Paramyia anguliloba, Levesque-Beaudin & Mlynarek, 2020

Levesque-Beaudin, Valerie & Mlynarek, Julia J., 2020, Revision of Nearctic Paramyia Williston (Diptera: Milichiidae), Zootaxa 4732 (1), pp. 1-56 : 29-32

Paramyia anguliloba , new species

( Fig. 15–16 ; 30 )

Description. ( Fig. 15 ) Total length ♂ 1.4–1.7 mm, ♀ 1.6–1.8 mm. Overall colour brown to dark brown, frontal triangle brown to dark brown, shiny, reaching lunule; frons 1.14–1.25 times longer than wide and 1.6–1.74 times wider than flagellum; width at widest point 2.3–3.0 times the bottom eye width; gena brown with prunescence, 0.21–0.22 times eye height; postgena dark brown, with light prunescence and 0.25 width of head; scape and pedicel dark brown, first flagellomere trapezoidal, 1.2 times wider than long, dark brown with pale pubescence, arista dark brown and 1.6–1.7 times width of first flagellomere; mild facial carina, visible laterally on the upper part only; palpus dark brown with 4 enlarge setae apically and 1 ventral seta pre-apical, labium dark brown 0.43–0.45 mm and labella dark brown 0.49–0.53 mm long.

Scutum shiny dark brown; scutellum dark brown, microsetose; all femur and tibia dark brown; all tarsi brown to light and paler than tibia; hind basitarsus shorter than length of tarsi 2–4 combined; haltere uniformly dark brown; wing 1.42–1.50 mm long; abdomen shiny dark brown.

Male postabdomen ( Fig. 16 ). Epandrium in lateral view 1.1 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, paddle shape with a strong elbow shape on the anterior edge and with a large circular structure situated basally with many short markings within, setae medium length, covering anterior side and distal half of surstylus; cerci medium size and pointed apically, 0.74 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: KP049708 and BOLD BIN: BOLD: ACI 8776 (average p-distance within BIN: 0.23%).

Distribution ( Fig. 30 ). East Coast: Canada: Ontario; United States: Florida, Maryland, Virginia

Type material. Holotype ♂. CANADA: Ontario: L. Cognashene Muskoka Dist. , 28.vii.1981, J.T. Huber (CNC) [CNC263762].

Paratypes. CANADA: 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), Hamilton, 43.3474°N, 80.1801°W, 261m, 1♂, 10- 11.vii.2017, African Lion Safari Staff, Malaise trap (BIOUG), L. Cognashene Muskoka Dist., 44.96°N, 79.92°W, 12♂, 28.vii.1981, J.T. Huber (CNC), Ottawa, Montford Hospital, 45.4478°N, 75.6408°W, 1♂, 15.vii.2002, J.R. Vockeroth (CNC), Point Pelee National Park, Woodland Trail, 41.9641°N, 82.5287°W, 170m, 1♂, 19.vi.2014, BIObus 2014, sweep (BIOUG), Thousand Islands National Park, Jones Creek by Mallorytown, County Rd. 5, 44.4747°N, 75.8652°W, 117m, 1♀, 13-27.vii.2012, BIOBus 2012 (BIOUG), Toronto, 43.703°N, 79.402°W, 176m, 1♂, 3-10.vii.2017, P. Hebert, Malaise trap (BIOUG), Warsaw, Ferris Provincial Park, 44.2829°N, 77.7963°W, 131m, 2♀, 1-15.viii.2014, CBG Collections Staff, Malaise trap (BIOUG), Windsor, Ojibway Prairie Provincial Park, 42.2628°N, 83.0725°W, 175m, 1♀, 21-30.vi.2006, CBG Collections Staff, Malaise trap (BIOUG); Quebec: Mont St. Bruno, 45.548°N, 73.3101°W, 1♀, 1-8.vii.2008, V. Levesque, trunk trap (LEMQ). UNITED STATES: Florida: Ocean Pond, Olustee, 30.21°N, 82.45°W, 1♂, 29.vi.1953, M.R. Wheeler (AMNH); Maryland: Calvert Co., Scientists Cliffs, 8km S. Prince Frederick, 38.5167°N, 76.5133°W, 2♂, 22.v-16.viii.1983, J.M. Cumming (CNC); Ohio: Washington Co., S of New Metamoras on Hwy 7, Wayne Nat. For., 39.444°N, 81.162°W, 1♀, 14.viii.2007, T.A. Wheeler, sweep (LEMQ); Virginia: Falls Church, 38.88°N, 77.17°W, 1♂, 26.vii.1951, W.W. Wirth (USNM).

Other material examined. CANADA: Ontario: Warsaw, Ferris Provincial Park , 44.2829°N, 77.7963°W, 131m, 1♀, 4-18.vii.2014, CBG Collections Staff, Malaise trap (BIOUG) , Windsor, Ojibway Prairie Provincial Park, 42.2628°N, 83.0725°W, 175m, 1♀, 24.vi-1.vii.2008, CBG Collections Staff, Malaise trap (BIOUG)

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Etymology. The specific name anguliloba is derived from the Latin nouns angulus meaning angle or bend, and lobus meaning lobe or rounded projection, reflecting the strong angle/elbow on the anterior 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.

Figures

FIGURE 15. Paramyia anguliloba male (A) habitus, (B) head frontal, (C) head lateral; female (D) habitus, (E) head frontal, (F) head lateral. Scale bar: habitus = 1 mm, others = 0.2 mm.

FIGURE 16. Paramyia anguliloba male genitalia (A) lateral, (B) posterior, (C) surstylus, (D) basal surstylus structure. Scale bar = 0.1 mm.

FIGURE 30. Distribution map of Paramyia anguliloba and Paramyia rectiloba. (created by Simplemappr)