Revision of Nearctic Paramyia Williston (Diptera: Milichiidae) Author Levesque-Beaudin, Valerie Author Mlynarek, Julia J. text Zootaxa 2020 2020-02-11 4732 1 1 56 journal article 24090 10.11646/zootaxa.4732.1.1 78caac28-67ae-4fdf-9142-595adc991ccb 1175-5326 3662029 C4C108E8-71C8-4CAC-BB2B-908309BC6F3E Key to the North American males of Paramyia 1 Body yellow …............................................................................. P. lutea n. sp. - Body black …....................................................................................... 2 2 Apical antero-dorsal part of fore femur with a strong circle shape patch yellow to light brown ( Fig. 7D ); dorsal side of tibia with middle brown and yellow at both ends (basally and apically), anterior side mostly yellow; junction of femur with tibia usually paler …............................................................................................ 3 - No apical circle on fore femur, if present, very faint and then anterior side of tibia more brown; dorsal side of tibia variable, but typically brown with only some yellow apically; junction of femur with tibia not paler …............................ 4 3 Large rectangular flagellum, 1.5 times longer than wide ( Fig. 7B ); labium brown and labella yellow to light brown ( Fig. 7C ); frons’ width 1.4-1.5 times flagellum width and frons length 1.3-1.4 times width …................ P. pseudonitens n. sp. - Flagellum subquadrate, about same width and length ( Fig. 9B ); labium and labella both uniform brown ( Fig. 9C ); frons’ width 1.9-2.0 times flagellum width and frons length 1.0-1.1 times width …............................... P. lustrum n. sp. 4 All tarsi dark brown, same color as tibia ( Fig. 11A, D ) …....................................... P. nigritarsi n. sp. - All tarsi yellowish to light brown and paler than at least mid and hind tibia ( Fig. 3A , 19A , 23A ) ….................... 5 5 Gena large: eye 4.5-4.8 times higher than gena ( Fig. 13C , 15C ) ….............................................. 6 - Gena small: eye 5.25-11.0 times higher than gena ( Fig. 19C , 21C ) …............................................ 7 6 Flagellum short and oblong: wider than long, just higher than pedicel ( Fig. 13B ); head width 1.75 times palpus ( Fig. 13C ); fore tibia yellowish on anterior and dorsal side; anterior side of surstylus straight ( Fig. 14A, C ) …......... P. brevikeraia n. sp. - Flagellum longer than pedicel, trapezoidal and 1.2 times wider than long ( Fig. 15B ); head width 1.05 times palpus ( Fig. 15C ); fore tibia fully brown; anterior side of surstylus elbowed ( Fig. 16A, C ) …......................... P. anguliloba n. sp. 7 Flagellum length 1.2 times width ( Fig. 17B ); fore tarsi same color than fore tibia (brown), more distinct on dorsal side ( Fig. 17D ); frons about same length and width (length 1.1 times width) …............................... P. silvestris n. sp. - Flagellum either same length than width or wider ( Fig. 3B , 23B ); all tarsi yellowish to light brown and paler than tibia ( Fig. 3A , 23A ); frons longer than wide (at least 1.25 times width) ….................................................... 8 8 Eye at least 8.7 times higher than gena; postgenal area small (head width at least 4 times postgenal area width); bottom of eye wide (eye width at widest point at most 2 times the bottom eye width) ( Fig. 21C ), if unclear, confirm with surstylus …..... 9 - Eye 5-7.7 times higher than gena; postgenal area large (head width at most 3.3 times postgenal area width), bottom of eye narrow (eye width at widest point at least 2.13 times the bottom eye width) ( Fig. 3C , 23C ), if unclear, confirm with surstylus. 10 9 Flagellum subquadrate ( Fig. 19B ); eye pale; surstylus strongly tapering in the first 1/3 and remaining thin until tip ( Fig. 20A, C ); small species ( 1.2mm long, wing at most 1.2mm long) …..................................... P. wheeleri n. sp. - Flagellum trapezoidal ( Fig. 21B ): side not parallel, angled apically on arista side; eye reddish; surstylus wider apically than basally ( Fig. 22A, C ); large species ( 1.8mm long, wing 1.5mm long) …....................... P. incrassatoloba n. sp. 10 Surstylus paddle shape ( Fig. 4A, C ) ….................................................. P. nitens ( Loew, 1869 ) - Surstylus narrow, rectangular in shape with rounded corner ( Fig. 24A, C ) …........................ P. rectilob a n. sp.