Paramyia rectiloba Levesque-Beaudin & Mlynarek 2020, new species
Creators: name: Levesque-Beaudin, Valerie
name: Mlynarek, Julia J.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Milichiidae
Paramyia
Paramyia rectiloba

description: Paramyia rectiloba, new species
(Fig. 23–24; 30)
Description. (Fig. 23) Total length ♂ 1.4–1.5 mm, ♀ 1.7–1.8 mm. Overall colour brown to dark brown, frontal tri- angle dark brown to black, shiny, reaching lunule; frons 1.1–1.33 times longer than wide and 1.75–1.8 times wider than flagellum; width at widest point 2.13–2.33 times the bottom eye width; gena brown to dark brown with prunescence, 0.14–0.19 times eye height; postgena dark brown, with light prunescence and 0.23–0.30 width of head; scape and pedicel dark brown, first flagellomere subquadrate to slightly trapezoidal, same length than width, dark brown with pale pubescence, arista dark brown and 1.64–1.82 times width of first flagellomere; moderate facial carina, easily visible laterally; palpus brown to dark brown with 5 enlarge setae apically and 1 ventral seta pre-apical, labium dark brown 0.37–0.43 mm and labella brown and apically paler 0.46–0.48 mm long.
Scutum shiny dark brown; scutellum dark brown, microsetose; fore femur brown with apical antero-dorsal part with a slightly paler circle shape, mid and hind femur brown and all tibia brown; all tarsi light brow to yellowish; hind basitarsus shorter than length of tarsi 2–4 combined; haltere brown and slightly darker apically; wing 1.21–1.33 mm long; abdomen shiny dark brown.
Male postabdomen (Fig. 24). Epandrium in lateral view 1.0 times wider than high, in posterior view 2.4 times wider than high (before cerci), small setae densely covering posterior portion of epandrium mixed with a low density of large setae; surstylus 1.3 times as high as epandrium, rounded rectangular shape with a large circular structure, thicker on the posterior side, situated basally with just a few short markings in the middle, setae medium length, covering anterior side and distal half of surstylus; cerci large and pointed apically, 0.89 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: HQ981642 and BOLD BIN: BOLD: AAG0170 (average p-distance within BIN: 0.36%).
Distribution (Fig. 30). East Coast: Canada: Nova Scotia, Quebec, Ontario; United States: Vermont, New Hampshire, Michigan, Florida / West Coast: Canada: British Columbia; United States: New Mexico
Type material. Holotype ♂. CANADA: British Columbia: 10 mi. E. Creston, 31.vii.1980, G. Gibson, sweeping, (DEBU).
Paratypes. CANADA: British Columbia: 10 km W Kamloops, New Afton Mine, 50.6719°N, 120.533°W, 1♂, 24.vii–1.viii.2013, C. Simon, Malaise trap (BIOUG), 10 mi. E. Creston, 49.1°N, 116.51°W, 4♂, 31.vii.1980, G. Gibson, sweeping (DEBU), 10 mi. E. Osoyoos, 49.03°N, 119.44°W, 1♂, 30.vii.1980, G. Gibson, sweeping (DEBU); Nova Scotia: Halifax, Point Pleasant Park, 44.623°N, 63.5686°W, 30m, 1♀, 14–22.vi.2006, T. Zemlak, Malaise trap (BIOUG), 1♂, 20–27.vii.2013, T. Zemlak, Malaise trap (BIOUG), 1♀, 22–26.vii.2005, T. Zemlak, Malaise trap (BIOUG), 1♂, 20–30.xi.1986, T. Zemlak, Malaise trap (BIOUG), 1♂, 14–19.vii.1987, T. Zemlak, Malaise trap (BIOUG), 1♀, 20.viii–3.ix.2014, T. Zemlak, Malaise trap (BIOUG); Ontario: Frontenac Co., Skycroft Campground, 5km W Chaffeys Locks, 44.55°N, 76.3667°W, 1♂, 14–19.vii.1987, B. Hubley, Malaise trap (ROM), 1♂, 14.viii–7.ix.2003, B. Hubley, Malaise trap (ROM), 1♂, 14–19.vii.2013, B. Hubley, Malaise trap (ROM), Killar- ney Provincial Park, nr hwy 637, 46.01°N, 81.1°W, 1♂, 11.vii.2004, J. Forrest, sweep (LEMQ), Lambton Co., Pinery Provincial Park, Sand dunes, 44.55°N, 76.3667°W, 1♂, 19–26.vii.2006, L. Packer, Malaise trap (ROM), Thousand Islands National Park, 44.4534°N, 75.865°W, 3♂, 1♀, 16–23.vii.2014, M. Brown, Malaise trap (BI- OUG), 3♂, 30.vii–8.viii.2014, M. Brown, Malaise trap (BIOUG), 2♂, 2–9.vii.2014, M. Brown, Malaise trap (BI- OUG), 1♂, 17.vi–3.vii.2003, M. Brown, Malaise trap (BIOUG), 1♂, 31.vii–18.viii.2014, M. Brown, Malaise trap (BIOUG); Quebec: Gatineau Co., Masham Township, 45.64°N, 76.01°W, 1♂, 27.vii.1995, E. Ikeda (LEMQ), Mont St. Bruno, 45.5524°N, 73.3339°W, 1♀, 24.vii–1.viii.2013, V. Levesque, flight interception trap (LEMQ), Ogden, Marlington Bog, 45.04°N, 72.1733°W, 1♀, 4–5.vii.2010, A. Moores, Malaise trap (LEMQ), Old Chelsea, King Mt., 45.49°N, 75.86°W, 1♂, 13.viii.1969, B.V. Peterson (CNC), St-Daniel, Parc National de Frontenac, 45.9683°N, 71.1517°W, 1♂, 12–19.viii.2013, A. Moores, pan trap (LEMQ). UNITED STATES: Florida: Miami, 25.76°N, 80.19°W, 1♂, 20.ii.1912, F. Knal (USNM); Michigan: Hunt Cr. Exp. Sta. nr. Lewiston, 44.88°N, 84.31°W, 1♂, 20.vii.1942, C.W. Sabrosky (USNM); New Mexico: Catron Co., 8 mi. SE. Luna, 33.82°N, 108.95°W, 2286m, 4♂, 9–14.vii.1987, S. Peck, J. Peck (DEBU); Vermont: East Franklin, Lake Carmi State Park, 44.9533°N, 72.8817°W, 1♂, 11–18.vii.2006, A. Moores, pan trap (LEMQ), 1♂, 11–17.vii.2013, A. Moores, Malaise trap (LEMQ).
Other material examined. CANADA: British Columbia: 10 km W Kamloops, New Afton Mine, 50.6719°N, 120.533°W, 1♂, 24–30.vii.2013, C. Simon, Malaise trap (BIOUG), 1♂, 24–28.viii.1987, C. Simon, Malaise trap (BIOUG), Mount Revelstoke National Park, Off trail behind old staff housing, 51.0181°N, 118.205°W, 608m, 1♂, 4–11.vii.2006, S. Devita, Malaise trap (BIOUG); Nova Scotia: Halifax, Point Pleasant Park, 44.623°N, 63.5686°W, 30m, 3♂, 1♀, 6–13.vii.2013, T. Zemlak, Malaise trap (BIOUG), 1♀, 3–10.viii.2013, T. Zemlak, Malaise trap (BIOUG), 1♀, 28.vi–12.vii.1986, T. Zemlak, Malaise trap (BIOUG), Kejimkujik, Hemocks and Hardwoods, 44.4425°N, 65.2535°W, 97m, 1♂, 31.vii.2009, BIObus 2009 (BIOUG); Ontario: 4452 Rowsome Rd., Elizabethtown, 44.6213°N, 76.273°W, 120m, 1♀, 19.vi.2010, J. Sones (BIOUG), Bruce Co., Bruce Peninsula National Park, Lake Scugog, 45.1167°N, 81.5333°W, 1♂, 1–17.viii.2002, S.A. Marshall, Malaise trap (DEBU), Puslinch, Property of Bob Hanner, 43.4464°N, 80.2512°W, 335m, 2♀, 03.viii.2008, T. Terzin (BIOUG), 1♂, 21.viii.2008, T. Terzin (BIOUG), Thousand Islands National Park, 44.4534°N, 75.865°W, 6♂, 5♀, 16–23.vii.2014, M. Brown, Malaise trap (BIOUG), 1♂, 2♀, 30.vii–8.viii.2014, M. Brown, Malaise trap (BIOUG), 1♂, 1♀, 2–9.vii.2014, M. Brown, Malaise trap (BIOUG), 1♂, 17–24.vii.2006, M. Brown, Malaise trap (BIOUG), 1♂, 4–11.vii.2006, M. Brown, Mal- aise trap (BIOUG); Quebec: Johnville Bog and Forest Park, 45.345°N, 71.7417°W, 1♂, 12–19.vii.2006, J. Savage, J. Kuchta, Malaise trap (LEMQ). UNITED STATES: New Hampshire: Coos Co., 1 km E Stark, 44.6°N, 71.4°W, 1♂, 8.viii.2000, J. Savage, sweep (LEMQ).
Etymology. The species name come from the Latin rectus, meaning straight and lobos (from Greek) meaning lobe, which refers to the fairly straight/parallel side of the surstylus.
Remarks. Females of P. anguliloba, P.lustrum, P. nitens, P. rectiloba, P. silvestris, P. wheeleri can only be reliably identified through sequencing.
description: Published as part of Levesque-Beaudin, Valerie & Mlynarek, Julia J., 2020, Revision of Nearctic Paramyia Williston (Diptera: Milichiidae), pp. 1-56 in Zootaxa 4732 (1) on pages 40-43, DOI: 10.11646/zootaxa.4732.1.1, http://zenodo.org/record/3662029