Pheneus opacus, (Coquillett, 1904)

Bueno, Gabriel M., Kehlmaier, Christian & Santos, Charles Morphy D., 2021, A worldwide catalog of the Vermileonidae (Diptera: Brachycera), Zootaxa 5060 (4), pp. 489-514 : 502

opacus ( Coquillett, 1904)

Pheneus opacus Coquillett, 1904

Holotype: Male , Orsmsby Co., Nevada, USA ( USNM).

Dist.: USA: widespread in western states, occurring in California; New Mexico in Bandelier National Monument {35°47’N 106°20’W } and Alamogordo {32°53’N 105°57’W }; Nevada in Carson City {39°09’N 119°43’W }; Utah in Zion NP {37°20’N 113°00’W } and Gleendale {37°20’N 112°35’W }; Colorado in Mesa Verde NP {37°13’N 108°28’W } and Colorado National Monument {39°03’N 108°41’W }; and Idaho in Snake River — Jerome Co. [42°29’45.6”N 114°07’51.6”W], Deadwood Reservoir — Valley Co. [44°18’10.8”N 115°38’20.4”W], Sheep Creek [43°41’42.0”N 115°39’39.6”W], Bogus Basin Road [43°43’49.8”N 116°08’20.0”W], Shafer Butte [43°47’26.5”N 116°05’39.1”W] — Boise Co. , Boise [43°36’00.0”N 116°13’00.1”W], Luke Peak Reservoir [43°31’24.2”N 116°04’05.5”W], Macks Creeks [43°36’41.0”N 115°55’54.8”W], Dry Creek [43°41’17.2”N 116°11’10.3”W] — Ada Co. , Elks Flat Camp Ground [43°32’30.8”N 115°17’51.0”W]— Elmore Co .

Refs.: Coquillet, 1904: 21 (des.); Kertész, 1908: 298 (cat. as Pheneus ); Leonard, 1930: 72–73 (redes.); Wheeler, 1930: 175–176 (comparisons between V. opacus and V. comstocki ); DeLeon, 1938: 168 (dist.); Pechuman, 1938: 87–88 (fem. des.), 87 (key); James, 1965: 342 (cat.); Teskey, 1981: 531 (fig.); Nagatomi et al., 1999: 18 (key), 23 (cat.); Petersen & Backer, 2006: 5 (dist.); Kerr, 2010: 58–60, 64 (phyl.); Kehlmaier, 2021: 342 (phyl., dist.).