Paragus, LATREILLE, 1804
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publication ID |
https://doi.org/ 10.1111/j.1096-3642.2007.00353.x |
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persistent identifier |
https://treatment.plazi.org/id/03E787B2-F83C-FFA4-FCF1-FBFFFD1EF9FD |
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treatment provided by |
Felipe |
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scientific name |
Paragus |
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SUBGENUS PARAGUS LATREILLE, 1804 View in CoL View at ENA STAT. REV.
Type-species: Syrphus bicolor Fabricius, 1794 : Entomologia systematica emendata et aucta, 4: 297.
Re-description (based on Vockeroth, 1986): Male holoptic. Face of male yellow with black lower margin or with dark median stripe. Face of female usually with distinct, median black stripe. Male genitalia ( Figs 49– 54 View Figures 49–54 ): surstylus tapering from mid-length or before to slender apex; hypandrium with deep lateral emargination usually which one or more marginal spinae; lingula usually well developed ( Figs 49, 51, 52 View Figures 49–54 ), absent in quadrifasciatus -group ( Fig. 50 View Figures 49–54 ) (unpublished data); aedeagal apodeme very large, more than half as long as mid-ventral length of hypandrium, usually with well-developed lateral arms ( Figs 76, 77 View Figures 72–83 ); postgonite slender, curved and directed upward, with short pile on lateral surface and usually with denticulate dorsal margin ( Fig. 109 View Figures 100–112 ); lateral lobe of aedeagus large, partially hidden by postgonite in lateral view; ejaculatory apodeme of medium size ( Fig. 106 View Figures 100–112 ); aedeagus large and asymmetric ( Figs 85, 87 View Figures 84–99 ).
Diagnostic features: Eyes with vertical median band of shorter pile ( Fig. 9 View Figures 5–14 ). Face with distinct facial tubercle (as in Fig. 6 View Figures 5–14 ). Scutum with ( Fig. 16 View Figures 15–22 ) or without (as in much narrower in the female). Scutum with yellow and golden pile. Male holoptic. Face of male yellow with black lower margin. Face of female with narrow, median black stripe. Male genitalia ( Figs 45–48 View Figures 43–48 ): surstylus broad strongly tapering and very narrow on apical quarter ( Fig. 47 View Figures 43–48 ); hypandrium short, without lateral emarginations and lingula ( Figs 45, 46 View Figures 43–48 ); aedeagal apodeme long and strongly developed ( Figs 74, 75 View Figures 72–83 ); postgonite developed in 3 axis, strongly curved ( Figs 45 View Figures 43–48 , 108 View Figures 100–112 ); lateral lobe of aedeagus of medium size with strong and sharp apical prolongation ( Fig. 70 View Figures 66–71 ); ejaculatory apodeme of medium size ( Fig. 104 View Figures 100–112 ); aedeagus with well-developed basal part ( Figs 88, 89 View Figures 84–99 ).
Fig. 17 View Figures 15–22 ) dusted submedian stripes. Scutellum without conspicuous teeth on posterior margin, rhomboidal ( Fig. 19 View Figures 15–22 ). Spurious vein ending before the meeting point of vein M with discal cross-vein ( Fig. 21 View Figures 15–22 ). Abdomen short and elliptical ( Figs 25, 31 View Figures 23–34 ). Tergites 1–2 completely fused; tergites 3–5 fused laterally ( Figs 25, 31 View Figures 23–34 ). Male genitalia: postgonite curved posteriorly ( Figs 49–52 View Figures 49–54 , 109 View Figures 100–112 ); ejaculatory apodeme with four apical ridges ( Fig. 106 View Figures 100–112 ); minis large, lateral arms of minis short ( Fig. 53 View Figures 49–54 ); epandrium in narrower part twice length of cercus ( Fig. 54 View Figures 49–54 ); lateral lobe of aedeagus fused with aedeagal apodeme ( Fig. 71 View Figures 66–71 ); aedeagus in lateral view strongly asymmetric, ‘keel-like’, with welldeveloped basal part ( Figs 84–87 View Figures 84–99 ).
Distribution: Mainly Holarctic but also Oriental.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.