} 
! 
September, 1942 
gested it might be the female of Capnia 
vernalis Newport. Additional material 
of this species was not in hand in 1935 
and so in my later and more compre- 
hensive report of the Illinois stoneflies 
(1935a) I again cited this Illinois record 
and its questionable assignment to vernalis. 
On the basis of several old specimens 
from “Morgantown, N. Car. ( Morri- 
son)”’ in the collection of the Museum of 
Comparative Zoology, Banks (1938) de- 
scribed a new genus, Nemocapnia, includ- 
— ~ aan erie 
NYMPHAL LABIUM 
i 
NYMPHAL- 
MAXILLA 
——: 
— 
= 
—= 
—— 
—— 
— 
<—— + 
—= 
—=>= 
=== 
i 
Ht 
Hf 
Ht 
| 
i 
| 
| 
mH 
ce 
yt 
i" A 
sl 
rai 
o' ABDOMINAL SEGMENTS 
Pig. 29—Nemocapnia carolina from North 
Carolina. 
Frison: NorrH AMERICAN PLECOPTERA 
263 
ing in it a single species described as new 
under the name carolina. After seeing the 
typic specimens in 1939, I realized that the 
female Illinois specimen questionably re- 
corded as Capnia vernalis in my papers of 
1929 and 1935a was N. carolina Banks 
and not the female of a species of Capnia. 
Both males and females are easily recog- 
nized because of the characters of the 
wings. Although no seasonal data are as- 
sociated with the typic specimens, the date 
of capture of the Grayville, Ill., specimen 
on March 8, 1928, and collection of other 
specimens in other states, places this spe- 
cies in the winter faunal list. 
To facilitate recognition of this species, 
I present figs. 28, 29 and 30, which illus- 
trate the important structural characters 
of the adult males and females, as well as 
the nymphal mouthparts. The dorsal view 
of a nymph is shown in fig. 31. Fig. 29 
represents a specimen from North Caro- 
lina; fig. 30 represents specimens from 
Illinois and Indiana. The structure of the 
nymph confirms its placement in the Cap- 
niidae. 
In addition to assigning correctly now the 
Grayville, Ill, March 8, 1928, female speci- 
men to the species Nemocapnia carolina, there- 
by adding another genus and species to the 
Illinois list, I wish to add the following new 
records for the distribution of this recently 
described species. 
ARKANSAS.—BENTON, Salt Creek: April 15; 
1S O oH ek, ae Rossa 1c. 
INDIANA.—RocERS, White River: April 7s 
CS ABDOMINAL TERGITES 
Fig. 30.—Nemocapnia carolina from 
Illinois and Indiana. 
