The Tachytrechus alatus species group (= Syntomoneurum Becker) revisited: new species and revised species group limits (Diptera: Dolichopodidae) Author Brooks, Scott E. Author Cumming, Jeffrey M. text Zootaxa 2008 1676 1 27 journal article 10.5281/zenodo.180314 59f2f391-287e-465d-b396-9d11cd0a3378 1175-5326 180314 Tachytrechus analis (Parent) (Figs. 2, 13) Syntomoneurum anale Parent 1954 : 226 . Syntormoneurum anale , misspelling by Parent 1954 : 226 . Tachytrechus analis (Parent) : Brooks (2005) : 121 . Diagnosis. Male. Body length 5.7 mm , wing length 5.8 mm ; face mainly metallic green with brownish background coloration; clypeus rounded below; 2 notopleural bristles; fore tarsus with weak silvery reflections anteriorly, basitarsus and tarsomere 2 with curved setae ventrally; hind femur mainly yellow with 1 anterior preapical bristle; wing (Fig. 2A) lacking costal swelling; R2+3 ending at costa well beyond midpoint of wing; bends in M distinct, obtuse; R4+5 and M subparallel distally; abdominal tergite 5 with large posterior membranous region, extended laterally as broad band to ventral margin of sclerite; hypopygium (Figs. 2B, 2C): right and left basiventral epandrial lobe very weakly developed; apicoventral epandrial lobe extremely well-developed, long, digitiform, projected ventrally, with medial seta positioned near base, lateral seta near middle; accessory epandrial process absent; apicoventral arm of postgonite with medial process present, apex with hook-like process; cercus subrectangular in dorsal view, longer than wide, apical and lateral margin dark; hypandrium wide, asymmetrical in ventral view, right margin with dentiform projection; ventral surstylar lobe with series of parallel diagonal ridges on ventral surface; phallus with weak projection near middle and elongate, digitiform projection subapically. FIGURE 1 . Tachytrechus alatus (Becker) : (A) male wing; (B) female wing; (C) hypandrium (ventral view); (D) hypopygium (left lateral view). Adapted from Brooks & Wheeler (2002) . Abbreviations: A1: anal vein; acc proc: accessory epandrial process; apv lobe: apicoventral epandrial lobe; bv lobe: basiventral epandrial lobe; cerc: cercus; CuA1: 1st anterior branch of cubital vein; dm-cu: discal medial-cubital crossvein; epand: epandrium; hypd: hypandrium; M: medial vein; pgt: postgonite; ph: phallus; R1: 1st radial vein; R2+3: 2nd + 3rd radial vein; R4+5: 4th + 5th radial vein; vsur: ventral lobe of surstylus. FIGURE 2. Tachytrechus analis male (Parent): (A) wing; (B) hypandrium (ventral view); (C) hypopygium (left lateral view). Adapted from Brooks & Wheeler (2002) . Abbreviations: A1: anal vein; apv lobe: apicoventral epandrial lobe; bv lobe: basiventral epandrial lobe; cerc: cercus; CuA1: 1st anterior branch of cubital vein; dm-cu: discal medial-cubital crossvein; hypd: hypandrium; M: medial vein; ph: phallus; R1: 1st radial vein; R2+3: 2nd + 3rd radial vein; R4+5: 4th + 5th radial vein; vsur: ventral lobe of surstylus. Female : Unknown. Type material examined. Holotype ɗ, COLOMBIA : Boyaca, Muzo, 900 m , 1936, J. Bequaert ( MNHN ). Distribution. Tachytrechus analis is known only from the type locality in Muzo, Colombia ( Fig. 13 ).