September, 1942 
ae fe) 
— ABDOMINAL 
SEGMENTS 
~ 
Fig. 120.—Hastaperla brevis. 
1935a, fig. 331) is quite satisfactory, but 
the illustrations of the most important 
structural details of the adults are poor, 
and new ones, figs. 115 and 120, are here- 
with presented, 
Specimens of this species, and records asso- 
ciated with them, have been studied as fol- 
lows. 
ARKANSAS.—BENTON, Salt Creek: April ries. 
a9, eH. oe |. A, Rosse l-nymph, 1 9. -sMAL- 
VERN, southwest of town: April 15, 1939, H. 
H. & J. A. Ross, 1g. Mounrarnpure, Clear 
Preek-a May 171939, H. HH. & J, A: Ross, 19. 
Mountain PINE: June 5, 1937, H. H. Ross, 
$46, 99. WaAsHINGTON CouNTY: May 3, 
1939, 18. WunsLow: May 1, 1939, H. H. & 
ia. Ross, 13, 2°. 
ILLINOIs.—SHAWNEE NATIONAL Forest, Union 
County, Hutchin’s Creek: April 8, 1938, Frison 
& Mohr, 10 nymphs. Mountain GLEN, Union 
County, Hutchin’s Creek, near town: April 
24, 1938, C. O. Mohr, 76, 109, 1 nymph, 
2 exuviae, 39 (reared). SERENA, Indian 
Creek: May 19, 1938, Ross & Burks, 29. 
Wotr Lake, Union County, Hutchin’s Creek: 
May 2, 1940, Mohr & Burks, 1 nymph; May 
7, 1940, Mohr & Burks, 1¢ with 1 exuvia 
(reared) ; May 12, 1939, Burks & Riegel, ‘OF 
1 nymph, 4 exuviae; May 14-15, 1940, Mohr 
& Burks, 66, 99; May 25, 1940, Mohr & 
Burks, 19. 
INDIANA.-TURKEY RUN STATE Park: May 
30, 1930, Frison & Ross, 192 ; in gorge, May 22) 
1932, T. H. Frison, 12 ; Newby Gulch, May 
6, 1933, Mohr & Townsend, nymphs; May 11, 
1933, Frison & Mohr, 68 (reared), 3 2, 
22; Newby Gulch, May 11, 1933, Frison & 
Mohr, nymphs, ¢ 6, 9 9; reared at Charles- 
ton, Ill.. May 12, 1933, Frison & Mohr, 12, 
12; Newby Gulch, May 12, 1933, Mohr & 
Frison, nymphs; Sugar Creek, May Teh 959) 
G. T. Riegel, 3 nymphs; small tributary 
Stream, May 7, 1939, G. T. Riegel, 4 nymphs; 
Newby Gulch, April 9, 1940, Frison & Ross, 
5 nymphs. 
Frison: NorrH AMERICAN PLECOPTERA 341 
KENTUCKY. — CUMBERLAND FA.ts STATE 
PaRK: May 12, 1939, Frison & Ross, 19. 
MANITOBA.—CHURCHILL: Aug. 3, LO3 7a eels 
Denning, 19 ; Churchill River, 20 miles south 
of town, Aug. 5-6, 1937, D. G. Denning, 
2G Sieg 2-9 61937 DG, Denning, 19 ; 
July 29, 1936, H. E. McClure, 12. PicEon 
RIVER: June 10, 1932, F. Neave, 4 specimens. 
SWAN River, Swan River: June 5 LIS Ou or. 
McClure, 3 nymphs. 
MARYLAND.—BALTIMORE: May 16, 1938, E. 
G. Fisher, 16, 39. Piney Grove: April 19, 
1938, H. H. Ross, 2 nymphs. 
MICHIGAN. — BENZONIA: May 27, “193.9: 
Prison moon Rossetlc 0180 eh REE Sort, Great 
Sable River: May 26, 1939, Frison & Ross, 
56,32, 1 nymph, 4 exuviae. Hate, Au Sable 
River: May 21, 1936, Frison & ROSS a5 oe 
Near Hare, Au Gres River: May 21, 1936, 
Frison & Ross, 19, 3 nymphs. Irons, Little 
Manistee River, near town: May 28, 1939, 
Frison & Ross, 4 nymphs. IstE ROYALE: Aug. 
3-7, 1936, C. Sabrosky, 12. Mayrietp, Board- 
man River: May 28, 1939, Frison & Ross, 26. 
MInNEsora. — Enchanted Isle, LAKE MIN- 
NETONKA: June 25, 1932, H. H. Shepard, 19. 
GRAND Ma,rais: Little Devils Track Creek, 
Ug a3 19298 CD Schmidt. 99° Devils 
a taciog Creckee Nurs 7a1929", Ce. Ts Schmidt, 
12; Kadunce Creek, in spider web on rock 
CiitpeAugess.” 192998 C70 1s Schmidt, 192. No. 
1,954, O. W. Oestlund collection, 19. 
Missour!I. — SPRINGFIELD, Pickerel Creek: 
May 20, 1937, H. H. Ross, 19. Zion, Madison 
County: April 7, 1938 Frison & Mohr, 1 
nymph. 
New YorK.—ItHaca: Coy Glen, July 7, 
1908, 2 specimens; Wild Flower Preserve, 
July, 1929, 19. Spraxers, Flat Creek: July 
3, 1934, 19. ‘Tompxins County, Six Mile 
Creek: July 8, 1927, P. R. Needham, Load 2s 
Euspa Miuus, Adirondack State Park: June 20, 
1941, Frison & Ross, id) 19. “Brue Moun- 
TAIN LAKE, Bear Brook near town, Adirondack 
State Park: June 19, 1941, Frison & Ross, 
13. 
NorTH CARoLina.—Marion: April 23h 3D. 
Ross & Burks, 44, 29. SMOKEMONT, Ocona- 
luftee River: May 29, 1934, Lee bl  Fison. 
36, 32. STATESVILLE, April 23, 1938, Ross 
& Burks, 18, 19, 1 nymph. 
Nova Scoria.—Moser River: Lower Gold- 
mine Brook (A1), June 22, 1 erat Wawa Wed OS 
Nicol, 108, 109 ; Goldmine Brook (B), June 
43; 1939, J. A.C, Nicol, 56, 132°: Goldmine 
Brooke A2) a lune 26,1939 [A.C Nicol, 
¢ 6, 292; Lower Goldmine Brook ray Pp 
July5971939 >. te Aa CaNicolel & «ower Gold- 
mine Brook (A2), June 19, 1939, J. A. C. 
Nicol) 
On10.—Hockinc County: May 1, 1938253 
Jed eoN Kn On 
OKLAHOMA.—ALBION, Clear Creek: June 4, 
1937, H. H. Ross, 119. Frnt: June 6, 1934, 
Ligiy> Juneh8)4 1934, 24 101+ June LOI a7 
Standish-Kaiser, 26,19. Locust Grove: May 
5, 1934, 14, 29. Pace: June 23; 1937, Stan- 
dish-Kaiser, 18, 19. Wutpurron: June 4, 
195 t 2 he ueluly 10,1934 .1 3". 
OREGON.—HorseETAIL Fatys, Columbia River 
Highway: Aug. 6, 1922, G. Hoppe, Ceo 
