Zygoneura Meigen, 1830
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publication ID |
https://doi.org/ 10.11646/zootaxa.5496.3.5 |
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publication LSID |
lsid:zoobank.org:pub:58D78B70-604A-42F5-86D4-4395CDB17A41 |
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DOI |
https://doi.org/10.5281/zenodo.13620974 |
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persistent identifier |
https://treatment.plazi.org/id/766187C5-6722-FFF2-FF76-FCAFF696F81B |
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treatment provided by |
Plazi |
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scientific name |
Zygoneura Meigen |
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Key to species of Zygoneura Meigen View in CoL from China (modified from Zhang et al. 2010)
1. Flagellomere with body much longer than neck, mostly with short subequal setae on flagellomere body ( Fig. 3B View FIGURE 3 ). Gonostylus with five megasetae of almost equal size ( Fig. 3C View FIGURE 3 ) (subgenus Allozygoneura )........ Z. xizangensis Shah & Huang sp. nov.
- Not as above......................................................................................... 2
2. Setae long subequal in length on flagellomeres ( Figs 14D View FIGURE 14 , 15B View FIGURE 15 , 16B View FIGURE 16 ). Ventral medial margin of gonocoxa with two groups of weak setae ( Figs 14C View FIGURE 14 , 15D View FIGURE 15 , 16D View FIGURE 16 ). Gonostylus with 2–3 megasetae (subgenus Zygoneura )............................ 3
- Setae mostly short on flagellomeres, except for a longer row near the flagellomere neck ( Figs 5C View FIGURE 5 , 6C View FIGURE 6 , 7C View FIGURE 7 ). Ventral medial margin of gonocoxa with two distinct groups of setae ( Zhang et al. 2010: 42, Fig. 1E View FIGURE 1 ). Gonostylus with two megasetae (subgenus Pharetratula )........................................................................................ 5
3. Gonostylus with two megasetae ( Fig. 15D View FIGURE 15 ).................................................. Z. sajanica Mamaev View in CoL
- Gonostylus with three megasetae ( Figs 14C View FIGURE 14 , 16D View FIGURE 16 )........................................................... 4
4. Gonostylus oblong, not attenuated at apex ( Fig. 16D View FIGURE 16 )........................................... Z. sciarina Meigen View in CoL
- Gonostylus oval, attenuated at apex ( Fig. 14C View FIGURE 14 )........................................... Z. occidens Zhang & Wu View in CoL
5. Gonostylus with two megasetae of almost equal length; one on dorsal side at the apical third region and the other on ventral side near the middle ( Fig. 13C View FIGURE 13 )..................................................... Z. yangi Shah & Huang sp. nov.
- Not as above......................................................................................... 6
6. The two megasetae close to each other on gonostylus, both at the subapical or middle part ( Figs 5B View FIGURE 5 , 7B View FIGURE 7 , 10C–D View FIGURE 10 )......... 7
- The two megasetae widely apart on the gonostylus, with the distance at least longer than the length of the megasetae ( Figs 6B View FIGURE 6 , 8C View FIGURE 8 , 11B View FIGURE 11 )........................................................................................... 10
7. The two megasetae of the gonostylus at the subapical part are almost equal in length ( Figs 10C–D View FIGURE 10 ).................... 8
- The two megasetae of the gonostylus at the middle part are of unequal length. ( Figs 5B View FIGURE 5 , 7B View FIGURE 7 ).......................... 9
8. Gonostylus with apex slightly attenuated, the two megasetae are small ( Zhang & Yang 1990: 268, Fig. 1E View FIGURE 1 )................................................................................................... Z. bidens (Mamaev) View in CoL
- Gonostylus with apex not attenuated, the two megasetae are large and tusk-shaped ( Figs 10C–D View FIGURE 10 )............................................................................................. Z. motuoensis Shah & Huang sp. nov.
9. Gonostylus with the two megasetae overlap on each other in ventral view ( Fig. 5B View FIGURE 5 ).............. Z. disparilis Zhang & Wu View in CoL
- Gonostylus with megasetae parallel to each other in ventral view ( Fig. 7B View FIGURE 7 )...................... Z. flavicornis (Mamaev) View in CoL
10. Gonostylus with megasetae on apical third and middle region ( Figs 9B, 9E View FIGURE 9 , 12B View FIGURE 12 ).................................. 11
- Gonostylus with sub-apical and sub-basal megasetae ( Figs 6B View FIGURE 6 , 8C View FIGURE 8 , 11B View FIGURE 11 )........................................ 12
11. Megasetae relatively short, both at the apical third part of gonostylus ( Figs 9B, 9E View FIGURE 9 ).... Z. minuscula Shah & Huang sp. nov.
- Megasetae normal in length, one at apical third and the other at the middle part of gonostylus ( Fig. 12B View FIGURE 12 )................................................................................................. Z. transferata Rudzinski View in CoL
12. Gonostylus slender ( Fig. 8C View FIGURE 8 )............................................................ Z. longa Zhang & Wu View in CoL
- Gonostylus stout ( Figs 6B View FIGURE 6 , 11B View FIGURE 11 )........................................................................ 13
13. Ventral medial margin of the gonocoxa with pair of distinct lobes. Gonostylus with two megasetae near the dorsal side ( Fig. 11B View FIGURE 11 ).................................................................. Z. subdivergens (Mohrig & Mamaev) View in CoL
- Ventral medial margin of gonocoxa without distinct lobes. Gonostylus with two megasetae near the ventral side ( Fig. 6B View FIGURE 6 ).................................................................................... Z. divergens (Mamaev) View in CoL
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.