the latter. Nymphs occur on the 

 trees from May to September ; apparently two broods. 



New Haven, 28 Sept., 1905; 4 Aug., 20 Sept., 1920 (B. H. W.). 

 N. amoenus var. signatus (Renter) . 



Acta Soc. Sci. Fenn., xxxvi. No. 2, 49, 1909. 



Pronotal disk black, median line, slender basal and lateral mar- 

 gins, calli except for transverse mark, line leading from outer 

 margin of callus to basal margin of disk, and a second short vitta 

 just behind the callus, yellowish ; scutellum yellowish, basal angles, 

 small mark at middle of base, and the mesoscutum, blackish; 

 clavus and corium blackish, or merely tinged with red, pale yellow- 

 ish along claval vein and corium just inside of radius from base to 

 about middle ; cuneus pale translucent, dusky at apex ; membrane 



