Blastobasis, Zeller, 1855
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publication ID |
https://doi.org/ 10.11646/zootaxa.4679.1.2 |
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publication LSID |
lsid:zoobank.org:pub:09928042-5B9B-4EF6-86C1-9E72482F9A3F |
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persistent identifier |
https://treatment.plazi.org/id/03848510-FF95-9E15-FF7F-C2EDFA46F845 |
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treatment provided by |
Plazi |
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scientific name |
Blastobasis |
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Key to Blastobasis View in CoL species from Mainland China based on genitalia
1. Male............................................................................................... 2
- Female............................................................................................ 11
2. Dorsal part of valva with costal process bearing a row of elongate spine-like setae................................. 3
- Dorsal part of valva with costal process lacking elongate spine-like setae......................................... 5
3. Gnathos without denticles medially on posterior margin ( Fig. 14 View FIGURES 14−17 )................................... B. sprotundalis View in CoL
- Gnathos with two denticles medially on posterior margin..................................................... 4
4. Proximal flange bearing long setae along ventral margin, membrane above proximal flange with a row of elongate spine-like setae ( Fig. 15 View FIGURES 14−17 )................................................................................. B. parki View in CoL
- Proximal flange lacking long setae along ventral margin, membrane above proximal flange with a cluster of elongate spine-like setae ( Fig. 16 View FIGURES 14−17 ).............................................................................. B. drymosa View in CoL
5. Phallus hooked apically ( Fig. 23 View FIGURES 21−23 )......................................................... B. hamata View in CoL , sp. nov.
- Phallus not hooked apically............................................................................. 6
6. Membrane above proximal flange with dense spine-like setae.................................................. 7
- Membrane above proximal flange without spine-like setae.................................................... 8
7. Anellus with one to two pairs of long spine-like setae apically ( Fig. 21 View FIGURES 21−23 )......................... B. aciformis View in CoL , sp. nov.
- Anellus without setae apically ( Fig. 22 View FIGURES 21−23 )................................................... B. edentula View in CoL , sp. nov.
8. Proximal flange with spine-like setae on outer margin........................................................ 9
- Proximal flange without spine-like setae on outer margin.................................................... 10
9. Proximal flange bearing an extremely long seta and a row of short spine-like setae on outer margin ( Fig. 17 View FIGURES 14−17 )................................................................................................ B. spinisetosa View in CoL , sp. nov.
- Proximal flange bearing a row of almost equally elongate spine-like setae on outer margin ( Fig. 18 View FIGURES 18−20 )............ B. inouei View in CoL
10. Membrane above proximal flange with dense setae on ventral 1/3 ( Fig. 20 View FIGURES 18−20 )....................... B. divulgata View in CoL , sp. nov.
- Membrane above proximal flange without setae ( Fig. 19 View FIGURES 18−20 )..................................... B. adamskii View in CoL , sp. nov.
11. Eighth sternum with a darkly pigmented posterior spot medially ( Fig. 24 View FIGURES 24−26 )............................ B. sprotundalis View in CoL
- Eighth sternum without darkly pigmented posterior spot medially............................................. 12
12. Intersegmental membrane posterior to seventh segment without an area of dense microtrichiae flanking ostium ( Fig. 27 View FIGURES 27−30 )....................................................................................... B. adamskii View in CoL , sp. nov.
- Intersegmental membrane posterior to seventh segment with an area of dense microtrichiae flanking ostium............ 13
13. Antrum distinctly broadened........................................................................... 14
- Antrum inconspicuous................................................................................ 15
14. Antrum weakly sclerotized ( Fig. 29 View FIGURES 27−30 )..................................................... B. aciformis View in CoL , sp. nov.
- Antrum membranous ( Fig. 30 View FIGURES 27−30 ).......................................................... B. edentula View in CoL , sp. nov.
15. Microtrichiate area flanking ostium on intersegmental membrane posterior to seventh segment bulged and forming a process ( Fig. 26 View FIGURES 24−26 ).......................................................................... B. spinisetosa View in CoL , sp. nov.
- Microtrichiate area flanking ostium on intersegmental membrane posterior to seventh segment not bulged............. 16
16. Seventh sternum concave in V-shape on posterior margin ( Fig. 25 View FIGURES 24−26 )..................................... B. drymosa View in CoL
- Seventh sternum concave in arc-shape on posterior margin ( Fig. 28 View FIGURES 27−30 )........................... B. divulgata View in CoL , sp. nov.
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