Hurleyella Runyon & Robinson, 2010

Runyon, Justin B., 2019, Two new species of Hurleyella Runyon & Robinson (Diptera: Dolichopodidae), with the first record from the Neotropics, Zootaxa 4568 (3), pp. 548-560 : 550-551

Key to species of Hurleyella Runyon & Robinson (males)

1 Body length approximately 1 mm; wing with vein R 2+3 unusually short and veins R 4+5 and M 1 converging to nearly parallel apically (as in Figs 3, 4 ); palpus and fore tarsus unmodified; wing without median fuscous band; hypopygium without distinct projections from one side; Hurleyella ...................................................................... 2

- Without above combination of characters.................................................. other Dolichopodidae

2 Coxa I mostly yellow; face and frons covered with dense silver pruinosity ( Fig. 6 ); wing with vein M 1 arching greatly anteriorly on apical half ( Fig. 4 ); halter bright yellow ( Fig. 2 ); hypandrium nearly symmetrical, hood-like ( Figs 9, 10 ); alkali habitats ( Figs 15–20 ) (Idaho, Montana, Wyoming).................................................... H. salina sp. nov.

- Coxa I brown to black; face and frons covered with brownish pruinosity (as in Fig. 5 ); wing with M 1 slightly arching anteriorly only near apex ( Fig. 3 ; Runyon & Robinson 2010, fig. 3); halter brown; hypandrium asymmetrical (as in Figs 7, 8 ), not hoodlike; habitat not noticeably alkaline....................................................................... 3

3 Surstylus apically with large membranous flange ( Runyon & Robinson 2010, fig. 5) (Nearctic)........................ 4

- Surstylus with very small, inconspicuous membranous flange ( Figs 7, 8 , fsur) ( Belize).............. H. belizensis sp. nov.

4 First flagellomere of antenna distinctly wider than narrowest part of face; males with flange of surstylus relatively narrow, tapered ( Runyon & Robinson 2010, figs 5A–B) (Virginia)..................... H. cumberlandensis Runyon & Robinson

- Width of first flagellomere of antenna subequal to narrowest part of face; males with flange of surstylus spatulate ( Runyon & Robinson 2010, fig. 5C) (Texas)................................................. H. brooksi Runyon & Robinson

Figures

FIGURES 3–4. Photographs of male wings. 3. Hurleyella belizensis sp. nov.; 4. Hurleyella salina sp. nov. Scale bars = 0.5 mm.

FIGURES 5–6. Photographs of male heads, anterior view. 5. Hurleyella belizensis sp. nov.; 6. Hurleyella salina sp. nov. Scale bars = 0.25 mm.

FIGURES 1–2. Habitus photographs of male holotypes. 1. Hurleyella belizensis sp. nov.; 2. Hurleyella salina sp. nov. Scale bars = 1.0 mm.

FIGURES 9–10. Hurleyella salina sp. nov., male terminalia. 9. ventral view; 10. left lateral view. Color codes of structures: light brown—epandrium; red—hypandrium; green—phallus + sperm pump + ejaculatory apodeme; blue—surstylus; orangebacilliform sclerite; purple—subepandrial sclerite; dark gray—abdominal sternite 8 and tergite 7. Abbreviations: epandepandrium; epd lobe—epandrial lobe; fsur—lateroapical flange of surstylus; hf—hypopygial foramen; hypd—hypandrium; hyprct—hypoproct; left v epand lb—left ventral lobe of epandrium; right v epand lb—right ventral lobe of epandrium; sbepand scl—subepandrial sclerite; S—abdominal sternite; T—abdominal tergite. Scale bar = 0.1 mm.

FIGURES 15–20. Collection localities and habitats of Hurleyella salina sp. nov. 15, 16. Type locality of H. salina sp. nov. at Deadman’s Basin, Montana, USA (46°20.53′N 109°22.94′W); 16. Specimens of H. salina sp. nov. were found at Deadman’s Basin in areas with lots of salt, mud cracks, and a little moisture; 17. Specimens were collected at Piedmont Pond, Montana, USA (45°50.634′N 112°06.848′W) on mostly dry soil with scattered grasses and a little crusted salt; 18. At Gyp Springs in south central Montana, USA (45°00.36′N 108°25.80′W), specimens were found on bare soil along lower wall of small canyon where water evaporates and salt forms (left center); 19. At Salt Creek in west central Wyoming, USA (42°28.00′N 110°58.07′W), H. salina sp. nov. was taken from areas near the creek with lots of salt (lower left); 20. At Fall Creek in eastern Idaho, USA (43°25.48′N 111°24.86′W), specimens were found on dry part of a travertine mound formed by cold mineral springs with evidence of some salt and other minerals.

FIGURES 7–8. Hurleyella belizensis sp. nov., male terminalia. 7. ventral view; 8. left lateral view. Abbreviations: epandepandrium; epd lobe—epandrial lobe; fsur—lateroapical flange of surstylus; hyprct—hypoproct; left hypd lobe—left lobe of hypandrium; right hypd lobe—right lobe of hypandrium; sbepand scl—subepandrial sclerite; S—abdominal sternite; Tabdominal tergite. Scale bar = 0.1 mm.