6 14 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Key to varieties of colon Say. 



i. Antennal segment ii with narrow pale annulus next to blackish 

 base, brownish beyond but paler again at middle ; hemelytra pale 

 to grayish and with darker brown spots, or with background 



chiefly brownish and spotted with pale yellowish typical colon 



Antennal segment ii pale or brownish on basal half but without a 

 distinctly paler annulus next to the blackish base 2 



2. Hemelytra practically unicolorous pale to stramineous ..variety castus 

 Hemelytra uniformly dark reddish brown to fusco-piceous, or with 



markings lighter than ground color 3 



3. Hemelytra always more or less spotted with yellow, and usually 



the pronotum; pronotum varying from reddish to fuscous, fre- 

 quently vittate variety colonus 



Hemelytra without yellow spots, cuneus reddish and sometimes 

 spotted variety amiculus 



P. colon (Say). 



Compl. Writ, i, 346, 1859. 



Length 5.8 mm., width 2.5 mm.; length of pronotum 1.33 mm. 

 Antennae: Segment i, length 1.1 mm., brownish, spotted with 

 yellow, the spots more or less confluent, clothed with blackish semi- 

 erect hairs, in length scarcely equaling thickness of segment ; ii, 

 2.22 mm., narrow base and the apical one-third black, brownish 

 between but with pale annulus bordering the black, finely pubes- 

 cent ; iii, .97 mm., pale to fuscous, becoming darker at apex ; iv, 

 1.08 mm., pale fuscous, darker at apex. 



Dorsum pale yellowish to grayish or dark brown, spotted with 

 yellow, in paler specimens the brown forming large spots, clothed 

 with pale yellowish to golden pubescence ; membrane fuscous, paler 

 at middle and a spot each side just beyond tip of cuneus. Ventral 

 surface brownish, each segment of venter with two or three 

 longitudinal yellow marks on the sides. 



Legs yellowish, apical one-third of femora and two bands on 

 tibiae brownish, the brown color spotted with yellow ; in dark 

 specimens the hind femora developing a brownish patch on basal 

 half. 



New Jersey, New York. 

 P. colon var. colonus McAtee. 



Ann. Ent. Soc. Am., ix, 383, 1916. 



Length 5-6 mm., width 2.1-2.7 mm. ; reddish brown to fusco- 

 piceous, dorsum more or less spotted with yellow ; variable in size 

 and color but readily distinguished in the key. 



Food plant: Virginia creeper (Psedera quinque folia). 



New Jersey, New York, Massachusetts, Vermont. 



Stenotus Jakovlev. 



S. binotatus (Fabricius). (Plate xvi, 20.) 



Lygaeus binotatus Fabricius, Ent. Syst, iv, 172, 1794. 

 Reuter, Hem. Gymn. Eur., v, 123, pi. 5, fig. 5, 1896. 



