Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species
Author
Lavigne, Robert J.
Author
Dennis, Steve
text
Zootaxa
2019
2019-08-30
4662
1
1
126
journal article
25823
10.11646/zootaxa.4662.1.1
7070ef91-15db-4b7e-a87d-72e7b0bdb192
1175-5326
3383448
366A1E81-946C-4ED4-8A65-C51151FE87CC
Leptogaster arenicolus
James
Leptogaster arenicolus
James, 1937: 13
.
Recognition characters:
Blackish species;
7–10 mm
; mystax white with many bristles that are matted together; thorax black, pleura, postpronotal, and supraalar regions reddish, pruinosity of pleura white, dorsally pale yellow, almost white; wings hyaline; abdomen brown subshining dorsum with denser lateral pollinosity, white ventrally; leg coxae reddish; fore legs with femora and tibiae pale yellow, narrowly reddish or pale brownish above; mid legs with femora brown above, black below, tibiae brown; hind legs with femora strongly clavate, tibiae brownish to black; tarsi black except for yellow basitarsi.
Distribution:
ALBANY:
11 July 1944
(
REP
); Centennial,
19 July 1960
(
RJL
); Owl Creek Mt.,
25 June 1961
(
RJL
); Sherman Hill Estates,
4 July 1969
(
RJL
). CAMPBELL: Wyodak Plant/Station CW-2, Gillette,
19 July 1977
. GOSHEN:
22 July 1944
(
REP
). LARAMIE:
32 km
E of Laramie,
22 July 1944
(
REP
). NIOBRARA: Stop 27,
8 July 1943
(
REP
). PARK: Cody,
5 km
NW,
11 July 1984
(
RJL
,
DF
). PLATTE:
13 July 1944
(
REP
);
32 km
E of Wheatland,
4 Aug. 1965
; Wheatland,
29 July 1974
(
RJL
), prey of
Efferia varipes
, 2:
42 p.
m. SWEETWATER: Farson,
4 Aug. 1955
(
GEB
); NE Farson,
28 June 1978
(
RJL
); Point of Rocks,
14 km
W (Thayer Jct.),
21 July 1976
(
RJL
); Thayer Jct.,
30 July 1979
(
MP
).
WYOMING
: 1881 (
HKM
) (one specimen in
USNM
).
Habitat:
Sagebrush steppe and wheatgrass-needlegrass shrub steppe shrub and grassland, grama-needlegrasswheatgrass and grama-buffalo grass grassland vegetation
types
. Rangeland.
Ethology:
Nothing known.
Prey:
None known.