Paramyia nigritarsi, Levesque-Beaudin & Mlynarek, 2020

Levesque-Beaudin, Valerie & Mlynarek, Julia J., 2020, Revision of Nearctic Paramyia Williston (Diptera: Milichiidae), Zootaxa 4732 (1), pp. 1-56 : 24-27

Paramyia nigritarsi , new species

( Fig. 11–12 ; 26 )

Description. ( Fig. 11 ) Total length ♂ 1.3–1.4 mm, ♀ 1.7–1.8 mm. Overall colour dark brown to black, frontal tri- angle dark brown to black, shiny, reaching lunule; frons 1.05–1.25 times longer than wide and 1.7–1.8 times wider than flagellum; width at widest point 2.0–2.5 times the bottom eye width; gena dark brown with prunescence, 0.18 times eye height; postgena dark brown, with light prunescence and 0.25–0.27 width of head; scape and pedicel dark brown, first flagellomere trapezoidal, 1.1 times wider than long, dark brown with pale pubescence, arista dark brown and 1.63–1.78 times width of first flagellomere; strong facial carina, easily visible laterally; palpus dark brown with 4 enlarge setae apically, 1 longer ventral seta pre-apical and a row of short ventral setae, labium dark brown 0.36–0.39 mm and labella dark brown 0.47–0.51 mm long.

Scutum shiny dark brown to black; scutellum dark brown to black, microsetose; all legs: femur, tibia and tarsi dark brown; hind basitarsus equal length of tarsi 2–4 combined; haltere uniformly dark brown; wing 1.33–1.42 mm long; abdomen shiny dark brown.

Male postabdomen ( Fig. 12 ). Epandrium in lateral view 1.04 times wider than high, in posterior view 2.2 times wider than high (before cerci), small setae densely covering posterior portion of epandrium mixed with a low density of large setae; surstylus 1.5 times as high as epandrium, paddle shape with a large wavy structure situated basally with many short markings within and a large dent on the apical anterior side starting near mid-length, setae medium length, covering anterior side and distal half of surstylus; cerci short and blunt apically, 0.57 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: [pending] and BOLD BIN: N/A ( sequence too short for the BIN algorithm). Distribution ( Fig. 26 ). Southwestern United-States : New Mexico, Arizona Type material. Holotype ♂. UNITED STATES: New Mexico: Catron Co., 8 mi. SE. Luna, 33.82°N, 108.95°W,

2286m, 9–14.vii.1979, S. Peck, J. Peck (DEBU).

Paratypes. UNITED STATES: Arizona: Catalina Mts., Htchk. Hwy. mi. 27, 32.44°N, 110.79°W, 1♀, 12.viii.1958, M.S. Adachi (USNM), Cochise Co. , Rustler Park, Chiricahua Mts. , 31.84°N, 109.29°W, 2560m, 1♀, 21.viii.1964 (AMNH) ; New Mexico: Catron Co., 5 mi. W Luna, San Francisco river, 33.82°N, 108.95°W, 2256m, 1♂, 9–14.vii.1987, S. Peck, J. Peck (DEBU) , Catron Co. , 8 mi. SE. Luna , 33.82°N, 108.95°W, 2286m, 2♂, 9– 14.vii.1979, S. Peck, J. Peck (DEBU) .

Etymology. The species name nigritarsi comes from the Latin nigra , meaning black, combined with tarsi, which refers to the dark tarsi for all legs.

Figures

FIGURE 11. Paramyia nigritarsi male (A) habitus, (B) head frontal, (C) head lateral, (D) fore leg; female (E) habitus, (F) head frontal, (G) head lateral. Scale bar: habitus = 1 mm, others = 0.2 mm.

FIGURE 12. Paramyia nigritarsi male genitalia (A) lateral, (B) posterior, (C) surstylus, (D) basal surstylus structure. Scale bar = 0.1 mm.

FIGURE 26. Distribution map of Paramyia incrassatoloba, Paramyia lutea, Paramyia nigritarsi, Paramyia wheeleri. (created by Simplemappr)