Machimus callidus (Williston),

Lavigne, Robert J. & Dennis, Steve, 2019, Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species, Zootaxa 4662 (1), pp. 1-126: 45-46

publication ID

https://doi.org/10.11646/zootaxa.4662.1.1

publication LSID

lsid:zoobank.org:pub:366A1E81-946C-4ED4-8A65-C51151FE87CC

persistent identifier

http://treatment.plazi.org/id/7708F17A-B80E-E531-63F1-FB63606CFF88

treatment provided by

Plazi

scientific name

Machimus callidus (Williston)
status

 

Machimus callidus (Williston) 

Tolmerus callidus Williston, 1893b: 75  .

Recognition characters: Blackish gray species; length 15–17 mm; mystax black above, white below; thorax gray pollinose laterally, brown pollinose dorsally; scutellar setae white, 2 black bristles; wings with brown aspect; abdomen gray pollinose with large brown pollinose areas dorsally; lateral setae on first abdominal segment white; legs reddish brown with femora black on anterior sides; hind femora usually black with preapical red band that occasionally may be indistinct.

Distribution: ALBANY: Laramie, 1.6 km E, numerous records, 24 June–28 July ( RJL, SD). FREMONT: Lander, WANG, LTA, 2 July 2005 ( CSU, GMAD). PARK: 1.6 km S Muddy Crk., 22 July 1964 ( CD, BD) (specimen in CAS). PLATTE: Camp Guernsey, WANG, 2001b ( CSU, GMAD). SUBLETTE: Pinedale, 16 km N, 30 July–1 Aug. 1968 ( WAN). TETON: Cottonwood Campground, Snake River Canyon, 20 Aug. 1963 ( LJS, RJL); Grand Teton National Park, 15 Aug. 1931, 26 July 1957 (A & HD - CU). YELLOWSTONE NATIONAL PARK: 15–25 Aug. 1963 ( RCB); Fry Pan Lake, 15 Aug. 1931 ( RHB) (specimen in CAS). Recorded from Wyoming by: Dennis & Lavigne (1976b) (pupal case), (1979, 2007); Dennis et al. (2008) (pupal case); Evans (1970); Geller-Grimm (2018); Martin (1975) (new combination).

Habitat: Douglas fir forest (clearings within the forest where shrubs and grasses are dominant), sagebrush steppe and wheatgrass-needlegrass shrub steppe shrub and grassland vegetation types. Similar habitat to that of M. occidentalis  (see Dennis & Lavigne 1979); rangeland bordering mixed coniferous forest (see Martin 1975).

Ethology: Forages from both the ground and vegetation, depending on the temperature of the ground (see Dennis & Lavigne 1979).

Prey: COLEOPTERA  , DIPTERA  , HEMIPTERA (Heteroptera, Homoptera)  , HYMENOPTERA  , LEPIDOP- TERA, NEUROPTERA (see Dennis & Lavigne 1979).

SD

San Diego Natural History Museum

CSU

Colorado State University

CAS

California Academy of Sciences

WAN

Forest Research Station

LJS

Scientific Research Centre

RCB

RIKEN Cell Bank

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Asilidae

Genus

Machimus

Loc

Machimus callidus (Williston)

Lavigne, Robert J. & Dennis, Steve 2019
2019
Loc

Tolmerus callidus

Williston, S. W. 1893: 75
1893