A Taxonomic Revision of Weevils of the Genus Panscopus Schönherr (Coleoptera: Curculionidae: Entiminae: Tropiphorini)
Author
Spanton, Timothy G.
Author
Anderson, Robert S.
Canadian Museum of Nature Entomology, P. O. Box 3443, Station D Ottawa, ON, CANADA K 1 P 6 P 4
text
The Coleopterists Bulletin
2016
mo 15
2016-12-18
70
1
86
journal article
10.1649/0010-065X-70.mo4.1
1938-4394
4908700
7B6ECA8F-2F31-48AC-A990-C70991BF32E9
Panscopus
(
Nocheles
)
rugicollis
Buchanan, 1927
(
Figs. 26
,
52
,
Map 27
)
Panscopus
(
Nomidus
)
rugicollis
Buchanan 1927: 31
. Schenkling and Marshall 1931: 41;
Buchanan 1936: 15
; Blackwelder 1939: 66; Bousquet
et al
. 2013: 345.
Panscopus rugicollis
; Hatch 1971: 290. O’ Brien and Wibmer 1982: 63; Bright and Bouchard 2008: 263.
Panscopus remotus
Van Dyke 1949: 55
. O’ Brien and Wibmer 1982: 63.
Type Material.
Panscopus rugicollis
,
holotype
female (
USNM
No. 28915): “
Mt. Adams
,
Washington
6000’
July 3 1925
M. C. Lane
, Coil.” The
holotype
female of
P. remotus
, “
Taquitz Valley
/
San Jacinto Mountains
, Calif.
VI-14-1939
;
E. S. Ross
/ Collector; lupine.roots” (
CASC
), was also examined
.
Notes about Synonymy.
Van Dyke’ s
holotype
of
P. remotus
is dark in color. Otherwise, it fits the description of
P. rugicollis
(as noted in Bright and Bouchard 2008). Two other specimens, both females with data “Lassen Nat’ l/ Park Cal./ VI-12-31; Kelly’ s Ranch; Van Dyke/ Collection” (
CASC
) and “Norval Flats/ Lassen Co Cal./ 7-12-20/
5500 ft
; J. O. Martin/ Collector” (
CASC
) and initially identified as
P. remotus
, are also darker colored individuals of
P. rugicollis
. Males of
P. rugicollis
from Lassen County (
CMNC
) and Tulare County (
CMNC
),
California
are are very dark, almost black, with a much more narrow body form than the females. One female from the Lassen County series is also very dark in color, but otherwise appears to match
P. rugicollis
from elsewhere in the species’ range.
Map 27.
Geographical distribution of
Panscopus rugicollis
.
Specific Epithet.
The epithet
rugicollis
was derived from the Latin nouns “
ruga”
, meaning wrinkle or crease, and “
collum”
, neck, or
collaris
, pertaining to the neck. It was applied to this species probably in reference to the pronounced rugosities of the prothorax, which
Buchanan (1927)
recorded in his brief description.
Diagnosis.
Adults of this species share with those of
P. abruptus
a median carina on the prementum. This character state distinguishes these two species from all other species of
Panscopus
.
Panscopus rugicollis
has the even elytral intervals setose their entire length, whereas specimens of
P. abruptus
are without setae on the even intervals. In addition, specimens of
P. abruptus
are very dark brown in color, whereas most
P. rugicollis
specimens are generally not as dark; however, males attributed to this species from Tulare and Lassen Counties are a very dark brown, almost black.
Redescription.
Females: Length 7.4–9.0 mm (
n
= 10); width across elytra
2.9–3.4 mm
(
n
= 10). Males: Length
6.4–6.7 mm
(
n
= 8); width across elytra
2.4–2.6 mm
(
n
= 8).
Color:
Medium to very dark brown.
Head:
Broad, transverse depression at base of frons evident but not pronounced, frons and rostrum nearly continuous in lateral view; rostrum without carinae visible through vestiture in most specimens; some specimens with thin median longitudinal carina faintly visible through scales; nasal plate indistinct, some scales inserted in area of nasal plate; nasal carina broadly U-shaped in most specimens; vestiture of frons and rostrum of dense, overlapping, striate scales and scattered, decumbent, broad, flattened setae.
Mouthparts:
Prementum with median longitudinal carina in apical 1/3–1/2 (lacking or difficult to see in some specimens).
Antennae:
Scape short, extending to only anterior margin of eye; integument concealed by dense vestiture over most of length; antennomeres 2–8 each with dark brown, long, apically directed primary setae and short, fine lighter-colored appressed secondary setae, integument clearly visible through vestiture.
Pronotum:
Broadly rounded laterally, approximately 1/6 (males) to 1/5 (females) wider than long; dorsal surface coarsely rugose; longitudinal sulcus evident, more pronounced in anterior 1/2; vestiture of dense, striate scales and scattered, decumbent setae; males with widest point distinctly in front of middle.
Elytra:
Broadly oval in females, combined width approximately 2/3 length, approximately 40% wider than pronotum, less broad in males, more elongate and narrow; declivity rounded in lateral view, apex of elytron straight, slightly reflexed ventrally in females, not so in males; alternate intervals very slightly elevated, with single or partly double row of coarse, blunt setae, even intervals with single row of setae; serial punctures each with round scale larger than surrounding scales (hard to see on very dark specimens); elsewhere vestiture of dense, overlapping scales.
Legs:
Tibiae 1, 2, and 3 with few stout, dark brown spines on ventral margin in distal half; tibia 3 curved, corbellar area narrowly and indistinctly closed.
Abdomen:
Vestiture of scales and scattered setae; ventrite 1 convex at middle in females, strongly concave at middle in males.
Genitalia:
Females (
Figs. 26
,
52
): Sternum VIII with apical expansion approximately 1/3 of length; coxites narrowed angularly toward apex in dorsal view, rounded apically in lateral view, stylus with 2 or 3 setae at apex; vagina with pair of curved sclerites anteriorly; spermatheca sickle-shaped, broad. Males: Aedeagus slightly decurved, angular at apex with median apical acuity in posterodorsal view; manubrium of tegmen and median struts of aedeagus each slightly longer than median lobe; internal sac membranous, horseshoe-shaped sclerite elongate, closed apically; small v-shaped sclerite internal to horseshoe-shaped sclerite in dorsal view.
Life History.
Of the specimens seen, most were collected in July and June, some in August and May, four in April, and one in each of March and September. Males of the species are known only from Black Mountain, Lassen County and Sequoia National Forest, Tulare County,
California
.
Plant Associations.
The
type
specimen of
P. remotus
was reported by
Van Dyke (1949)
to have been collected from the roots of
Lupinus
sp. A
number of specimens were collected from sifted leaf litter.
Geographical Distribution.
This
species lives in montane forest habitats in the
Pacific region
from southern
California
to central
British Columbia
.
Altitudinal
records from label data range from
500 to 3,050 m
. The lowest figure is from the northern end of the geographical range in central
British Columbia
. These weevils live at higher elevations in the southern portions of the geographical range of the species. It occurs in BC, CA, ID, OR, and WA (
Map 27
)
.
Chorological Affinities.
See this topic for
P. abruptus
above.
Material Examined.
In
addition to the
type
material indicated above, approximately
560 specimens
were examined.
CANADA
:
British Columbia
:
Endako
,
20.VII.1927
,
R. Hopping
(1,
CASC
)
;
Hope Mountains
,
3.VIII.1932
,
A.N. Gartrell
(1,
CNCI
)
;
Quesnel
500 m
, 18.VII-13.VIII.,
S. & J. Peck
, pine-aspen forest (1,
CMNC
)
.
USA
:
California
:
El Dorado Co.
,
Echo Lake
, 21&.
22. VII.1941
,
A.T. McClay
(5,
UCDC
)
;
Snowline Camp
,
27.VI.1948
,
C.D. MacNeill
(1,
UCDC
)
.
Fresno Co.
,
Huntington Lake
,
25.VII.1940
,
A. T. McClay
(7,
UCDC
)
.
Lassen Co.
,
Facht
,
11.VI.1922
,
J.O. Martin
(1,
CASC
)
;
Norval Flats
,
10.VI.1920
(1,
CASC
)
;
Norval Flats
,
1680 m
,
12.VI.1920
,
J.O. Martin
(1,
CASC
)
:
Lassen National Park
,
Kelly’
s
Ranch
,
12.VI.1931
,
Van Dyke
collection (1,
CASC
)
;
Blacks Mountain Experimental Forest
, IX/
X.1997
, S. O’
Keefe
and
N. Rappaport
, sifting litter (6,
CMNC
)
.
Riverside Co.
,
Taquitz Valley
,
San Jacinto Mountains
,
14.VI.1939
,
E.S. Ross
,
Lupinus
roots (1,
CASC
)
.
Shasta Co.
,
Bridge Camp
,
1.VI.1946
,
A.T. McClay
(8,
UCDC
)
.
Siskiyou Co.
,
Macdoel
,
9.6 km
S.,
31.III.1962
,
J. Schuh
,
Pinus
litter (1,
CWOB
)
;
McCloud
,
4 mi.
E,
Fowler’
s
Camp
,
2.VII.1963
,
V.B. Whitehead
(1,
CWOB
)
;
McBride Spring
,
6.4 km
.
N.E. Mt. Shasta
,
4.VII.1963
,
V.B. Whitehead
(1,
OSUC
)
;
McCloud
,
25.VI.1914
,
Van Dyke
collection (2,
CASC
)
;
Mt. Shasta
,
16.VII.1938
,
1.VII.1940
,
11.VI.1941
,
30.VI.1941
,
A.T. McClay
(82,
UCDC
)
;
Mt. Shasta
,
6.4 km
N.E. McBride Spring
,
4.VII.1963
,
V.B. Whitehead
(1,
CWOB
)
;
Mt. Shasta
,
Panther Meadow
,
2350 m
,
1.VIII.1982
,
R.L. Westcott
(1,
CMNC
)
.
Trinity Co.
,
Mountain Meadow Ranch
, head
Coffee Creek
,
8-10.VII. 1969
,
W.G. Goodman
(1,
UCDC
)
.
Tulare Co.
,
Sequoia National Forest
,
Boulder Creek
,
36.1562N
,
118.5409W
,
22.VII.2005
,
M. Caterino
(1,
CMNC
)
;
36.1585N
,
118.5406W
,
21-23.VII.2005
, M.
Caterino
, cantharidin
pitfall
(1,
CMNC
)
;
Packsaddle Creek
,
35.9554N
,
118.5755W
,
4.XII.2005
, rotten pine log,
M. Caterino
,
S. Chatzimanolis
(1,
CMNC
)
.
“
Calif.
”,
Buto
(1,
USNM
)
.
Idaho
:
Adams Co.
,
Bear
,
2.VII.1968
,
B.F. & J.L. Carr
(2,
CNCI
)
.
Blaine Co.
,
Pettit L
,
10.VII.1968
,
B.F. & J.L. Carr
(1,
CNCI
)
.
Valley Co.
,
McCall
,
10.VI.1933
, FH.
Shirk
(2,
OSAC
)
;
McCall
,
Brundage Mountain
,
1830 m
,
24.VI.1938
,
M.C. Lane
(2,
OSAC
)
.
Oregon
:
Baker Co.
,
Baker
,
Pine Creek
,
22.III.1942
,
K.M. & D.M. Fender
(1,
OSAC
)
;
Sumpter
, 15&
17.VI.1984
,
B. F. & J. L. Carr
(2,
CNCI
)
.
Clackamas Co.
,
Government Camp
,
5 km
N.,
26.VII.1961
,
D.R. Smith
, ex
Lupinus
(1,
OSAC
)
;
Mt. Hood
, government
Camp
,
1.6 km
S.,
25-29.VII.1966
,
Vaccinium
, at night (1,
CWOB
)
.
Deschutes Co.
,
Indian Ford C.
,
17.VI.1970
,
R. Turnbow
(1,
CWOB
)
;
Bend
,
11.3 km
S.,
29.VII.1958
,
G.F. Kraft
(1,
UICM
)
.
Douglas Co.
,
Diamond Lake
,
29.VI.1941
,
K.M. & D.M. Fender
(2,
OSAC
)
;
Diamond Lake
,
15.VII.1927
,
E.H. Nast
(1,
CASC
)
.
Grant Co.
,
Malheur National Forest
, Magone
Lake Campground
,
6-9.VI.1989
,
E. Fuller
, beating shrubs (1,
CMNC
)
.
Harney Co.
,
Steen Mountains
.,
25.VI.1922
,
Van Dyke
collection (1,
CASC
)
;
Steens
2440–3050 m
,
14-16.VII.1953
,
Roth
&
Beer
(1,
OSAC
)
.
Hood River Co.
,
Cloud Cap Inn
,
6.4 km
E.,
26.VII.1961
,
D.R. Smith
(1,
OSAC
)
;
Cloud Cap Road
,
Mt. Hood
,
1370 m
,
17.VII.1933
,
S.E. Crumb
(1,
OSAC
)
;
Mt. Hood
1530–1830 m
,
1.VII.1927
,
E.C. Van Dyke
(10,
CASC
)
;
Mt. Hood
,
1520m
,
21.VI.1925
,
M.C. Lane
(2,
USNM
)
;
Mt. Hood
,
Homestead Inn
,
1.VII.1927
,
E.C. Van Dyke
(5,
CASC
)
.
Jackson Co.
,
Union Creek
,
6.VII.1941
,
A.T. McClay
(19,
UCDC
)
;
Rogue River National Forest
,
North Fork Campground
,
58 km
.
E. Medford
,
Highway
140,
30. VI.1986
,
T.G. Spanton
(8,
CMNC
)
.
Klamath Co.
,
Crater Lake
,
21.VIII.1948
,
M.H. Hatch
(1,
OSAC
)
;
Crater Lake
,
16.VIII.1934
,
J. Bongberg
(2,
UCDC
)
.
Klamath Co.
,
Crater Lake
,
6.VII.1941
,
A.T. McClay
(1,
UCDC
)
;
Ft. Klamath
, auto boreas (1,
USNM
)
;
Mt. Pitt Trail
,
14.VI.1961
,
J. Schuh
,
Abies concolor
(1,
AMNH
)
;
Upper Klamath Lake
,
28.VI.1917
,
R. Hopping
(1,
CASC
)
.
Lake Co.
,
La Pine
,
24 mi
E.,
12.VIII.1968
,
G.F. Kraft
(1,
UICM
)
;
Lakeview
,
Crane Mt.
Trail,
26.VI.1984
,
B.F. & J.L. Carr
(2,
CNCI
)
;
Lakeview
,
Willow Creek
Camp,
27.VI.1984
,
B.F. & J.L. Carr
(1,
CNCI
)
;
Warner Mountains
,
20.VI.1922
,
Van Dyke
collection (32,
CASC
)
.
Lane Co.
,
Frog Camp Campground., N. E
.
Corner
,
2.VIII.1966
,
W. Gagne
,
Ex
Vaccinium
(4,
CWOB
)
;
Olalie Creek
,
13 km
. N.
Belknap Springs
,
3.VI.1947
,
B. Malkin
&
I.M. Newell
(1,
FMNH
)
.
Umatilla Co.
,
Lehman Springs
, hwy 244,
14.VI.1984
,
B.F. & J.L. Carr
(1,
CNCI
)
;
Tollgate Road
,
Blue Mountains
.,
11.VI.1938
,
Van Dyke
collection (5,
CASC
)
;
Tollgate Road
,
Blue Mountains
,
21.VI.1941
,
K.M. & D.M. Fender
(1,
OSAC
)
.
Union Co.
,
IX.1974
,
D. Schuh
(1,
AMNH
)
.
Wallowa Co.
,
Wallowa Lake
,
1370m
,
15.VI.1938
,
M.C. Lane
(1,
OSAC
)
;
Wallowa Lake
., 22&
23.VI.1941
,
K.M. Fender
(2,
OSAC
)
;
Whitman National Forest
.,
Anthony Lakes
,
9.VII.1941
,
M.C. Lane
(1,
OSAC
)
.
Counties
unknown:
Swim
,
2.VII.1942
,
Schuh
&
Gray
(1,
AMNH
)
.
Washington
:
Grays Harbor Co.
,
Montesano
,
8.V.1932
,
J. Wilcox
(1,
UCDC
)
.
Kittitas Co.
,
Easton
,
10.VI.1938
,
M.C. Lane
(5,
OSAC
)
;
Easton
,
18.IV.1931
,
W.W. Baker
(2,
USNM
)
.
Okanagan Co.
,
Lone Fir Campground
,
16 km
W. of
Mazama
,
20.VI.1987
,
T.G. Spanton
,
Amelanchier alnifolia
,
at night (5,
CMNC
)
.
Pierce Co.
,
Mt. Rainier National Park
,
Sunrise
1950 m
,
11.VII.1961
,
E.C. Becker
(1,
CNCI
)
;
Mt. Rainier National Park
,
Sunrise
,
13.VIII.1931
(7,
WSU
)
;
Mt. Rainier National Park
,
Sunrise
1940 m
,
13.VIII.1931
,
J. Wilcox
(3,
CUIC
; 5,
CASC
)
;
Mt. Rainier National Park
,
Sunrise
1940 m
,
14.VIII.1931
,
W.W. Baker
(1,
CASC
)
;
Mt. Rainier Natl. Pk.
,
Sunrise
1940 m
,
28.VII.1932
,
S.E. Crumb
(1,
CASC
)
;
Mt. Rainier Natl. Pk.
,
Sunrise Peak
,
24.VII.1936
,
Van Dyke
collection (50,
CASC
; 1,
CMNC
)
;
Mt. Rainier
,
Sunrise
,
14.VIII.1931
,
W.W. Baker
(1,
CNCI
; 4,
USNM
)
;
Mt. Rainier
,
Sunrise
1925 m
,
23.VII.1932
,
J. Wilcox
(3,
AMNH
)
;
Mt. Rainier
,
Sunrise
1950 m
,
6.VIII.1935
,
25.VII.1936
,
W.W. Baker
(3,
OSAC
)
;
Mt. Rainier
,
Sunrise
1940 m
,
28.VII.1932
,
S.E. Crumb
(2,
CNCI
)
;
Mt. Rainier
,
Sunrise
, 1890,
Shallow Lake
,
A.T. McClay
collection (2,
UCDC
)
;
Mt. Rainier
,
Sunrise
,
1925 m
,
23.VII.1932
,
J. Wilcox
(1,
CNCI
; 1, DEUN)
;
Mt. Rainier
,
Sunrise
,
1940 m
,
14.VIII.1931
,
W.W. Baker
(2,
UCDC
)
;
Mt. Rainier
,
Sunrise
,
1950 m
,
5.VIII.1935
,
W.W. Baker
(2,
UCDC
)
;
Mt. Rainier. Sunrise
,
1925 m
,
23.VII.1932
,
J. Wilcox
(26,
OSAC
)
;
Mt. Rainier. Sunrise
,
1925 m
,
28.VII.1932
,
S.E. Crumb
(6,
OSAC
)
;
Mt. Rainier National Park
,
14.VII.1945
(2,
UNSM
)
;
Mt. Rainier Nat’
l.
For.
,
Hell’
s
Crossing
,
30.V.1935
,
J. Wilcox
(12,
OSAC
)
;
Mt. Rainier National Park
,
Tipsco Lake
,
1640 m
,
20.VII.1966
,
W. Gagne
,
Solidago ciliosa
, night 37°F (1,
BMNH
; 2, CMNC; 46, CWOB; 1,
OSUC
; 1,
RHTC
)
.
Yakima Co.
,
Bird Creek
,
Mt. Adams
,
1220–1830 m
,
24.VII.1921
,
M.C. Lane
(1,
USNM
)
;
Mt. Adams
,
3.VII.1931
,
F.H. Shirt
(3,
OSAC
)
;
Mt. Adams
,
Bird Creek
, 31.VII,
W. Bales
(4,
WSU
)
;
Mt. Adams
,
Bird Creek
1520 m
,
18.VII.1933
,
K. Jackson
(1,
OSAC
)
;
Signal Peak
,
21.VI.1935
,
S.E. Crumb
(3,
OSAC
)
;
Signal Peak
,
21.VI.1935
,
J. Wilcox
(2,
OSAC
)
;
Signal Peak Ranger Station
,
15.VII.1933
,
J. Wilcox
(20,
OSAC
)
;
Yakima Indian Forest
Preserve,
1.VII.1925
,
Van Dyke
collection (1,
CASC
)
.
Counties
unknown:
western Washington
,
P. Eide
(1,
WSU
)
.