Paramyia lustrum, Levesque-Beaudin & Mlynarek, 2020

Levesque-Beaudin, Valerie & Mlynarek, Julia J., 2020, Revision of Nearctic Paramyia Williston (Diptera: Milichiidae), Zootaxa 4732 (1), pp. 1-56 : 20-24

Paramyia lustrum , new species

( Fig. 9–10; 28)

Description. ( Fig. 9) Total length ♂ 1.4–1.7 mm, ♀ 1.6–2.3 mm. Overall colour brown to dark brown, frontal tri- angle dark brown, shiny, reaching lunule; frons 1.0–1.13 times longer than wide and 1.9–2.0 times wider than flagellum; width at widest point 2.0–2.1 times the bottom eye width; gena brown with prunescence, 0.12–0.16 times eye height; postgena dark brown, with light prunescence and 0.24–0.28 width of head; scape and pedicel dark brown, first flagellomere subquadrate, same length than width, dark brown with pale pubescence, arista dark brown and 2.0–2.2 times width of first flagellomere; medium facial carina, easily visible laterally; palpus dark brown with 4–5 enlarge setae apically and 1 ventral seta pre-apical, labium brown to dark brown 0.35–40 mm and labella brown 0.45–0.48 mm long.

Scutum shiny brown to dark brown; scutellum dark brown, microsetose; fore femur brown with apical anterodorsal part with a strong circle shape patch yellowish to light brown; fore tibia brown on dorsal and posterior side with base and apex yellowish and anterior side light brown to yellowish; femur and tibia on mid and hind leg brown; all junction of femur and tibia (“knee”) yellowish; all tarsi yellowish; hind basitarsus shorter than length of tarsi 2–4 combined; haltere uniformly brown; wing 1.42–1.50 mm long; abdomen shiny dark brown with first tergite often slightly paler.

Male postabdomen ( Fig. 10). Epandrium in lateral view 1.06 times higher than wide, in posterior view 2.3 times wider than high (before cerci), small setae densely covering posterior portion of epandrium mixed with a low density of large setae; surstylus 1.2 times as high as epandrium, paddle shape with a large circular structure situated basally with lots of short markings within and a distinct dent on the anterior side of the apical portion, setae medium length, covering anterior side and distal half of surstylus; cerci small and slightly blunt apically, 0.6 times length of surstylus in posterior view, with a pair of very long preapical setae and other shorter setae, less than 1/3 its length, apically swollen in lateral view.

Molecular barcode sequence can be accessed through GenBank Accession: KR391632 and BOLD BIN: BOLD: AAG0176 (average p-distance within BIN: 0.09%). Distribution ( Fig. 28). Widespread throughout North America Type material. Holotype ♂. CANADA: Quebec: St-Charles Bog , 22.vi.2006, A.G. Taillefer, sweep, (formerly in LEMQ, now deposited in CNC) [LEM-0043800].

Paratypes. CANADA: Nova Scotia: Kejimkujik, Grafton Lake, 44.383°N, 65.2023°W, 103m, 1♀, 03.viii.2009, BIObus 2009 (BIOUG); Ontario: Frontenac Co., Skycroft Campground, 5km W Chaffeys Locks, 44.55°N, 76.3667°W, 2♂, 14–19.vii.1987, B. Hubley, Malaise trap (ROM), Guelph, U of G Arboretum, 43.54°N, 80.21°W, 1♂, 22–29.vi.2008, B.V. Brown, unbaited pitfalls (DEBU), Hilton Township, Tendy Bay, 46.09°N, 83.92°W, 1♂, 27.viii.1994, J.E. Swann, Malaise trap (ROM), Mer Bleu, 5 mi. E. Ottawa, 45.39°N, 75.51°W, 1♂, 6.viii.1966, D.D. Munroe, Malaise trap (CNC), 1♂, 11.vii.1966, D.D. Munroe, Malaise trap (CNC), 1♂, 25.vi.1964 (CNC), 1♂, 29.vii.1966, D.D. Munroe, Malaise trap (CNC), 2♂, 17.vii.1966, D.D. Munroe, Malaise trap (CNC), 1♂, 25.vii.1966, D.D. Munroe, Malaise trap (CNC), Oliver bog, 3km S. Galt, 43.34°N, 80.3°W, 1♂, 27.vi–4.vii.2006, D. Blades (DEBU), 1♂, 3–10.vii.2006, D. Blades (DEBU), Ottawa, 45.43°N, 75.68°W, 1♂, 30.viii.1993, J.R. Vockeroth (CNC), 1♂, 8.viii.1993, J.R. Vockeroth (CNC); Quebec: Johnville Bog and Forest Park, 45.345°N, 71.7417°W, 2♂, 15–22.vii.2005, J. Savage, J. Kuchta, Malaise trap (LEMQ), Reserve ecologique des Tourbieres de Lanoraie, 45.9967°N, 73.3°W, 3♂, 10–17.vii.2006, A. Moores, Malaise trap (LEMQ), St-Charles Bog, 46.7478°N, 70.995°W, 2♂, 14.vi.2006, A.G. Taillefer, sweep (LEMQ), 2♂, 22.vi.2006, A.G. Taillefer, sweep (LEMQ), Ste-Barbe, Large Teafield, 45.125°N, 74.225°W, 2♂, 17–24.vii.2006, A. Moores, Malaise trap (LEMQ). UNITED STATES: Florida: Alachua Co., Chantilly Acres, 29.71°N, 82.42°W, 1♂, 25.iv.1970, W.W. Wirth, Malaise trap (USNM), Gaines- ville, 29.65°N, 82.32°W, 1♂, 21–30.vi.2006, W. Mason, Malaise trap (DEBU), Highlands Co., Archbold Biol. Sta, 27.18°N, 81.35°W, 1♂, 13–20.vii.2012, S.M. Paiero, Malaise trap (DEBU), Ocean Pond, Olustee, 30.21°N, 82.45°W, 1♂, 29.vi.1953, M.R. Wheeler (AMNH), Orange Co., Rock Springs, 28.76°N, 81.5°W, 1♂, 21.iv.1970, W.W. Wirth (USNM), Sebring, Highlands Hamm State Park, 27.47°N, 81.53°W, 2♂, 15.iv.1970, W.W. Wirth, Mal- aise trap (USNM); Illinois: Macomb, 40.46°N, 90.68°W, 1♂, 29.v.1962, W.W. Wirth (USNM); Indiana: La Fayette, 40.42°N, 86.87°W, 1♂, 4.ix.1916, J.M. Aldrich (USNM); Maryland: Montgomery Co., Bethesda, 38.99°N, 77.1°W, 1♂, 20.vii.1968, G. Steyskal (USNM); Michigan: Hunt Cr. Exp. Sta. nr. Lewiston, 44.88°N, 84.31°W, 1♂, 20.vii.1942, C.W. Sabrosky (USNM); North Carolina: Bladen Co., Singletary Lake State Park, 34.5833°N, 78.4583°W, 1♂, 19–21.vi.2006, Marshall, Paiero, pan trap (DEBU), Highlands, 35.05°N, 83.2°W, 1158m, 1♂, 29.vi.1957, J.R. Vockeroth (CNC); Tennessee: Cades Cave, GSMNP, 35.59°N, 83.84°W, 1♂, 1.vii–31.viii.1953, J.M. Carpenter (AMNH); Texas: Woodville, 30.76°N, 94.43°W, 1♂, 1–30.ix.1954, M.R. Wheeler (AMNH); Vermont: East Franklin, Lake Carmi State Park, 44.9533°N, 72.8817°W, 1♂, 11–18.vii.2006, A. Moores, Malaise trap (LEMQ); Virginia: Cape Henry, 36.93°N, 76.02°W, 2♂, 28.vi.1939, A.L. Melander (USNM).

Other material examined. CANADA: British Columbia: Lakelse L. bog nr. Terrace, 54.37°N, 128.53°W, 1♂, 14.vi.1960, C.H. Mann (CNC), Skagit Val., 8 mi. W Hope, 49.38°N, 121.44°W, 1♂, 8–15.vii.2001, intercept trap (DEBU); Ontario: Mer Bleu, 5 mi. E. Ottawa, 45.39°N, 75.51°W, 1♂, 6.viii.1966, D.D. Munroe, Malaise trap (CNC), 2♂, 19.vii.1966, D.D. Munroe, Malaise trap (CNC), 1♂, 25.vii.1966, D.D. Munroe, Malaise trap (CNC), 17♂, 17.vii.1966, D.D. Munroe, Malaise trap (CNC), 1♂, 15.vii.1966, D.D. Munroe, Malaise trap (CNC), 8♂, 29.vii.1966, D.D. Munroe, Malaise trap (CNC), 3♂, 25.vi.1964, D.D. Munroe, Malaise trap (CNC), 3♂, 25.vi.1964 (CNC), 2♂, 18.viii.1966, D.D. Munroe, Malaise trap (CNC), Mer Bleu, Ottawa, 45.39°N, 75.51°W, 1♂, 26.v.1904, W. Metcalfe (CNC), Mer Bleue, Ottawa, 45.39°N, 75.51°W, 7♂, 25.vii.1963, J.G. Chillcott (CNC), Ottawa, 45.43°N, 75.68°W, 1♂, 31.vii.1989, J.R. Vockeroth (CNC); Quebec: Gatineau Co., Masham Twp., 45.64°N, 76.01°W, 1♂, 6–8.vii.1974, D.M. Wood (CNC), Johnville Bog and Forest Park, 45.345°N, 71.7417°W, 11♂, 1♀, 15–22.vii.2005, J. Savage, J. Kuchta, Malaise trap (LEMQ), 1♂, 28.vii–1.viii.2005, J. Savage, J. Kuchta, Malaise trap (LEMQ), 1♀, 6.vi–1.vii.1992, J. Savage, J. Kuchta, Malaise trap (LEMQ), 1♂, 9–13.vi.2006, J. Savage, J. Kuchta, Malaise trap (LEMQ), 1♂, 26.viii–2.ix.2013, J. Savage, J. Kuchta, Malaise trap (LEMQ), 1♂, 29.vi–3.vii.1986, J. Savage, J. Kuchta, Malaise trap (LEMQ), 6♂, 1♀, 22–26.vii.2005, J. Savage, J. Kuchta, Malaise trap (LEMQ), 1♂, 22– 30.vii.2013, J. Savage, J. Kuchta, Malaise trap (LEMQ), 1♂, 13.v–21.vii.1983, J. Savage, J. Kuchta, Malaise trap (LEMQ), Ogden, Marlington Bog, 45.04°N, 72.1733°W, 1♂, 27.vi–4.vii.2006, A. Moores, pan trap (LEMQ), Old Chelsea, Summit King Mt., 45.49°N, 75.86°W, 351m, 1♂, 25.vi.1962, J.R. Vockeroth (CNC), Reserve ecologique des Tourbieres de Lanoraie, 45.9967°N, 73.3°W, 1♀, 26–28.vii.2005, A. Moores, Malaise trap (LEMQ), 1♂, 10– 17.vii.2006, A. Moores, pan trap (LEMQ), 41♂, 10–17.vii.2006, A. Moores, Malaise trap (LEMQ), St-Charles Bog, 46.7478°N, 70.995°W, 35♂, 2♀, 22.vi.2006, A.G. Taillefer, sweep (LEMQ), 4♂, 14.vi.2006, A.G. Taillefer, sweep (LEMQ), Ste-Barbe, Large Teafield, 45.125°N, 74.225°W, 30♂, 17–24.vii.2006, A. Moores, Malaise trap (LEMQ), 2♂, 18–25.vi.2014, A. Moores, Malaise trap (LEMQ), 1♂, 3–7.viii.1936, A. Moores, Malaise trap (LEMQ), 6♂, 2♀, 3–10.vii.2006, A. Moores, Malaise trap (LEMQ). UNITED STATES: Arizona: 10 mi. NW Flagstaff, San Francisco Mts, 35.34°N, 111.68°W, 2896m, 1♂, 18–21.vii.1983, S. Peck, J. Peck, Malaise trap (DEBU); Arkansas: Lo- gan Co., Ozark National Forest, Magazine Mountain, 35.17°N, 93.64°W, 1♂, 23.vi–31.viii.1995, J.E. Swann, flight interception trap (ROM); District of Columbia: Washington, Rock Creek Park, 38.94°N, 77.05°W, 1♂, 4.viii.1956, P.H. Arnaud, Jr. (USNM); Florida: Archbold Biol. Sta., 27.18°N, 81.35°W, 1♂, 28.iv.1967, B.V. Peterson (CNC), 1♂, 29.iv.1967, B.V. Peterson (CNC), Sebring, Highlands Hamm State Park, 27.47°N, 81.53°W, 4♂, 15.iv.1970, W.W. Wirth, Malaise trap (USNM); Georgia: Forsyth, 33.03°N, 83.94°W, 2♂, 2.vi.1970 (CNC), Warwoman Creek, 34.89°N, 83.29°W, 1♂, 4.viii.1957, W.R.Richards (CNC), Waycross, 31.2°N, 82.4°W, 1♂, 30.vi.1953, M.R.Wheeler (AMNH); Illinois: Carlinville, 39.27°N, 89.86°W, 1♂, 1–31.vii.1956, M.R. Wheeler (AMNH), Macomb, 40.46°N, 90.68°W, 1♂, 29.v.1962, W.W. Wirth (USNM); Indiana: La Fayette, 40.42°N, 86.87°W, 1♂, 8.vii.1916, J.M. Al- drich (USNM), 1♂, 24.viii.1916, J.M. Aldrich (USNM); Maryland: Colesville, 39.08°N, 77°W, 1♂, 14.vi.1975, W.W. Wirth, Malaise trap (USNM), Montgomery Co., Bethesda, 38.99°N, 77.1°W, 1♂, 20.vii.1968, G. Steyskal (USNM), 1♂, 24.viii.1970, G. Steyskal (USNM), Montgomery Co., Colesville, 39.08°N, 77°W, 1♂, 13.viii.1977, W.W. Wirth, Malaise trap (USNM), Prince Georges Co., Patuxent Wildlife Research Center, 39.03°N, 76.8°W, 1♂, 8.vii.1978, W.W. Wirth (USNM); Michigan: Gd. Traverse Co., 44.76°N, 85.62°W, 1♂, 19.vii.1953, G. Steyskal (USNM); New Hampshire: Strafford Co., Spruce Hole, 3 mi. SW Durham, 43.14°N, 70.92°W, 1♂, 3–7.vi.1974, D.S. Chandler, flight interception trap (DEBU); New York: Lake Placid, 44.28°N, 73.98°W, 1♂, 19.vii.1962, J.G. Chillcott (CNC), 1♂, 28.vii.1929,A.L. Melander (USNM); North Carolina: Bladen Co., Singletary Lake State Park, 34.5833°N, 78.4583°W, 1♂, 19.vii–5.viii.1986, Marshall, Paiero, pan trap (DEBU), Macon Co., Highlands Lake Ravenel, 35.06°N, 83.19°W, 1♂, 14.vi.1986, W.W. Wirth, Malaise trap (USNM), Macon Co., Highlands Wightman Cottage, 35.05°N, 83.19°W, 2♂, 10.vii.1987, W.W. Wirth, UV light trap (USNM); Texas: San Jacinto Co., 6km S Coldspring, Double Lake Camp, 30.55°N, 95.13°W, 2♂, 22.v–8.vii.1983, S. Peck, J. Peck, flight interception trap (DEBU), San Jacinto Co., Coldspring, Double Lake Camp, 30.55°N, 95.13°W, 2♂, 22–26.vi.1974, S. Peck, J. Peck, flight interception trap (DEBU), Woodville, 30.76°N, 94.43°W, 1♂, 1–30.ix.1954, M.R. Wheeler (AMNH); Vermont: East Franklin, Lake Carmi State Park, 44.9533°N, 72.8817°W, 6♂, 2♀, 11–18.vii.2006, A. Moores, Malaise trap (LEMQ); Virginia: Cape Henry, 36.93°N, 76.02°W, 6♂, 28.vi.1939, A.L. Melander (USNM), Chain Bridge, 38.93°N, 77.11°W, 1♂, 20.viii.1922, J.R. Malloch (USNM), Falls Church, Holmes Run, 38.85°N, 77.19°W, 1♂, 2.vi.1962, W.W. Wirth, light trap (USNM), 1♂, 6.viii.1961, W.W. Wirth, light trap (USNM), 1♂, 23.viii.1961, W.W. Wirth, light trap (USNM), 1♂, 17.ix.1961, W.W. Wirth, light trap (USNM), Suitland bog, 38.84°N, 76.9°W, 4♂, 14.vi.1951, W.W. Wirth (USNM); West Virginia: Franklin, 38.64°N, 79.33°W, 1♂, 26.vi.1951, W.W. Wirth (USNM).

Etymology. The species name lustrum , a Latin noun, refers to bogs from which most of the species have been collected.

Remarks. The male genitalia are similar to those of Paramyia silvestris . Paramyia lustrum has a lot more marking within the overall surface of circular structure ( Fig. 10D). The surstylus is often twisting and not flat in appearance; take care to adjust the position to see the anterior edge properly. Genitalia often tucked within the abdomen, making it harder to see all characters.

Females of Paramyia anguliloba , P.lustrum , P. nitens , P. rectiloba , P. silvestris , P. wheeleri can only be reliably identified through sequencing.