Leuctra Schusteri, A New Stonefly Species (Plecoptera: Leuctridae) Of The L. Tenuis (Pictet) Group From The Southeastern Usa
Author
Grubbs, Scott A.
text
Illiesia
2015
11
12
147
166
journal article
http://doi.org/10.5281/zenodo.4752768
f0f8f265-10f1-448f-8b15-6c56fc140166
1854-0392
4752768
8BFBE3F7-E0EF-4EDD-BA82-9EA087F74688
Leuctra tenella
Provancher 1878
Broad-lobed Needlefly
http://lsid.speciesfile.org/urn:lsid:
Plecoptera
.specie sfile.org:TaxonName:460049
(
Figs. 19–22
)
Leuctra tenella
Provancher 1878:126
. No
type
designation, vicinity of
Quebec
City
Leuctra tenuis
Provancher 1876:218
. Not
L. tenuis
Pictet
Leuctra hamula
Claassen 1923:261
. Syn.
Ricker 1952
Leuctra hamula
:
Needham and Claassen 1925:229
Leuctra
(
Leuctra
)
tenella
:
Ricker 1952:171
.
Lectotype
♂
designated.
Leuctra tenella
:
Illies 1966:109
Male.
The 7th abdominal dorsal process bears a simple, broadly-subtriangular lobe (
Fig. 19
); subtle anterolateral lobes present on some specimens. The specilla are broad basally, overall shape subtriangular and bearing prominent, laterallydirected tubercles distally (
Figs. 20–22
). The subanal lobes are subequal in length to the specilla; near uniformly-narrow through length, tapering little but recurved anteriorly in the distal half, especially at tips (
Figs. 21–22
).
Material examined.
Canada
,
New Brunswick
,
Carleton Co.
,
Gibson Creek
,
Hwy
105,
Northampton
,
15 June 1993
,
R
.
W. Baumann
&
B.C. Kondratieff
,
1♂
(
BYUC
)
;
Kent Co.
,
South Fork
,
Coal Branch River
,
Hwy
126,
Coal Branch
,
12 June 1998
,
R
.
W. Baumann
&
B.C. Kondratieff
,
1♂
(
BYUC
)
.
USA
,
Maryland
,
Frederick Co.
, tributary to
Tuscarora Creek
,
39.5601
,
-77.4827
,
3 June 1997
,
S.A. Grubbs
,
7♂
,
2♀
(
WKUC
)
;
Garrett Co.
,
Black Lick Run
,
Savage River State Forest
,
39.6098
,
- 79.0827
,
17 May 1995
,
S.A. Grubbs
,
1♂
(
WKUC
)
;
Poplar Lick Run
,
Poplar Lick
ORV
Trail
,
Savage River State Forest
,
39.6124
,
-79.1494
,
24 May 1996
,
S.A. Grubbs
,
4♂
(
WKUC
)
.
New Hampshire
,
Grafton Co.
, headwaters,
Hubbard Brook
, at road,
25 June 1974
,
S.B. Fiance
,
17♂
(
BYUC
)
.
New York
,
Oswego Co.
, Little Sandy Creek, Hwy. 13, east of
Lacona
,
17 June 1997
,
R
.
W. Baumann
&
B.C. Kondratieff
,
12♂
,
8♀
(
BYUC
)
.
North
Carolina
, Haywood Co., tributary to
Flat Laurel Creek
,
Little Sam Trail
,
Pisgah National Forest
,
35.3167
,
- 82.8918
,
22 July 2015
,
A.L. Sheldon
,
2♂
(
WKUC
)
;
tributary to
Flat Laurel Creek
,
Pisgah National Forest
,
35.3230
,
-82.8982
,
22 July 2015
,
A.L. Sheldon
,
1♂
(
WKUC
)
;
Flat Laurel Creek
,
Pisgah National Forest
,
35.3244
,
-82.8960
,
22 July 2015
,
A.L. Sheldon
,
1♂
(
WKUC
)
;
Macon Co.
,
Wine Spring Creek
,
Nantahala National Forest
,
35.8791
,
- 83.5979
,
28 May 2014
,
A.L. Sheldon
,
1♂
(
WKUC
)
.
Ohio
,
Hocking Co.
, tributary to
Pine Creek
,
Hocking State Forest
,
39.4468
,
-82.5850
,
26 May 2010
,
S.A. Grubbs
,
2♂
(
WKUC
)
.
Pennsylvania
,
Bedford Co.
,
Bear Gap Run
,
7 km
ESE Centerville
,
Buchanan State Forest
,
39.8111
,
-78.5669
,
14 May 1999
,
S.A. Grubbs
,
1♂
(
WKUC
)
;
Westmoreland Co.
, spring into
Powdermill Run
,
Powdermill Nature Reserve
,
3 June 1993
,
S.A. Grubbs
,
24♂
,
24♀
(
WKUC
)
.
Vermont
,
Lamoille Co.
,
Big Spring
,
Hwy
108, south of
Smugglers Notch
,
15 July 1998
,
R
.
W. Baumann
,
3♂
(
BYUC
)
.
Virginia
,
Giles Co.
,
Big Stony Creek
,
Hwy
635,
24 May 1990
,
S.W. Szczytko
,
1♂
,
1♀
(
BYUC
)
.
West Virginia
,
Tucker Co.
, seep below
Watershed
3,
Fernow Experimental Forest
,
2 June 1991
,
S.A. Grubbs
,
2♂
(
WKUC
)
.
Figs. 19–22.
Leuctra tenella
, Pennsylvania, spring into Powdermill Run. 19, 7
th
abdominal process, dorsal view, 350X; 20, paraprocts, caudal view, 1000X; 21,
L. tenella
, paraprocts, lateral view, 350X; 22,
L. tenella
, paraprocts, lateral view, 1500X. sp = specillum, sa = subanal lobe.
Distribution.
Canada
: LB, NB, NS, ON, PQ.
USA
: CT, MA, MD, ME, MN, NJ, NY, OH, PA, WI, WV (
DeWalt et al. 2015
), NC, NH, VA, VT (new state records).
Remarks.
The dorsal abdominal process of this species is most similar to
L. carolinensis
. The specilla of
L. tenella
are distally truncate (
Figs. 21– 22
) compared to the distally-subtriangular tips of
L. carolinensis
(
Figs. 4, 7, 9
). The subanal lobes of
L. tenella
are sharply-recurved at the tips (
Figs. 21–22
), contrasting with the gradually-recurved lobes in the distal half on
L. carolinensis
(
Figs. 4, 6‒9
).