No. 34-] HEMIPTERA OF CONNECTICUT: MIRIDAE. 6ll 



2. Antennal segment i as long as, or longer than pronotum 3 



Antennal segment i shorter than length of pronotum 4 



3. Basal width of pronotum exceeding 2 mm. ; color everywhere 



except discal spots and membrane, a lighter or darker reddish 



brown adustus 



Basal width of pronotum less than 2 mm. ; coloration chiefly f usco- 

 piceous, frequently pale on costal margin hawleyi 



4. Antennal segment ii not exceeding 2.2 mm., in length 5 



Antennal segment ii at least 2.4mm. in length, usually longer; 



segment i nearly equaling length of pronotum; basal width of 

 pronotum at least 2.2. mm., usually greater limbus 



5. Color above pale brown, mottled with several large and numerous 



minute yellow spots, largest spots at middle and apex of corium, 

 the apical half of scutellum yellow ; legs and antennal segment i 

 with brown and yellow variegated, segment ii with apical one- 

 third black multisignatus 



Otherwise colored 6 



6. Color dull tawny red, variegated with yellow; indistinctly striped 



with yellow on pronotum, scutellum, and hemelytra; form short 



and broad heidemanni 



Color stramineous to dark brownish gray, or dark brown, varie- 

 gated with paler maculae; antennal segment ii with narrow 

 annulus at base and the apical one-third blackish, basal half 

 yellowish brown but paler at each extremity bordering the black 

 color colon 



Key to color varieties of scrupeus Say* 



1. Hemelytra with costal margin colored similarly to disk of corium 2 

 Hemelytra with costal margin, or at least the cuneus, distinctly 



paler in color than disk of corium 9 



2. Pronotum with dark markings in addition to the discal spots 3 



Pronotum without definite dark markings in addition to discal spots 8 



3. Pronotal disk and scutellum orange to pale red, anterior to discal 



spots dusky to piceous, basal angles of disk usually with piceous 



dots or more or less clouded 4 



Pronotal disk otherwise marked 5 



4. Corium fusco-piceous typical scrupeus 



Corium dark red, cimeus somewhat lighter variety rubidus 



5. Pronotum very dark 6 



Pronotum pale except for indistinct vittae and dusky maculations 



from discal spots to posterior margin, and between these and 

 lateral margins ; a broad pale vitta traversing scutellimi, thorax, 

 and top of head; coritmi 3'-ellowish brown variety percursus 



6. Scutellum dark 7 



Scutellum chiefly yellowish or reddish; pronotal disk dark above 



except for a median and two lateral areas in line with the discal 

 spots variety triops 



7. Scutellum piceous ; pronotal disk with two lateral yellow areas . . ^ 



variety diops 

 Scutellum dusky with median pale vitta, spots on clavus and corium 

 yellowish red variety delta 



8. (2) Corium reddish brown with yellowish dots variety compar 



Corium except apex, clavus except base and slender inner margin, 



uniformly orange-red variety ardens 



* This key is largely an adaptation from the work of Mr. W. L. McAtee 

 (Ann. Ent. Soc. Am., ix, 369, 1916) although specimens of each variety are 

 at hand for study. 



