268 
2, 1939, Frison & Burks, 6 6,12. MipMount: 
Jan. 1, 1939, Frison & Burks, 1g. RUCKERS- 
VILLE, Rapidan River: March 21, 1940, Frison, 
Mohr & Hawkins, 32. SHELBY, Rapidan Riv- 
er: Jan. 1, 1939, Frison & Burks, mating pair, 
@ 4, 92. SperryviLLeE: March 17, 1940, T. 
H. Frison et al. 66, 2@@Q. WHUINCHESTER, 
Hogue Creek: March 17, 1940, T. H. Frison 
ef al.,56,42. 
West VircintA.—Aucusta, Little Cacapon 
River: March 17, 1940, T. H. Frison et al., 
Ae OOM (2 ane? Cpe mating pairs). CAPON 
BripcE, Cacapon River: March 17, 1940, T. 
H. Frison et al., 33, 9 @. ERWIN: tributary 
of Cheat River, March 16, 1940, T. H. Frison 
et al. 56, 59; Wolf Creek, March 16, 1940, 
T. H. Frison et al., 59. EvansvitLe: March 
16, 1940, T. H. Frison ef al., 52, 59. FEL- 
LOWSVILLE: March 16, 1940, T. H. Frison e¢ al., 
14, 29. Iaxcer, Horse Creek: Jan. 1, 1936, 
John Addair, 3¢, 193 Feb. 2, 1936, John 
Addair, 108, 82. KANETOWN: March 16, 
1940, T. H. Frison et al., 53, 69. MACOMBER, 
Cheat River: March 17, 1940, T. H. Frison 
et al. &&, 99. Romney: March 17, 1940, 
T. H. Frison et al., 646, 8@. 
WIscoNsIN. — WuitcomB: April 8, 1937, 
Frison & Mohr, 29. WITTENBERG: April 8, 
1937, Frison & Mohr, 146, 19. 
Allocapnia curiosa new species 
Mate.—Body and appendages mostly 
dark brown to black with pale, mem- 
branous areas. No gill remnants. 
Head through compound eyes wider 
than pronotum. Ocelli arranged to form 
an isosceles triangle; the anterior ocellus 
situated well forward on the front, the 
lateral ocelli almost three times as far 
apart as distance from each lateral ocellus 
to inner margin of compound eye. Maxil- 
lary palpi less than thickness of basal flag- 
ellar segments. 
Pronotum quadrangular, surface with a 
narrow, median, longitudinal, depressed 
stripe and indistinct, raised rugosities. 
Wings somewhat abbreviated, forewings 
extending to sixth tergite, hyaline with 
veins dark brown. 
Abdomen with tergites seven and _ be- 
yond, fig. 34, darker and more heavily 
sclerotized than those preceding; first four 
to five tergites with a narrow, median, 
pale, longitudinal, membranous-hke stripe ; 
seventh tergite with a tubercle in middle 
of anterior half and with its tip slightly 
directed rearwards; eighth tergite with a 
small anterior tubercle in middle area 
and a tall, transverse one on posterior 
margin, which is notched in middle to 
form two points, ninth tergite slightly 
cleft for reception of supra-anal process; 
Intinois NAatuRAL History SURVEY BULLETIN 
Vol. 22, Aria 
recurved supra-anal process shaped as in 
fig. 34; ninth sternite without a lobe at 
the base. 
FEMALE.—Similar in most morpholog- 
ical features to the male. Wings not ab- 
breviated and extending to or beyond tip 
of abdomen; a wide, median, dorsal, longi- 
tudinal stripe extending from base of ab- 
domen to hind margin of eighth tergite, 
SuPRA-ANAL 
PROCESSES 
o’ TERMINAL ABDOMINAL 
TERGITES 
Q SUBGENITAL PLATE 
Fig. 34.—Allocapnia curiosa. 
last two tergites entirely and darkly scle- 
rotized; seventh abdominal sternite, fig. 
34, convexly swollen, with posterior medi- 
an margin produced lobelike backwards 
over eighth sternite, posterior margin of 
seventh beneath lobelike projection and 
anterior margin of eighth sternite appar 
ently fused at certain points of contact, 
eighth sternite with posterior margin 
straight, without any special structure, but 
somewhat recessed. | 
Holotype, male. — Kanetown, W. Va. 
March 16, 1940, T. H. Frison et al. 
Allotype, female——Same data as for holo- 
type. 
Paratypes. — WEST VIRGINIA. — KANETOWN 
Same data as for holotype, 204, 2@, including 
