Megalota delphinosema (Walsingham, 2009) Brown, 2009
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publication ID |
https://doi.org/ 10.11646/zootaxa.2279.1.1 |
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DOI |
https://doi.org/10.5281/zenodo.5315422 |
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persistent identifier |
https://treatment.plazi.org/id/038E7928-FFCE-FF90-FF2B-E2B5FA60FA94 |
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treatment provided by |
Felipe |
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scientific name |
Megalota delphinosema |
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Key to the males of the delphinosema View in CoL group based on genitalia
1. Valva with long, transverse, flattened flange 0.6 distance from base to apex ( Fig. 33 View FIGURES 31–33 )..............................9. spinulosa View in CoL
- Valva without flattened flange from valva.................................................................................................................... 2
2. Valva without dense cluster of spiniform setae ( Fig. 34 View FIGURES 34–36 )....................................................................... 10. simpliciana View in CoL
- Valva with at least one dense cluster of spiniform setae............................................................................................... 3
3. Basal process of the valva short and stout, <3 times as long as wide ( Figs. 45 View FIGURES 43–45 , 47 View FIGURES 46–48 ) ................................................... 4
- Basal process of the valva long and slender,> 3 times as long as wide ....................................................................... 5
4. Basal process of the valva ca. 2 times as long as wide, simple, slightly dilated and rounded distally; valva with a single patch of elongate setae in basal 0.25 ( Fig. 45 View FIGURES 43–45 )........................................................................................ 21. beckeri View in CoL
- Basal process of the valva ca. 2.5 times as long as wide, widest in middle; valva with a small cluster of spiniform setae subbasally and a second patch from ventral edge ca. 0.5 distance from base to apex ( Fig. 47 View FIGURES 46–48 )..........22. flintana View in CoL
5. Valva with conspicuous basally directed process or spiny lobe near middle, with associated patch of setae near midventer, with setae of setal patch longer than 0.25 length of valva ( Figs. 38 View FIGURES 37–39 , 44 View FIGURES 43–45 ).......................................................... 6
- Valva without basally directed process or lobe, with setae of setal patch(es) less than 0.25 length of valva............... 7
6. Valva with smooth process near middle representing basal edge of abruptly broadened mesal portion of valva, with a patch of elongate slender setae immediately below the process ( Fig. 38 View FIGURES 37–39 )............................................. 14. ceratovalva View in CoL
- Valva with spiny lobe near middle, with a patch of long flattened, curved setae immediately below lobe ( Fig. 44 View FIGURES 43–45 ) .... ................................................................................................................................................................. 20. chamelana View in CoL
7. Phallus long and slender, ca. 0.7 times length of valva, strongly and evenly curved throughout, with single external thorn at tip; valva with a small triangular flange and associated patch of short spiniform setae near outer edge of basal cavity ( Fig. 43 View FIGURES 43–45 ).................................................................................................................................19. gutierrezi
- Phallus shorter and stouter, <0.6 times length of valva, weakly curved or angled, with variable number of external spines; valva without triangular flange near outer edge of basal cavity ....................................................................... 8
8. Basal process of the valva comparatively stout, length ca. 3 times width, without elbowed bend near middle ( Fig. 32 View FIGURES 31–33 )...................................................................................................................................................................8. ochreoapex View in CoL
- Basal process of the valva relatively sender, length> 4 times width, with elbowed bend on inner surface near middle ....................................................................................................................................................................................... 9
9. Valva with only one patch of setae – a distinct cluster of spiniform setae near middle ( Fig. 42 View FIGURES 40–42 )..............18. crassana View in CoL
- Valva with two patches of setae – a distinct cluster of spiniform setae from venter near middle and a second, more basal, patch (or linear region) of finer, sparser setae .................................................................................................. 10
10. Phallus characteristically angled or bent at ca. 120° at middle; a distinct dorsal thorn at the angle; and vesica with a single large cornutus from a distinct ovoid plate ( Fig. 35 View FIGURES 34–36 ) ................................................................. 11. delphinosema View in CoL
- Phallus bent, curved, or angled, but not ca. 120° at middle; one or more dorsal thorns, but not at the point of angle or bend; and vesica with cornuti variable, but not from a distinct ovoid plate ............................................................... 11
11. Setae of subbasal patch longer than setae of spiniform cluster (distal patch) ( Fig. 40 View FIGURES 40–42 )......................... 16. longisetana View in CoL
- Setae of subbasal patch shorter than setae of spiniform cluster (distal patch)............................................................ 12
12. Valva with discrete patch of short, finer setae located basad of cluster of long spiniform setae ................................ 13
- Valva without discrete patch of short, finer setae basad of cluster of long spiniform setae (i.e., fine setae usually scattered throughout subbasal region) .............................................................................................................................. 14
13. Setae of subbasal patch about the same length as setae of the spiniform cluster ( Fig. 37 View FIGURES 37–39 )............................13. ricana View in CoL
- Setae of subbasal patch much shorter than setae of the spiniform cluster ( Fig. 41 View FIGURES 40–42 ).................................17. deceptana
14. Phallus with 3–4 small cornuti ( Fig. 39 View FIGURES 37–39 )................................................................................................. 15. bicolorana View in CoL
- Phallus with 1–2 larger cornuti ( Fig. 36 View FIGURES 34–36 ) ................................................................................................. 12. jamaicana 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.