The dung beetle fauna of the Big Bend region of Texas (Coleoptera: Scarabaeidae: Scarabaeinae)
Author
Edmonds, W. D.
text
Insecta Mundi
2018
2018-07-27
642
1
30
journal article
10.5281/zenodo.3708186
f503e20e-e3fb-41ac-bf17-bdaf221bc7c7
1942-1354
3708186
55CCB217-771C-499D-9110-36F143C375C5
Canthon
(
Boreocanthon
)
praticola
LeConte
Fig. 34–35
Diagnosis.
Dorsum black, lacking any hint of blue highlights. Small, length
5–8 mm
. Clypeus strongly quadridentate. Upper surfaces densely granulate on finely shagreened background; no visible puncturing. Pygidial surface evenly curved, apex not distinctly more convex than basal area. A formal discussion of this species appears in
Halffter (1958)
.
Big Bend collection sites
(altitudinal range:
1200–1630 m
).
Jeff Davis Co.
:
[1]
16 km
S
Fort Davis
(along TX 17),
30°27′48″N
103°58′59″W
,
1600 m
(Aug)
;
[2]
~
16 km
NE Valentine
,
Muerto Springs Ranch
(Muerto Springs),
30°40′50″N
104°20′22″W
,
1555 m
(Jul)
;
[3]
~
16 km
NE Valentine
,
Muerto Springs Ranch
(Muerto Springs, near headquarters),
30°40′28″N
104°24′07″W
,
1475 m
(Jul)
.
Presidio Co.
:
[1]
37 km
SSW
Marfa
(along FM 2810,
Petan Ranch
–
Cherry Hills
sector),
30°07′35″N
104°19′24″W
,
1630 m
(Jun)
;
[2]
20–26 km
SSE
Marfa
(along
FM 169
),
1355–1415 m
(Jun)
;
[3]
8 km8km
8 km
W La Viuda Peak
,
29°42′30″N
103°54′30″
,
1200 m
(Sep);
[4]
~
16 km
W
Valentine
(Miller Ranch, near headquarters),
30°33°30″N
104°38′44″W
,
1350 m
(Jul–Aug)
;
[5]
~
6.5 km
W Marfa
(Hip-O
Ranch
),
30°21′54″N
104°07′12″W
,
1530 m
(Aug–Sep)
.
Collection method(s).
a) baited pitfall trap (human feces); b) direct capture (cow dung).
Surface activity.
Diurnal.
Habitat.
Grasslands.
Comments.
Canthon praticola
is a wide-ranging species in more open habitats of the northern Chihuahuan Desert, including southwestern Arizona, through the Great Plains into southern
Canada
. Bill Warner (pers. comm.) reports that this species will utilize prairie dog (
Cynomys
) dung encountered at the burrow entrance.