Promachus dimidiatus Curran

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: 59-60

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-B818-E527-63F1-FADD607BFD44

treatment provided by

Plazi

scientific name

Promachus dimidiatus Curran
status

 

Promachus dimidiatus Curran 

Promachus dimidiatus Curran, 1927: 87  .

Recognition characters: Grayish black species; length 18–25 mm; mystax yellowish; thorax with a pair of narrow median grayish or pale yellow longitudinal stripes on anterior three-fourths and a broad, suturally interrupted one on either side; scutellar setae long sparse white, bristles in male black, female 3–4 pairs of black bristles, the other yellowish; wings tinged yellowish brown especially towards apex; abdomen in male partly shining black on 2–4, 1–2 and 4–5 mostly white setae with few black setae, 6–8 with considerable black setae; female wholly pale setae; legs dark rusty reddish, gray pollinose, setae white with a few black setae, bristle black.

Distribution: FREMONT: Poison Creek, numerous records, 21 June–22 July ( FRH, RJL, LJS); Shoshoni, 11 km SW, 21–25 June 1973 ( SD). NIOBRARA: Lusk, 19 km NW, July 1895 ( RM-UK). PLATTE: Dwyer, 25 June 1958 ( DRT), 13, 17 July 1959 ( RJL), 13 June 1965 ( FRH), 13 July 1966 ( RJL); Glendo, 10 July 1963 ( LFS); Gray Rocks Ranch, Camp Guernsey, WANG, 14 July–5 Aug. 2008 ( CSU, GMAD); Guernsey, 13 July 1961 ( RJL); Wheatland, 27 July 1965 ( FRH); 35 km W of Wheatland, 9 July 1981 ( RJL). Recorded from Wyoming by: Dennis & Lavigne (1975) (as prey of Stenopogon inquinatus  ), 2007; Dennis et al. (2010); Geller-Grimm (2018); Lavigne & Holland (1969) (as prey of Diogmites angustipennis  ; voucher specimen #14); Tomasovic (2013) (personal communication).

Habitat: Sagebrush steppe shrub and grassland, and grama-needlegrass-wheatgrass grassland vegetation types. Open range, short grass plains area and protected gullies with pine (see Lavigne & Holland 1969); dry intermittent streambed in weedy area adjoining open rangeland.

Ethology: In early morning and late afternoon forages from the soil when soil temperatures are less than 56°C; during midday forages 45 cm or higher above the ground on vertical stalks of shrubs (general, Lavigne & Holland 1969; courtship, Lavigne 2003).

Prey: All records were collected on 23 June 1966 at Dwyer, Wyoming except as noted. DIPTERA  , Asilidae  : Efferia  sp. (male- two records), Scleropogon coyote  ; Tachinidae  : Dinera grisecens (Fall.)  ; HETEROPTERA, Coreidae  : Alydus eurinus Say  ; HYMENOPTERA  , Apidae  : Apis mellifera  L., 31 July 1959; Megachilidae  : Megachile  sp., Shoshoni, 11 km SW, 21 June 1973; Sphecidae  : Podalonia luctuosa (Smith)  ; Sphex procerus (Dahlborn)  , 11 km SW of Shoshoni, 25 June 1973. [ COLEOPTERA  , DIPTERA  , HETEROPTERA (as Hemiptera  ), HYMENOP- TERA, LEPIDOPTERA  (see Lavigne & Holland 1969)].

LJS

Scientific Research Centre

SD

San Diego Natural History Museum

CSU

Colorado State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Asilidae

Genus

Promachus

Loc

Promachus dimidiatus Curran

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

Promachus dimidiatus

Curran, C. H. 1927: 87