Zygoneura
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publication ID |
https://doi.org/ 10.5281/zenodo.193685 |
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DOI |
https://doi.org/10.5281/zenodo.6198192 |
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persistent identifier |
https://treatment.plazi.org/id/9A0387F2-FFAD-FFB0-13B9-ECB2F4E1FA6A |
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treatment provided by |
Plazi |
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scientific name |
Zygoneura |
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Key to the species of Zygoneura View in CoL (Palaearctic and Oriental regions, male)
( Mamaev 1968, 1976, 1985; Mohrig et al. 1990; Yang & Zhang 1990; Sasakawa 1997; Menzel & Mohrig 2000; Rudzinski 2005)
1. Flagellomere neck 1/2 as long as the body. The base of M1 weakly bowed (subgenus Allozygoneura ) ...................... 2
- Flagellomere neck nearly as long as the body. The base of M1 strongly bowed .......................................................... 3
2. Gonostylus with two megasetae ................................................................................................................ Z. petasitidis View in CoL
- Gonostylus with five megasetae ..................................................................................................................... Z. calthae View in CoL
3. Setae long subequal in length on flagellomeres ( Fig. 3 View FIGURE 3 A). Ventral mesial margin of gonocoxa with two groups of weak setae ( Fig. 3 View FIGURE 3 E). Gonostylus with 2–3 megasetae (subgenus Zygoneura View in CoL )............................................................ 4
- Setae mostly short on flagellomeres, except a longer row near the flagellomere neck ( Fig. 1 View FIGURE 1 A, 2A). Ventral mesial margin of gonocoxa with two distinct groups of setae ( Fig. 1 View FIGURE 1 E, 2E) Gonostylus with two megasetae (subgenus Pharetratula )................................................................................................................................................................. 7
4. Gonostylus with two megasetae ................................................................................................................... Z. sajanica View in CoL
- Gonostylus with three megasetae ................................................................................................................................. 5
5. Gonostylus oblong, not attenuated at apex ( Fig. 2 View FIGURE 2 F).................................................................................................... 6
- Gonostylus oval, attenuated at apex ( Fig. 3 View FIGURE 3 F). ............................................................................... Z. occidens View in CoL sp. nov.
6. Gonostylus with two megasetae arising from apical forth and another megasetae at the apical third of the gonostylus ...................................................................................................................................................................... Z. sciarina View in CoL
- Gonostylus with one short megaseta arising from apical forth and two other long megasetae at the apical third, close to each other ................................................................................................................................................... Z. mohrigi View in CoL
7. The two megasetae close to each other on gonostylus, both at the subapical or middle part....................................... 8
- The two megasetae widely apart on the gonostylus, with the distance at least longer than the length of the megasetae .................................................................................................................................................................................... 10
8. The two megasetae of the gonostylus at the subapical part are subequal in length...................................................... 9
- The two megasetae of the gonostylus at the middle part are of unequal in length ( Fig. 1 View FIGURE 1 F) ......... Z. disparilis View in CoL sp. nov.
9. Gonostylus with megasetae on long dorsal lobe, about two times as long as the megasetae .................... Z. flavicornis View in CoL
- Gonostylus with megasetae on short dorsal lobe, nearly as long as the megasetae ....................................................... ......................................................................................................................................................................... Z. bidens View in CoL
10. Gonostylus stout, with two megasetae subequal length ............................................................................................. 11
- Gonostylus slender, with two megasetae of unequal length ( Fig. 2 View FIGURE 2 F)................................................ Z. longa View in CoL sp. nov.
11. Gonostylus with megasetae at the apical third and middle parts .............................................................. Z. transferata View in CoL
- Gonostylus with megasetae at apical third and basal parts......................................................................................... 12
12. Ventral mesial margin of the gonocoxa with pair of distinct lobes. Gonostylus with two megasetae near the dorsal side ........................................................................................................................................................ Z. subdivergens View in CoL
- Ventral mesial margin of gonocoxa without distinct lobes. Gonostylus with two megasetae near the ventral side ...... .................................................................................................................................................................... Z. divergens View in CoL
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