182 
Key TO SPECIES 
Pronotum without any sharply contrasting color division. 
General color dark chestnut or blackish; abdominal marginal incisures with 
evident black dot; basal, angles of scutellum at most with very small 
smooth spots; [pronotum and basal half of elytra with narrow yellow lateral 
margins; male hypopygium similar to that of calva]............... sordida. 
General color greenish; abdominal marginal incisures without evident black 
dot; basal angles of scutellum with a smooth pale callus larger than eye; 
[pronotum and elytra without yellow lateral margins; male hypopygium 
similar to that. of Qvmigigtay] accross i reeeie oie ok ie eee euchlora. 
Pronotum green or olivaceous in front of a line connecting the lateral angles; 
back of this line red-brown; the two colors in sharp contrast. 
Abdominal marginal incisures with evident black dot; second antennal 2/3 to 
3/4 as long as third; [male hypopygium as in Pl. XVIII, Fig 26]....calva. 
Abdominal marginal incisures with not more than a minute black point; 
second antennal 1/2 to 2/3 as long as third; [male hypopygium as in Fig. 
Ph ee eee A inserts coco orcs aria pee oma ae c OF ee ate dimidiata. 
BANASA sorDIDA Uhl. 
Atomosira sordida Uhler, Proc. Boston Soc. Nat. Hist., Vol. 14, p. 98. 1871. 
Two specimens taken by the author near the Mississippi River at 
Grand Tower, southern Illinois, June 30 and July 10. The species is 
recorded from Maine, Vancouver, and Arizona, and from some inter- 
mediate states. 
BANASA EUCHLORA Stal 
Banasa euchlora Stal, Enum. Hemip., Pt. 2, p. 44. 1872. 
This is a southern species, one ranging from Florida to Arizona 
(Bol.), and north to Maryland a Iowa. It was captured on cedar at 
Summerfield (S. Ill.) May 1, by E. S. G. Titus. 
BANASA CALVA Say 
Pentatoma calwa Say, Descrip. n. sp. Heter. Hemip. N. A., 1831; Compl. 
Writ. Ent. N. A., Vol. 1, p. 318. 
The species is known from Georgia, New York, and Montana. [We 
have one male from Grand Tower (S. Ill.) July 12, 1909.] Van Duzee 
says that near Buffalo (N. Y.) it is “tolerably abundant on various 
deciduous trees from August to October.” 
BANASA DIMIDIATA Say 
Pentatoma dimidiata Say, Descrip. n. sp. Heter. Hemip. N. A., 1831; Compl. 
Writ. Ent. N. A., Vol 1, p. 318. / 
This 1s our commonest species. It ranges from the Atlantic coast to 
California, and north into Canada. We have it from Algonquin and vari- 
ous other pojnts in northern Illinois; also from Quincy (C. Ill.) May 12, 
Sl tig e 9, and November 14, (and from White Heath (C. IIL. ) Novem- 
ber 22, 1913.] 
