Allotrichoma (Allotrichoma) wallowa, Mathis, Wayne N. & Zatwarnicki, Tadeusz, 2012

Mathis, Wayne N. & Zatwarnicki, Tadeusz, 2012, Revision of New World Species of the Shore-fly Subgenus Allotrichoma Becker of the Genus Allotrichoma with Description of the Subgenus Neotrichoma (Diptera, Ephydridae, Hecamedini), ZooKeys 161, pp. 1-101 : 59-65

Allotrichoma (Allotrichoma) wallowa sp. n. Figs 6974

Description.

This species is distinguished from congeners by the following combination of characters: Small shore flies, body length 1.30-1.95 mm. Head: Medial facial carina above facial prominence shallow; labella broad, fleshy, shorter than mediproboscis; clypeus microtomentose, usually gray.

Thorax: Presutural supra-alar seta present. Pleural area lacking stripes. Wing with costal vein ratio 0.32-0.38; M vein ratio 0.43-0.50. Legs blackish brown to black; midtibia bearing numerous, erect setae along dorsal surface.

Abdomen: Male 5th sternal flap in lateral view (Fig. 70) moderately elongate, bearing 3 long setulae apically; 5th medial process in lateral view (Fig. 70) very elongate, nearly straight, apex widened, bearing 4-5 apical setulae. Male terminalia (Figs 69, 71-73): Epandrium in posterior view (Fig. 69) rounded dorsally, constricted laterally at base of surstyli; epandrium in lateral view (Fig. 73) somewhat rectangular dorsally with anterior and posterior margins parallel sided, ventral portion with an anterior bulge and a narrow, sharp incision at about level of base of surstylus; cerci in posterior view (Fig. 69) approximate dorsally then extended laterally to form a lyre-like structure that curves laterally than ventrally, apex of cercus bearing 2 short setulae; cercus in lateral view (Fig. 73) shallowly sinuous, nearly parallel sided, apex not expanded, bluntl y rounded; surstyli (ventral extensions of epandrium) in posterior view as relatively wide at base third, thereafter ventrally abruptly narrowed, especially along medial margin, to form an elongate process that is slightly spatulate apically, apical portion bearing several short setulae; surstylus in lateral view (Fig. 73) moderately narrow, slightly expanding with apex obliquely pointed, anteroventral surface of apex shallowly emarginate, bearing several, very short setulae; aedeagus in ventral view (Fig. 71) elongate, narrowly ovate, very slightly tapered apically, in lateral view (Fig. 72) elongate, nearly parallel sided, apex bluntly rounded; phallapodeme in lateral view (Fig. 72) triangular, keel abruptly tapered to narrow, digitiform apex; gonite in ventral view (Fig. 71) almost bar-like, wider basally, apex broadly rounded, with short, medial process, apex bearing setula, in lateral view (Fig. 72) only slightly wider basally, nearly straight, slightly tapered to blunt apex that is medially notched, producing a shallowly bifurcate apex, anterior and posterior process of shallow bifurcation bearing a single setula.

Type material.

The holotype male is labeled "USA. OREGON. Baker: Goose Creek [35 km E Baker City] (44°49.2'N, 117°27.79'W; 825 m), 7Jun2006, D. & W. N. Mathis/HOLOTYPE ♂ Allotrichoma wallowa W. Mathis & T. Zatwarnicki USNM [red]/USNM ENT 00117961 [plastic bar code label]." The holotype male is double mounted (minuten in a block of plastic elastomer), is in excellent condition, and is deposited in the USNM. Thirty-seven paratypes (32♂, 5♀; USNM) bear the same locality label as the holotype. Other paratypes are as follows: OREGON. Harney: Page Springs Campground, Blitzen River (42°47'N, 118°51'W; 1300 m), 6 Aug 2005, D. and W. N. Mathis (49♂, 7♀; USNM); Pikes Creek (42°34.5'N, 118°31.7'W; 1320 m), 7 Aug 2005, D. and W. N. Mathis (3♂, 4♀; USNM).

Type locality.

United States. Oregon Baker: Goose Creek (35 km E Baker City; 44°49.2'N, 117°27.79'W; 825 m).

Other specimens examined from the New World.

CANADA. ALBERTA. Okotoks, Sheep River (50°44.4'N, 113°51.3'W), 27 Jun 1968, W. W. Wirth (2♂; USNM).

MEXICO. BAJA CALIFORNIA. Sierra San Pedro Martir (La Grulla; 31°38'N, 116°26'W; 2100 m), 12 Jun 1953, P. H. Arnaud, Jr. (1♂, 2♀; USNM).

OAXACA. Oaxaca (16°58'N, 96°44'W), 2 May 1965, H. V. Weems (1♂, 1♀; USNM).

UNITED STATES. ARIZONA. Maricopa: Tempe (33°24.9'N, 111°54.6'W), 11 May 1942, A. L. Melander (2♂; USNM). Pima: Sabino Canyon (32°18.6'N, 110°49.3'W), 5 May 1942, A. L. Melander (2♂; USNM). Santa Cruz: Nogales (31°20.4'N, 110°56'W), 28 Jun 1953, W. W. Wirth (1♂, 1♀; USNM).

CALIFORNIA. Calaveras: Milton (38°01.9'N, 120°51.1'W), 21 Oct 1917, J. C. Bradley (5♂; USNM). Del Norte: Panther Flat, Middle Fork Smith River (41°50.6'N, 123°56'W), 3 Jun 2009, D. and W. N. Mathis (3♂; USNM). Humboldt: Grizzly Creek Redwoods State Park (40°29'N, 123°54.4'W), 11 Aug 1953, P. H. Arnaud, Jr. (1♂; USNM). Imperial: Brawley (32°58.7'N, 115°31.8'W), 7 Apr 1959, E. I. Schlinger (2♂, 1♀; USNM). Kern: Onyx (35°41.4'N, 118°13'W), 23 Jul 1939, D. E. Hardy (2♂, 1♀; USNM). Los Angeles: Littlerock (37°31.3'N, 117°59'W), 30 Mar 1953, A. H. Sturtevant (1♂; USNM); Palmdale (34°34.8'N, 118°07'W), 30 Sep 1953, A. H. Sturtevant (1♂; USNM); Saugus (34°24.7'N, 118°32.4'W), 10 Apr 1953, A. H. Sturtevant (1♂; USNM). Lake: Clear Lake (39°03.7'N, 122°49.6'W), 18 Jun– 11 Oct 1935, 1947, A. L. Melander, W. W. Wirth (4♂, 7♀; USNM). Mendocino: Russian River near Hopland (32°10.4'N, 116°51.8'W), 4 May 1968, W. J. Turner (11♂, 9♀; USNM, WSU). Mono: Mammoth lakes (37°36.3'N, 119°0.7'W), 29 Jul 1940, L. J. Lipovsky (1♂; USNM); Mono Lake (S shore; 38°01'N, 119°03.6'W), 12 Aug 1980, R. S. Zack (2♂; WSU). Napa: Monticello Dam (38°30.8'N, 122°06.2'W), 3 Nov 1962, M. E. Irwin (1♂; USNM). Orange: Silverado Canyon (33°45.4'N, 117°40.6'W), 12 Oct 1963, M. E. Irwin (2♂; USNM). Riverside: Agua Caliente (33°49.4'N, 116°32.7'W), 25 Feb 1970, P. H. Arnaud, Jr. (2♂; USNM); Andreas Canyon (33°45.7'N, 116°32.2'W), 25 Feb 1954, A. L. Melander (1♂; USNM); Cathedral Canyon (33°46.8'N, 116°27.9'W), 3 Apr 1945, A. L. Melander (1♂; USNM); Magnesium Spring Canyon (near Indio; 33°43.2'N, 116°13'W), 5 Apr 1945, A. L. Melander (1♂; USNM); Morongo Valley (33°57.6'N, 116°31.5'W), 26 Sep 1944, A. L. Melander (1♂; USNM); Riverside (33°58.8'N, 117°22.4'W), 24 May 1950, A. L. Melander (1♂; USNM); Temecula (33°29.6'N, 117°08.9'W), 25 May 1975, T. W. Fisher (1♂, 1♀; USNM); Thousand Palms (33°48.7'N, 116°22.6'W), 18 Mar 1964, P. Rauch (1♂; USNM). Sacramento: Isleton (38°09.7'N, 121°36.7'W), 15 Oct 1967, M. S. Wasbauer (1♀; USNM). San Bernardino: Barton Store (32°10.4'N, 116°51.8'W), 23 Aug 1952, A. L. Melander (1♀; USNM); Chino (33°59'N, 117°39.9'W), 6 Nov 1928, A. H. Sturtevant (1♀; USNM); Jenks Lake (34°09.9'N, 116°52.9'W), 7 Sep 1950, A. L. Melander (1♂; USNM); Saratoga Spring (35°40.9'N, 116°25.3'W; 100 m), 31 Mar 2005, D and W.N. Mathis (2♂, 7♀; USNM); Victorville (34°32.2'N, 117°17.5'W), 10 May 1952, A. H. Sturtevant (2♂; USNM). San Diego: Borrego (33°13.2'N, 116°20.1'W), 2 May 1945, A. L. Melander (1♂; USNM); El Cajon (32°47.7'N, 116°57.8'W), 8 Aug 1944, A. L. Melander (2♂, 1♀; USNM); El Capitan (32°52.1'N, 116°55'W), 25 Sep 1955, P. H. Arnaud, Jr. (10♂, 6♀; USNM); Gavilan Hills (33°47'N, 117°22.1'W), 1 Oct 1952, A. L. Melander (3♀; USNM); Pala (33°21.8'N, 117°04.5'W), 6 Jun 1945, A. L. Melander (1♂, 1♀; USNM); Palm Canyon (33°13.2'N, 116°20.1'W), 27 Feb 1935, A. L. Melander (1♂, 1♀; USNM). Shasta: Shasta Lake (40°40.8'N, 122°22.3'W), 8 Apr 1959, M. T. James (3♂, 4♀; USNM). Ventura: Santa Paula (34°21.3'N, 119°03.6'W), 8 May 1952, A. H. Sturtevant (1♂; USNM). Yolo: Davis (38°32.7'N, 121°44.1'W), 11 Jul 1953, E. I. Schlinger (1♂; USNM); Elkhorn Ferry (38°42.5'N, 121°37.1'W), 16 Apr 1952, E. I. Schlinger (1♂; USNM).

COLORADO. Montezuma: McPhee Reservoir (37°29.7'N, 108°33'W; 2115 m), 3 Aug 2007, D. and W. N. Mathis (1♂, 2♀; USNM).

IDAHO. Idaho: Little Salmon River (42°25'N, 116°18.9'W), 26 Jun 1986, R. S. and V. L. Zack (2♂, 1♀; WSU). Kootenai: Fernan lake (47°40.4'N, 116°44.7'W), 15 Jul 1968, W. N. Mathis (1♂, 1♀; USNM). Latah: Potlatch River, 1.6 km N Kendrick; 46°55.3'N, 116°53.9'W), 8 Jun 1989, R. S. Zack (5♂, 4♀; WSU); Strychnine Creek (NE Harvard; 46°56.6'N, 116°38.4.7'W), 29 Apr-14 Jul 1980, 1981, R. S. Zack (2♂, 1♀; WSU). Nez Pierce: Hatwai Creek (8 km E Lewiston; 46°26'N, 116°54.8'W), 31 Jul 1984, W. J. Turner (1♂; WSU). Oneida: Curlew Valley Reservoir (42°04.5'N, 112°32.5'W), G. F. Knowlton (1♂, 2♀; USNM).

MINNESOTA. Le Suer: Ottawa (44°22.9'N, 93°56.8'W), 18-19 Jul 1922, W. E. Hoffmann (1♂; USNM).

MONTANA. Gallatin: Three Forks (43°53.6'N, 111°33.1'W), 1 Aug 1948, A. L. Melander (1♂; USNM).

NEVADA. Clark: Henderson (36°2.3'N, 114°58.9'W), 15 May 2004, D. Mathis (1♂, 4♀; USNM). Las Vegas Wash (36°05.2'N, 114°58.8'W), 11 Apr-11 May 2001, 2005, D. and W. N. Mathis (14♂, 6♀; USNM); Red Rock Canyon (36°09.8'N, 115°31.1'W), 12 May 2001, D. and W. N. Mathis (1♂; USNM). Nye: Ash Meadows National Wildlife Refuge (36°26.7'N, 116°21'W), 12 May 2001, D. Mathis (6♂, 3♀; USNM).

NEW MEXICO. Catron: Gila River (33°13.6'N, 106°15.1'W; 1750 m), 15 Aug 2007, D. and W. N. Mathis (7♂; USNM). Cibola: Bluewater Lake State Park (35°18.1'N, 108°06.6'W; 2220 m), 9 Aug 2007, D. and W. N. Mathis (3♂; USNM). Colfax: Cimarron (36°30.6'N, 104°55'W), 26 May 1969, W. W. Wirth (1♂, 3♀; USNM). Grant: Mimbres River (NM Hwy. 61 and Royal John Mine Road; 32°43.8'N, 107°52'W; 1665 m), 2-22 Aug 2007, 2008, 2009, D. and W. N. Mathis (54♂, 1♀; USNM); Mimbres River (NM Hwy. 35; 19 km N NM Hwy 152; 32°56.9'N, 108°01.1'W; 1912 m), 2 Aug 2008, D. and W. N. Mathis (17♂; USNM); Silver City (Big Ditch; 32°46.4'N, 108°16.5'W; 1790 m), 14 Aug 2007, D. and W. N. Mathis (1♂; USNM). San Juan: Navajo Dam (San Juan River; 36°48.4'N, 107°36.8'W; 1743 m), 4 Aug 2007, D. and W. N. Mathis (1♂; USNM). Sandoval: La Cueva (Junction of Highways 126 and 4; 35°52'N, 106°38.4'W; 2342 m), 7 Aug 2007, D. and W. N. Mathis (1♂; USNM). Socorro: Socorro (34°04.3'N, 106°54.4'W), S. W. Williston (1♂; USNM).

OREGON. Benton: Cary's Grove (44°22.6'N, 123°36.1'W), 2 Sep 1974, W. N. Mathis (2♂, 3♀; USNM). Douglas: North Umpqua River (42°43.2'N, 122°60'W; 250 m), 31 Jul 2005, D. and W. N. Mathis (12♂, 9♀; USNM). Harney: (43°10'N, 119°0.1'W), 29 Jun 1953, A. B. Gurney (1♂, 1♀; USNM); Mickey Springs (42°40.6'N, 118°20.7'W; 1235 m), 12 Sep 1981, R. S. Zack (1♂; WSU); Page Springs Campground, Blitzen River (42°47'N, 118°51'W; 1300 m), 6 Aug 2005, D. and W. N. Mathis (6♂, 4♀; USNM); Steens Mountain, Fish Lake Campground (42°44.3'N, 118°38.7'W; 2250 m), 6 Aug 2005, D. and W. N. Mathis (1♂; USNM). Josephine: Grants Pass (42°26.3'N, 123°19.7'W), 4 Aug 1952, H. A. Scullen (4♂, 2♀; OSU). Klamath: Klamath River (12 km W Keno; 42°07.6'N, 121°56'W), 27 Jul 1988, R. Danielsson (1♂; ZIL); Odell Lake (43°34.4'N, 121°60'W), 26 Jul 1988, R. Danielsson (1♂; ZIL). Lake: Lakeview (43.5 km E; Drake Creek; 42°11'N, 119°59.3'W), 29 Jul 2005, D. and W. N. Mathis (2♂; USNM). Malheur: Nyssa (43°52.6'N, 116°59.7'W), 16 Jul 1940, H. A. Scullen (1♂; OSU). Union: Ladd Canyon (45°12.8'N, 118°01.6'W; 1295 m), 30 Jul 1977, E. J. Davis, R. S. Zack (1♂; WSU).

SOUTH DAKOTA. Mellette: Little White River (43°43.7'N, 100°39.6'W), 4 Jun 1969, W. W. Wirth (2♂, 3♀; USNM).

TEXAS. Blanco: Miller Creek (30°15.2'N, 98°31.7'W; 410 m), 3 Jun 2004, W. N. Mathis (16♂, 3♀; USNM); Twin Sisters (30°00.2'N, 98°24.3'W), 25 May 1918, J. C. Bradley (1♂; USNM). Kimble: Junction (30°29.4'N, 99°46.3'W), 4 Jul 1986, R. S. Zack (1♂; WSU); Junction (South Llano River; 30°29.5'N, 99°45.4'W), 4-6 Jul 1986, R. S. Zack (10♂, 13♀; WSU); Junction (South Llano River; 30°29.6'N, 99°45.1'W; 510 m), 4 Jun 2004, W. N. Mathis (6♂, 1♀; USNM). Kinney: Del Rio (30 km E; Pinto Creek; 29°20'N, 100°31.6'W), 5 Jun 2004, W. N. Mathis (1♂, 1♀; USNM). Llano: Enchanted Rock (30°30.4'N, 98°49.1'W), 15 Jun 1953, W. W. Wirth (2♂; USNM). Travis: Austin (Zilker Park; 30°15.8'N, 97°46.3'W), 2 Jun 2004, W. N. Mathis (5♂, 3♀; USNM). Val Verde: Comstock (16 km N, Pecos River; 29°53.7'N, 101°09.1'W), 4 Jun 2004, W. N. Mathis (1♂; USNM).

UTAH. Carbon: Deadman Canyon (16 km NE Price; 39°41.7'N, 110°44'W; 2055 m), 19 Aug 2009, T. Zatwarnicki (1♂; USNM). Box Elder: Brigham City (41°30.6'N, 112°0.9'W), 26 May 1943, G. F. Knowlton (1♂; USNM). Emery: Green River (Green River; 38°59.6'N, 110°08.5'W; 1240 m), 31 Jul 2007, D. and W. N. Mathis (14♂, 1♀; USNM); Green River (3.3 km N, 39°01.7'N, 110°09.7'W; 1253 m), 30 Jul-16 Aug 2007, 2008, D. and W. N. Mathis (32♂, 3♀; USNM); San Rafael River (22.5 km SW Green River; 38°55.7'N, 110°24.5'W; 1270 m), 31 Jul 2007, D. and W. N. Mathis (7♂; USNM). Garfield: Boulder Mail Trail/Upper Calf Creek Falls (37°52.3'N, 111°28.3'W), 12 Jul 2000, M. Moody, C. R. Nelson (7♂; BYU); Last Chance Creek Junction, Smoky Mountain Road (37°20.8'N, 111°31.6'W; 1920 m), 19 Jun 2000, E. C. Green, W. N. Mendel (1♂; BYU); Upper Calf Creek Falls (37°02.6'N, 111°26.3'W), 2 Aug 2000, E. C. Green, M. Moody (1♂; BYU); Willow Tank-Hurricane Wash (37°23.2'N, 111°08'W; stock tank), 22 May 2001, D. and W. N. Mathis (1♂; USNM); 40-Mile Spring/Tank (69 km SE Escalante; 37°21'N, 111°4.9'W), 22 May 2001, D. and W. N. Mathis (2♂; USNM). Grand: Crystal Geyser (14.5 km SE Green River; 38°56.3'N, 110°08.1'W), 15 Aug 2008, D. and W. N. Mathis (4♂; USNM); Swasey Beach (15.3 km N Green River; 39°07'N, 110°06.6'W; Green River; 1255 m), 29 May-15 Aug 2007, 2008, D. and W. N. Mathis (31♂, 8♀; USNM); Thompson Spring (8.9 km N Thompson Springs; 39°02.3'N, 109°43.4'W; 1740 m), 1-20 Aug 2007, 2008, 2009, D. and W. N. Mathis, T. Zatwarnicki (16♂; USNM). Kane: Drip Tank Canyon (37°19.4'N, 111°31.8'W), 15 May 2001, D. and W. N. Mathis (15♂, 2♀; USNM); Drip Tank Canyon (37°19.4'N, 111°32'W), 5-6 Jul 2000, C. R. Nelson (3♂; BYU); East Fork of Virgin River (26.6 km N Kanab; 37°12.2'N, 112°41.4'W) 18 May 2001, D. and W. N. Mathis (10♂, 2♀; USNM); Kanab Canyon (6.5 km N Kanab; 37°08.7'N, 112°32.4'W), 14 May 2001, D. and W. N. Mathis (3♂; USNM); Seaman Wash at spring (37°07'N, 112°15'W; 1980 m) 13 Jul 2000, E. C. Green, W. N. Mendel (2♂; USNM); White House Spring (71 km E Kanab; 37°04.8'N, 111°53.4'W; 1250 m) 19 May 2001, D. and W. N. Mathis (2♂; USNM). Salt Lake: Midvale (40°36.6'N, 111°53.4'W), 29 Sep 1951, G. F. Knowlton (1♂; USNM). Washington: Beaver Dam Wash, Lytle Ranch (35°53.7'N, 113°55.3'W), 16 May 1987, D. E. Hardy (1♂; BYU); Shivwits (37°10.9'N, 113°45.4'W), 18 Jul 1970, W. J. Hanson (2♂, 2♀; USU).

WASHINGTON. Adams: Lower Crab Creek (46°54.6'N, 119°17.3'W), 28 Aug 1980, R. S. Zack (3♂, 4♀; WSU); Washtucna (19.5 km W; Sand Hills Coulee Park; 46°43.7'N, 118°39.7'W), 29 Mar 1978, R. S. Zack (2♂; WSU). Asotin: Asotin Creek (46°20.6'N, 117°03.2'W), 4 Jun 1930, J. M. Aldrich (2♂; USNM); Fields Spring State Park (46°04.9'N, 117°10.2'W), 25 Jul 1980, R. S. Zack (1♂; WSU). Benton: Rattlesnake Ridge (46°24.4'N, 119°36.3'W spring), 29 Aug 1994, R. S. Zack (1♂, 3 ♀; WSU); Rattlesnake Spring (46°30.4'N, 119°41.9'W), 21 Jun-17 Oct 1955, 1994, J. J. Davis, R. S. Zack (3♂, 6♀; USNM, WSU); Snively Spring, Hanford (46°27.1'N, 119°42.8'W), 24 Apr 1995, R. S. Zack (1♂, 16♀; WSU); West Richland (46°18.3'N, 119°21.7'W), 20 Jul 1973, N. E. Woodley (1♀; WSU). Chelan: Lake Chelan (47°50'N, 120°0.8'W), 30 Jul 1919, A. L. Melander (2♂, 1♀; USNM). Franklin: Handford Reach, Columbia River (46°24.6'N, 119°15.5'W), 20 Jul 2009, D. Mathis (10♂, 5♀; USNM); Levey (Snake River; 46°05'N, 118°52'W), 27 Jul 1992, D. Mathis (20♂; USNM); Palouse Falls (46°39.8'N, 118°13.4'W), 22 May 1971, W. N. Mathis (1♂; USNM); Pasco (3.2 km E; 46°51.1'N, 119°04.3'W), 8 Aug 1975, W. N. Mathis (2♂, 1♀; USNM); Pasco (NW; 46°21.5'N, 119°15.5'W), 29 Jul 1998, W. N. Mathis (17♂; USNM); Ringold (NW Pasco; 46°30.4'N, 119°15.3'W), 30 Jul 1998, W. N. Mathis (9♂, 1♀; USNM); Sacajawea State Park (46°12'N, 119°02.4'W; 100 m), 6 Jun 2006, D. and W. N. Mathis, T. Zatwarnicki (21♂, 9♀; TZ, USNM). Grant: Beverly (Columbia River; 46°50.4'N, 119°56.4'W), 29 May 2006, D. and W. N. Mathis (1♂, 1♀; USNM); Columbia National Wildlife Refuge (46°51.1'N, 119°32.2'W), 13 May 1959, H. F. Harwood (1♂, 5♀; USNM, WSU); Columbia National Wildlife Refuge (Mallard Lake; 46°51.1'N, 119°32.2'W), 12 Jul 1977, R. S. Zack (1♂; WSU); Crab Creek (4.8 km E Beverly; 46°50'N, 119°52'W), 30 May 2006, D. and W. N. Mathis (9♂; USNM); Crab Creek, lower, near Black Lake (46°50'N, 119°52'W), 28 Aug 1980, R. S. Zack (1♂; WSU); Othello (3.2 km W; 46°49.6'N, 119°13.4'W), 25 Jul 1992, R. S. Zack (3♂; WSU); Royal City (8 km W; 46°54'N, 119°47'W), 13 Jul 1978, R. S. Zack (3♂; WSU); Soap Lake (47°23.5'N, 119°29.1'W), 30 May 2006, D. and W. N. Mathis (1♂, 1♀; USNM); O'Sullivan Dam (46°59'N, 119°17.4'W), 23 May 1954, M. T. James (11♂, 15♀; USNM, WSU). Kittitas: Vantage (Columbia River; 46°56.5'N, 119°59.1'W), 29 May 2006, D. and W. N. Mathis (2♂; USNM). Okanogan: Brewster (48°05.8'N, 117°25'W), 17 Aug 1940, A. L. Melander (3♂, 1♀; USNM); Okanogan (15 km SW, Soap Lake; 48°14.1'N, 119°39'W), 23 Jul 1983, R. D. Akre, R. S. Zack (5♂; WSU). Pend Oreille: Indian Island near Furport (48°14.4'N, 117°10'W), 23 Jun 1982, R. S. Zack (5♂, 3♀; WSU); No Name Lake (48°17.8'N, 117°08.2'W), 23 Jun 1983, R. S. Zack (3♂; WSU). Spokane: Spokane (47°40.4'N, 117°25'W), 28 Aug 1911 (1♂; USNM). Stevens: Chewelah (48°16.6'N, 117°42.9'W), 30 Jun 1972, M. T. James (1♂; WSU). Whitman: Almota (46°42.2'N, 117°28.2'W), 2-28 Jun 1918, 1975, A. L. Melander, W. J. Turner (2♂; USNM, WSU); Pampa pond, 8 km W LaCrosse (46°34.6'N, 118°05'W), 7 Jul 1993, R. S. Zack (1♂; WSU); Steptoe Canyon (46°27.1'N, 117°12.4'W), 24Apr-3 Aug 1974, 1981, W. J. Turner, R. S. Zack (3♂; WSU); Wawawai (46°38.2'N, 117°22.8'W), 20 May 1911, 25 Jul-12 Aug 1957, R. H. Alvarado (6♂, 7♀; USNM, WSU); Willow Creek (13 km W LaCrosse; 46°34.6'N, 118°10'W), 11 Aug 1993, R. S. Zack (2♂, 2♀; WSU). Yakima: Prosser (7.6 km W; 46°11.3'N, 119°53'W), 14 Jun 1989, R. S. Zack (1♂; WSU); Toppenish (46°22.7'N, 120°18.5'W), 24 Apr 1968, J. Turner (3♂; WSU).

Distribution.

(Fig. 74) Nearctic: Canada (Alberta), Mexico (Baja California, Oaxaca), United States (Arizona, California, Colorado, Idaho, Montana, Minnesota, Nevada, New Mexico, Oregon, South Dakota, Texas, Utah, Washington).

Etymology.

The species epithet, wallowa, is a noun in apposition and refers to the Wallowa Mountains in northeastern Oregon. The headwaters of Goose Creek are in the Wallowas.

Remarks.

This species is similar and closely related to Allotrichoma simplex , differing from that species in the shape of the surstylar apex and especially in the shape of the male 5th sternal flap and process.