5^2 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 

 bordering apex of cuneus variety scutellaris 



5. Antennal segment i blackish 5 



Antennal segment i pale \ y 



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 yellowish translucent canadensis 



Scutellum brownish black each side of median line, basal angles 

 paler; hemelytra reddish brown translucent, cuneus colored simi- 

 larly to the corium ruf usculus n. sp. 



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



Dorsum uniformly black, cuneus clear, legs pale tricolor 



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



(female) embolium and 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 amerkana) . Usually occurs 

 with amoenus during June. 



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

 N. amoenus (Reuter). 



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 amerkana) and red ash 

 {F. pennsylvanica) , 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 (Reuter). 



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 



