Merodon ruficornis, Meigen, 1822
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publication ID |
https://doi.org/ 10.11646/zootaxa.5182.4.1 |
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publication LSID |
lsid:zoobank.org:pub:AF34665D-23FD-48A0-985E-D6220FAB4D48 |
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DOI |
https://doi.org/10.5281/zenodo.7061523 |
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persistent identifier |
https://treatment.plazi.org/id/9A2187E3-FFE1-FFDD-FF61-FF74FA1FFCB1 |
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treatment provided by |
Plazi |
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scientific name |
Merodon ruficornis |
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APPENDIX 1. Key to species of M. ruficornis View in CoL species group
Males
1. Two wart-like prominences present in the middle of the posterior margin of sternum 4. Metatrochanter with small obtuse process; metafemur with distinct ventral protuberance; apex of metatibia with lamellar outer anteroventral spur and curved inner posteroventral spur ( Fig. A1 A–B View FIGURE 1 ).............................. Merodon papillus Vujić, Radenković et Pérez-Bañon View in CoL
- Sternum 4 without these prominences..................................................................... 2
2. Metafemur with long protuberance ventrally, as long as or longer than the process on metatrochanter ( Fig. A7 View FIGURE 7 )........... 3
- Metafemur without or with shorter protuberance ventrally ( Fig. A6 C View FIGURE 6 : pf)......................................... 6
3. Metafemur strongly thickened and swollen ( Fig. A7 B View FIGURE 7 ). Cercus with characteristic shape; posterior surstyle lobe rectangular ( Fig. A8 C View FIGURE 8 : pl).................................................................. Merodon hoplitis Hurkmans View in CoL
- Metafemur less thickened............................................................................... 4
4. Metafemur with extremely long ventral protuberance (more than one half of its width) ( Fig. A9 A View FIGURE 9 ); metatibia with two apical spurs, one outer anteroventral pointed vertically and another inner posteroventral directed horizontally.................................................................. Merodon ilgazense Vujić, Marcos-Garcìa, Sarýbýyýk et Ricarte View in CoL
- Protuberance on metafemur shorter (less than one half of its width).............................................. 5
5. Protuberance on metafemur distinctly longer than process on metatrochanter; inner posteroventral apical spur on metatibia long and pointed ( Fig. A7 C View FIGURE 7 ). Thorns on anterior surstyle lobe and inner side of posterior surstyle lobe strong ( Fig. A8 A–B View FIGURE 8 : al, pl)..................................................................... Merodon gallicus Vujić et Radenković View in CoL
- Protuberance on metafemur shorter or the same length as process on metatrochanter; inner posteroventral apical spur on metatibia shorter ( Fig. A7 A View FIGURE 7 ). Thorns on anterior surstyle lobe and inner side of posterior surstyle lobe shorter and less distinct ( Fig. A8 D–E View FIGURE 8 )..................................................................... Merodon trebevicensis Strobl View in CoL
6. Metafemur with distinct protuberance ventrally (as on Fig. A3 A–B View FIGURE 3 )............................................. 7
- Metafemur without protuberance ventrally................................................................ 14
7. Metatrochanter with very long calcar (0.7 width of metafemur) ( Fig. 1A, B View FIGURE 1 ); metatibia with two distinct apical prolongations (as in Fig. 1A View FIGURE 1 )........................................................................................ 8
- Metatrochanter with shorter calcar (as in Fig. 1D View FIGURE 1 ); metatibia with one distinct apical prolongation (as in Fig. 1D View FIGURE 1 )......... 9
8. Metatibia with twisted distinct, inner, posteroventral spina ( Fig. 1E View FIGURE 1 : marked with arrow); metafemur with indistinct ventral tubercle ( Fig. 1B View FIGURE 1 : marked with arrow)............................... Merodon acutus Vujić et Radenković View in CoL sp. nov.
- Metatibia with narrow, pointed, inner, posteroventral spina ( Fig. 1A View FIGURE 1 ); metafemur with distinct ventral tubercle ( Fig. 1A View FIGURE 1 : marked with arrow)..................................................................... Merodon armipes Rondani View in CoL
9. Anterior spur at the apex of metatibia directed backwards (as on Fig. A3 A View FIGURE 3 )..................................... 10
- Anterior spur at the apex of metatibia pointed forwards or upwards (as on Fig. A6 E View FIGURE 6 )............................... 11
10. Spur at the apex of metatibia triangular, thorn-like ( Fig. A3 A View FIGURE 3 ). Thorns on anterior surstyle lobe and inner side of posterior surstyle lobe short, almost indistinct ( Fig. A4 A View FIGURE 4 : al, pl).................................. Merodon ruficornis Meigen View in CoL
- Spur at the apex of metatibia rounded ( Fig. A3 B View FIGURE 3 ). Thorns on anterior surstyle lobe and inner side of posterior surstyle lobe distinct ( Fig. A4 C–D View FIGURE 4 )..................................................... Merodon abruzzensis Van der Goot View in CoL
11. Lamella behind the apical spur of metatibia with undulated fold ( Fig. A6 D View FIGURE 6 : lm).................................. 12
- Lamella behind the apical spur of metatibia with straight ventral margin ( Fig. A6 E View FIGURE 6 ). Posterior surstyle lobe rounded; thorn on anterior surstyle lobe indistinct ( Fig. A5 B–C View FIGURE 5 : al, pl).......................... Merodon ponticus Vujić et Radenković View in CoL
12. Tibiae at both ends and basal three tarsomeres pale.......................................... Merodon auripes Sack View in CoL
- Legs predominantly dark. Basal metafemur strongly curved (as on Fig. A12 A View FIGURE 12 )................................... 13
13. Process on metatrochanter shorter and more pointed ( Fig. A12 A–B View FIGURE 12 ). Posterior surstyle lobe rounded ( Fig. A11 C View FIGURE 11 : pl).......................................................................... Merodon ovaloides Vujić et Radenković View in CoL
- Process on metatrochanter longer and broader ( Fig. A13 A–B View FIGURE 13 ). Posterior surstyle lobe hook-like ( Fig. A14 View FIGURE 14 : pl)........................................................................................... Merodon planiceps Loew View in CoL
14. Legs dark.......................................................................................... 15
- At least basal two (three) tarsomeres pale................................................................. 21
15. Spur at the apex of metatibia small, triangular, lamella indistinct; process on metatrochanter small and pointed; ventral margin of metafemur without long and dense pile ( Fig. A6 B View FIGURE 6 ); margin of anterior surstyle lobe with very strong dorsal extension ( Fig. A11 B View FIGURE 11 )................................................................. Merodon nigripodus Vujić et Hayat View in CoL
- Spur at the apex of metatibia larger, lamella present (as on Fig. A10 A View FIGURE 10 ).......................................... 16
16. Metatibia with distinct inner posteroventral spina ( Fig. 15E View FIGURE 15 ; marked with black arrow).............................................................................................. Merodon trispinus Vujić et Radenković View in CoL sp. nov.
- Metatibia with much smaller or indistinct inner posteroventral spina (as in Fig. 15F View FIGURE 15 )............................... 17
17. Posterior surstyle lobe rounded and with indistinct inner thorn ( Fig. A11 C View FIGURE 11 : pl). Process on metatrochanter small and pointed; anteroventral spur at the apex of metatibia with innerly curved apical extension ( Fig. A12 A–C View FIGURE 12 ); metafemur can be with trace of ventral protuberance.................................................. Merodon ovaloides Vujić et Radenković View in CoL
- Posterior surstyle lobe with more or less flat dorsal margin................................................... 18
18. Anteroventral apical spur of metatibia extended more than anterodorsal end of metatibia ( Fig. A10 A View FIGURE 10 ); posterior side of apex of metatibia without small spur........................................................................... 19
- Anteroventral apical spur of metatibia not extended more than anterodorsal end of metatibia ( Fig. A15 A–D View FIGURE 15 ), posterior side of apex of metatibia usually with small spur (as on Fig. A15 D–E View FIGURE 15 )................................................ 20
19. Process on metatrochanter wide and strong; pile on ventral side of metafemur two times shorter than its width ( Fig. A10 A–B View FIGURE 10 ); cercus oval ( Fig. A11 A View FIGURE 11 : c)....................................................... Merodon loewi van der Goot View in CoL
- Process on metatrochanter narrower; pile on ventral side of metafemur long and dense, at least two thirds of its width ( Fig. A13 A View FIGURE 13 ); cercus rectangular ( Fig. A14 View FIGURE 14 )..................................................... Merodon planiceps Loew View in CoL
20. Long pile on trochanters predominantly black; metafemur anteriorly covered with mostly black pile; terga 3 and 4 with pollinose fasciae clearly visible from lateral view; apical spur at posterior side of metatibia bigger ( Fig. A15 D–E View FIGURE 15 )................................................................................... Merodon portschinskyi Stackelberg View in CoL
- Long pile on trochanters predominantely pale; metafemur anteriorly covered with mostly pale pile; terga 3 and 4 without pollinose fasciae (some specimens have traces of pollen on terga, but there are invisible from lateral view); apical spur at posterior side of metatibia small, in some specimens almost indistinct......................... Merodon turcicus Vujić et Hayat View in CoL
21. Metatibia with anteroventral apical plate-like lamella ( Fig. 8A, B View FIGURE 8 : marked with white arrow), not extended more than the anterodorsal end of metatibia ( Fig. 8A, B View FIGURE 8 : marked with gray arrow).............................................. 22
- Metatibia with anteroventral apical prolongation ( Fig. 8C View FIGURE 8 : marked with white arrow) extended more than the anterodorsal end of metatibia (as in Fig. 8C View FIGURE 8 : marked with gray arrow)........................................................ 23
22. Metatrochanter with very small calcar ( Fig. 8B View FIGURE 8 : marked with black arrow)....... Merodon lamellatus Vujić et Radenković
- Metatrochanter with medium sized calcar ( Fig. 8A View FIGURE 8 : marked with black arrow)................................................................................................. Merodon fulvitarsis Vujić et Radenković View in CoL sp. nov.
23. Lamella behind apical spur of metatibiae with straight ventral margin ( Fig. A6 A View FIGURE 6 ); posterior surstyle lobe rectangular ( Fig. A5 A View FIGURE 5 )............................................................................. Merodon alexandri Popov View in CoL
- Lamella behind apical spur of metatibiae with rounded ventral margin ( Fig. A10 A View FIGURE 10 ); posterior surstyle lobe hook-like ( Fig. A11 A View FIGURE 11 )........................................................................... Merodon loewi van der Goot View in CoL
Females
1. Tergum 4 with transversal depression ( Fig. A2 B–C View FIGURE 2 : td)....................................................... 2
- Tergum 4 without transversal depression ( Fig. A2 A View FIGURE 2 ), tarsi dark, at least dorsally............................................................................................. Merodon papillus Vujić, Radenković et Pérez-Bañon View in CoL
2. Tergum without pollinose fasciae..................................................... Merodon alexandri Popov View in CoL
- Tergum 2–4 with clear pollinose fasciae................................................................... 3
3. Sternum 4 with strong thorn-like protuberance ( Fig. A2 C View FIGURE 2 : pp)............................ Merodon armipes Rondani View in CoL
- Sternum 4 without protuberance......................................................................... 4
4. Metafemur with protuberance ventrally.................................................................... 5
- Metafemur without protuberance........................................................................ 13
5. Pile on metafemur short, adpressed, especially in apical third ( Fig. A9 C View FIGURE 9 ). Mediotergite entirely dusted. Distribution: Adriatic mountains..................................................................... Merodon hoplitis Hurkmans View in CoL
- Pile on metafemur longer ( Fig. A9 B View FIGURE 9 ). Mediotergite postero-medially shiny. Some other range........................ 6
6. Basal three tarsomeres of all legs pale..................................................................... 7
- Tarsi darkened at least dorsally......................................................................... 12
7. Apex of metatibia rounded ( Fig. A3 C View FIGURE 3 ).................................................................... 8
- Apex of metatibia angled ( Fig. A12 D View FIGURE 12 )................................................................... 10
8. Tergum 5 with a pair of deep lateral depression ( Fig. 15 View FIGURE 15 )... Merodon ilgazense Vujić, Marcos-Garcìa, Sarýbýyýk et Ricarte View in CoL
- Tergum 5 with a pair of weaker depression................................................................. 9
9. Distribution: Italy, Abruzzi Mountains.......................................... Merodon abruzzensis van der Goot View in CoL
- Distribution: rest of Europe....................................................... Merodon ruficornis Meigen View in CoL
10. Metatarsus of metaleg without or with only few black bristles................................................. 11
- Metatarsus of metaleg with black bristles. Distribution: western of Alps to Caucasus area..... Merodon trebevicensis Strobl View in CoL
11. Distribution: Turkey and Azerbaijan....................................... Merodon ponticus Vujić et Radenković View in CoL
- Distribution: France..................................................... Merodon gallicus Vujić et Radenković View in CoL
12. Distribution: western of Alps to Caucasus area. Metatarsus of metaleg with black bristles..... Merodon trebevicensis Strobl View in CoL
- Distribution: France. Metatarsus of metaleg without or with only few black bristles... Merodon gallicus Vujić & Radenković View in CoL
13. Three basal tarsomeres pale, at least of metaleg............................................................ 14
- Tarsi darkened at least dorsally......................................................................... 21
14. Apex of metatibia rounded (as on Fig. A3 C View FIGURE 3 ).............................................................. 15
- Apex of metatibiae angled (as on Fig. A12 D View FIGURE 12 ).............................................................. 17
15. Distribution: Europe.................................................................................. 16
- Distribution: Turkey................................................... Merodon lamellatus Vujić et Radenković
16. Distribution: Italy, Abruzzi Mountains......................................... Merodon abruzzensis Van der Goot View in CoL
- Distribution: rest of Europe....................................................... Merodon ruficornis Meigen View in CoL
17. Pile on ventral surface of metafemur long (the longest ones at least two thirds width of metafemur)................... 18
- The longest pile on ventral surface of metafemur shorter, usually one half width of metafemur ( Fig. A10 C View FIGURE 10 )............ 19
18. Distribution: Turkey and Azerbaijan....................................... Merodon ponticus Vujić et Radenković View in CoL
- Distribution: Europe.................................................................. Merodon auripes Sack View in CoL
19. Metatrochanter angled (as in Fig. 7B View FIGURE 7 ).................................................................... 20
- Metatrochanter rounded ( Fig. 7C View FIGURE 7 )........................................ Merodon lamellatus Vujić et Radenković (females of M. alexandri View in CoL with faciate maculae on terga 2–4 also keyed here; distinction between females of these two species is based on distribution)
20. Metatibia curved in apical third ( Fig. 7B View FIGURE 7 ).......................... Merodon fulvitarsis Vujić et Radenković View in CoL sp. nov.
- Metatibia not curved in apical third ( Fig. 7F View FIGURE 7 )......................................... Merodon loewi van der Goot View in CoL
21. Apex of metatibia rounded (as on Fig. A3 C View FIGURE 3 ).............................................................. 22
- Apex of metatibia angled (as on Fig. A12 D View FIGURE 12 )............................................................... 23
22. Distribution: Italy, Abruzzi Mountains.......................................... Merodon abruzzensis van der Goot View in CoL
- Distribution: rest of Europe....................................................... Merodon ruficornis Meigen View in CoL
23. The longest pile on ventral surface of metafemur short, usually one half of width of metafemur ( Figs. 7D, 7F View FIGURE 7 )........... 24
- Pile on ventral surface of metafemur long (the longest ones at least ⅔ of width of metafemur) ( Fig. 7E View FIGURE 7 )................ 25
24. Tergum 4 with distinct transverse depression ( Fig. 3B View FIGURE 3 )................. Merodon trispinus Vujić et Radenković View in CoL sp. nov.
- Tergum 4 with less distinct transverse depression (as in Fig. 3A View FIGURE 3 : marked with arrow).......... Merodon loewi van der Goot View in CoL
25. Apex of metatibia with distinct lamella ( Fig. A12 E–F View FIGURE 12 : lm).......................... Merodon turcicus Vujić et Hayat View in CoL
- Apex of metatibia with smaller lamella ( Fig. A13 C View FIGURE 13 )........................................................ 26
26. Tergum 5 and sternum 5 predominately pale pilose (a few black pile may be present) ( Fig. 11A View FIGURE 11 )...................... 27
- Tergum 5 and sternum 5 with numerous black pile medially ( Fig. 11B View FIGURE 11 ).......................................... 28
27. Apical third of metafemur dorsally with shorter and adpressed pilosity ( Fig. 7A View FIGURE 7 ).................................................................................................. Merodon acutus Vujić et Radenković View in CoL sp. nov.
- Apical third of metafemur dorsally with longer and less adpressed pilosity ( Fig. 7E View FIGURE 7 )..................................................................................................... Merodon ovaloides Vujić et Radenković View in CoL
28. Frons with narrow lateral pollinose vittae along eye margins ( Fig. 11C View FIGURE 11 ); distribution: Caucasus, Georgia........................................................................................ Merodon portschinskyi Stackelberg View in CoL
- Frons with broader pollinose vittae along eye margins ( Fig. 11D View FIGURE 11 ); distribution: Italy, Greece (Rhodes) and Turkey........................................................................................ Merodon planiceps Loew 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.