193 
In Illinois we have found it common at Murphysboro, Cobden, Grand 
Tower, Pulaski, East St. Louis, Dubois, Clay City, and Havana, all south 
of the middle of the state. The most northern records we have for the 
form are Urbana and Hillery. The only months represented by our col- 
lections are June, July, and August. 
EUsScHISTUS SERVUS Say 
Pentatoma serva Say, Descrip. n. sp. Heter. Hemip. N. A., 1831; Compl. 
Writ. Ent. N. A., Vol. 1, p. 314. 
This species is cited by Van Duzee for the southeastern states as far 
north as New Jersey, and west to Texas, Kansas, and New Mexico. 
In Illinois the species appears to be much more numerous in the 
southern portion of the state, ranging from-Urbana southward, only two 
examples in our collection bearing the label “N. Ill.” The dates on our 
specimens range from May 13 to August 25, and include all intervening 
months. 
In addition to the Illinois material we have specimens from Ala- 
bama, Tennessee, Florida, and Texas. 
In our collection there is a large series of specimens standing as 
impictiventris Stal, named by Mr. Hart. As the species is not in Mr. 
Hart’s key I made a search to discover if any light could be thrown upon 
the omission by notes not contained in the manuscript. I find the fol- 
lowing note in some manuscript not directly connected with the present 
work: 
“My impictiventris is perhaps intermediate between servus and the 
true inpictiventris. These three forms, although usually distinguishable, 
intergrade so much that they are probably only geographic subspecies. 
“Pyrrhocerus is usually considered a variety of tristigmus. The dif- 
ferences are similar to those in the group above mentioned, and although 
more marked and more constant than any in that group, are probably 
only of subspecific value.” 
As indicated above there is some doubt as to the specific distinctness 
of the forms, a fact borne out by a perusal of Van Duzee’s notes on 
impictiventris.* 
The specimens standing as impictiventris in our collection are from 
the same localities as those of servus, with the exception that the most 
northern examples are from Muncie. The dates range from June 28 to 
August 24. We also have specimens from Tennessee, Kansas, and 
California. 
EUSCHISTUS EUSCHISTOIDES Voll. 
Diceraeus euschistoides Vollenhoven, Versl. Med. Kong. Akad. Wetens. 
Amst., ser. 2, Vol. 2, p. 180. 1868. 
ELuschistus fissilis Uhler, Proc. Boston Soc. Nat. Hist., Vol. 14, p. 96. 1871. 
This species is distributed throughout the North American continent 
from Quebec to Vancouver Island, and from Florida to Texas. 
* Trans. Am. Ent. Soc., Vol. 30, p. 45. 1904. 
