Eucelatoria (Townsend, 1912)

Burington, Zelia L., 2022, A taxonomic revision of the Eucelatoria ferox species group (Diptera: Tachinidae), Zootaxa 5143 (1), pp. 1-104 : 15-16

publication ID	https://doi.org/ 10.11646/zootaxa.5143.1.1
publication LSID	lsid:zoobank.org:pub:F71553B2-7D58-4E61-A883-546B2A0124D5
DOI	https://doi.org/10.5281/zenodo.6958372
persistent identifier	https://treatment.plazi.org/id/038687B6-6944-8F42-FF1B-FBFBFA3E839B
treatment provided by	Plazi
scientific name	Eucelatoria
status

Treatment

Key to the species of the Eucelatoria View in CoL View at ENA ferox group

1. Inner and outer thoracic vittae partially or fully fused, such that there are only one or two postsutural thoracic vittae (e.g., Figs 1A–E View FIGURE 1 ) ............................................................................................. 2

- Inner and outer thoracic vittae partially or fully separate, such that there are four postsutural thoracic vittae visible adjacent to suture, or thoracic vittae indistinct (e.g., Figs 1F–I View FIGURE 1 )..................................... ( E. gladiatrix View in CoL subgroup) 11

2. Postsutural thoracic vittae continued from presutural vittae, such that thoracic notum bears two thick parallel longitudinal vittae, with at most only a thin line of tomentum partially separating inner and outer vittae ( Figs 1D–E View FIGURE 1 ). T1+2 ventrally covered with dense tomentum ( Figs 47–49 View FIGURES 46–47 View FIGURES 48–49 )....................................................... ( E. ferox View in CoL subgroup) 3

- Postsutural thoracic vittae merged into a single large vitta covering most of postsutural area ( Figs 1A–C View FIGURE 1 ). T1+2 ventral area usually lacking tomentum ( Figs 66–71 View FIGURES 66–67 View FIGURES 68–69 View FIGURES 70–71 , 86–91 View FIGURES 86–87 View FIGURES 88–89 View FIGURES 90–91 )..................................... ( E. kopis View in CoL sp. nov. subgroup) 5

3. Inner and outer vittae partially separated along mid length by thin line of tomentum along dorsocentral row of setae ( Fig. 1D View FIGURE 1 , 3 View FIGURES 2–5 ) ( Mexico)..................................................................... E. huitepecensis View in CoL sp. nov.

- Inner and outer vittae fused along entire length, without thin intermediate line of tomentum ( Figs 2, 4 View FIGURES 2–5 )................. 4

4. Ocellar setae strong, at least three fourths length of posterior reclinate orbital seta. Occipital tomentum usually at least partially gray. Calypteres cream or tan colored ( Fig. 47 View FIGURES 46–47 ) ( Ecuador, Bolivia).............................. E. ferox (Townsend) View in CoL

- Ocellar setae minute or apparently absent, indistinguishable from surrounding setulae. Head tomentum, including occiput tomentum, entirely yellow. Calypters orange tinted ( Fig. 49 View FIGURES 48–49 ) ( Ecuador).............................. E. inclani View in CoL sp. nov.

5. Palpi yellow to tan. Presutural thoracic vittae usually four ( Fig. 1A View FIGURE 1 , 21 View FIGURES 18–21 , 41 View FIGURES 38–41 ), rarely two. Ocellar setae absent ( Costa Rica)............................................................................... E. gustavogutierrezi View in CoL sp. nov.

- Palpi dark brown to black. Presutural thoracic vittae always two, with at most a small triangle of tomentum partially separating inner and outer vittae near notopleural suture ( Figs 1B–C View FIGURE 1 , 22–26 View FIGURES 22–25 View FIGURES 26–29 , 42–46 View FIGURES 42–45 View FIGURES 46–47 ). Ocellar setae present....................... 6

6. Scutellum entirely devoid of tomentum. Abdominal bands usually covering less than one-fourth length of T3–5 ( Figs 26 View FIGURES 26–29 , 46 View FIGURES 46–47 ) ( Brazil)........................................................................... E. tenebrionis View in CoL sp. nov.

- Scutellum with at the least a patch of tomentum between subapical scutellar setae. Abdominal dorsal bands covering more than one-fourth length of T3–5 ( Figs 22–25 View FIGURES 22–25 , 42–45 View FIGURES 42–45 )............................................................. 7

7. Scutellum with at most a patch of gray tomentum between subapical scutellar setae ( Figs 24 View FIGURES 22–25 , 42, 45 View FIGURES 42–45 ).................. 8

- Scutellum with tomentum covering apical one-third or more of dorsal area ( Figs 22–23, 25 View FIGURES 22–25 , 43–44 View FIGURES 42–45 )................... 9

8. Male cercus in lateral view subparallel at apex ( Fig. 137 View FIGURES 136–155 ); in caudal view with basal lobes narrowly divergent ( Fig. 153 View FIGURES 136–155 ). Surstylus with long apical setae ( Fig. 137 View FIGURES 136–155 ). Abdominal bands in male one-half to one-third length of T3–5 ( Fig. 42 View FIGURES 42–45 ) ( Bolivia)........................................................................................ E. hafelei View in CoL sp. nov.

- Male cercus margins in lateral view dilated at apex ( Fig. 138 View FIGURES 136–155 ); in caudal view with basal lobes broadly divergent ( Fig. 154 View FIGURES 136–155 ). Surstylus without long apical setae ( Fig. 138 View FIGURES 136–155 ). Abdominal bands one-fourth to one-third length of T3–5 ( Figs 24 View FIGURES 22–25 , 45 View FIGURES 42–45 ) ( Costa Rica, Brazil, Ecuador).............................................................. E. ritavargasae View in CoL sp. nov.

9. Parafacial tomentum gray ( Figs 68 View FIGURES 68–69 , 89 View FIGURES 88–89 ) ( Peru, Brazil)....................................... E. makhaira View in CoL sp. nov.

- Parafacial tomentum yellow ( Figs 67 View FIGURES 66–67 , 70 View FIGURES 70–71 , 88 View FIGURES 88–89 )............................................................. 10

10. Piercer extending to base of T3 or beyond, slightly bent anterad near base. Aculeate lobe length greater than 2.5 times height of segment 7 base ( Fig. 107 View FIGURES 94–108 ). Palpus only slightly dilated and flattened at apex in female ( Costa Rica to Bolivia, Brazil)............................................................................................ E. kopis View in CoL sp. nov.

- Piercer usually extending to base of T4, sharply bent anterad near base. Aculeate lobe length less than 2.0 times height of segment 7 base ( Fig. 108 View FIGURES 94–108 ). Palpus strongly dilated and flattened at apex in female ( Ecuador)................ E. sica View in CoL sp. nov.

11. S1, T1+2, and usually T3 ventrally with thin, pale setae; male usually with tan cuticle spots laterally on T1+2–4 ( Figs 53–54 View FIGURES 52–53 View FIGURES 54–55 , 56 View FIGURES 56–57 , 75–76 View FIGURES 74–75 View FIGURES 76–77 , 79 View FIGURES 78–79 )...................................................................................... 12

- Abdominal setae and cuticle entirely black................................................................ 13

12. Parafacial tomentum entirely yellow ( Figs 53–54 View FIGURES 52–53 View FIGURES 54–55 , 75–76 View FIGURES 74–75 View FIGURES 76–77 ). Dorsal thoracic tomentum usually dense yellow, appearing gold ( Fig. 8–9 View FIGURES 6–9 , 30–31 View FIGURES 30–33 ). Upper lobe of cercus subtriangular in caudal view, the inner margin linear ( Fig. 143 View FIGURES 136–155 ) ( Puerto Rico, Jamaica, Mexico to Bolivia).............................................................. E. charapensis (Townsend) View in CoL

- Parafacial tomentum pale gray, only merging to yellow on upper one-fourth ( Figs 56 View FIGURES 56–57 , 79 View FIGURES 78–79 ). Dorsal thoracic tomentum pale yellow to gray ( Figs 11 View FIGURES 10–13 , 34 View FIGURES 34–37 ). Upper lobe of cercus subquadrate in caudal view, the inner margin rounded ( Fig. 145 View FIGURES 136–155 ) ( Brazil)...................................................................................... E. fordlandia View in CoL sp. nov.

13. Ocellar setae minute, indistinct, or absent, usually indistinguishable from adjacent setulae of ocellar triangle ( Figs 57 View FIGURES 56–57 , 65 View FIGURES 64–65 , 80 View FIGURES 80–81 , 85 View FIGURES 84–85 )............................................................................................... 14

- Ocellar setae distinct, usually more than one-third length of posterior reclinate orbital seta (e.g., Figs 51 View FIGURES 50–51 , 55 View FIGURES 54–55 )........... 15

14. Abdominal bands continuous, even, dense. Postsutural inner and outer vittae distinct from each other, at most with area of more diffuse tomentum between them ( Figs 12 View FIGURES 10–13 , 35 View FIGURES 34–37 ) ( Mexico to Peru)............................ E. gladiatrix (Townsend) View in CoL

- Abdominal bands diffuse, with distinct median vitta. Inner and outer vittae merged on postsutural area ( Figs 20 View FIGURES 18–21 , 40 View FIGURES 38–41 ) ( Ecuador, Bolivia)........................................................................... E. yanayacu View in CoL sp. nov.

15. North American..................................................................................... 16

- Central or South American............................................................................ 19

16. Thoracic vittae indistinct amid thin, diffuse gray tomentum on mesonotum ( Figs 1H View FIGURE 1 , 7 View FIGURES 6–9 , 29 View FIGURES 26–29 ). Ocellar setae weak, usually less than one-half length of posterior reclinate orbital seta ( Figs 52 View FIGURES 52–53 , 74 View FIGURES 74–75 ) (Northeastern U.S. and Southern Canada)................................................................................................. E. borealis View in CoL sp. nov.

- Thoracic vittae distinct, dorsal thoracic tomentum usually dense (e.g., Figs 1G–I View FIGURE 1 , 6 View FIGURES 6–9 , 16 View FIGURES 14–17 , 18 View FIGURES 18–21 ). Ocellar setae strong, usually more than one-half length of posterior reclinate orbital seta (e.g., Figs 51 View FIGURES 50–51 , 61 View FIGURES 60–61 , 63 View FIGURES 62–63 )...................................... 17

17. Parafacial tomentum entirely yellow ( Figs 51 View FIGURES 50–51 , 73 View FIGURES 72–73 ) (Eastern U.S.).............................. E. auriceps (Aldrich) View in CoL

- Parafacial tomentum entirely gray ( Figs 61 View FIGURES 60–61 , 63 View FIGURES 62–63 , 81 View FIGURES 80–81 , 83 View FIGURES 82–83 )...................................................... 18

18. Yellow tomentum on head usually confined to adjacent frontal vitta ( Figs 63 View FIGURES 62–63 , 83 View FIGURES 82–83 ). Male cercus with margins of apex subparallel in lateral view. Basal lobe of surstylus without marginal notch in lateral view ( Fig. 133 View FIGURES 124–135 ). Piercer with aculeate lobe length 2.00–2.25 times height of segment 7 base ( Fig. 104 View FIGURES 94–108 ) (Southern U.S.)........................... E. texana (Reinhard) View in CoL

- Yellow tomentum on head usually extending over most of fronto-orbital plate ( Figs 61 View FIGURES 60–61 , 81 View FIGURES 80–81 ). Male cercus with apex dilated in lateral view. Basal lobe of surstylus with marginal notch in lateral view ( Fig. 147 View FIGURES 136–155 . Piercer with aculeate lobe length 2.10–3.50 times height of segment 7 base ( Fig. 102 View FIGURES 94–108 ) (Arizona, New Mexico).............................. E. sabroskyi View in CoL sp. nov.

19. Thoracic vittae thick, inner and outer vittae fused on posterior half of postsutural area ( Figs 10 View FIGURES 10–13 , 33 View FIGURES 30–33 ). Male cerci with apical cleft broadly rounded in caudal view, the apices inclinate ( Fig. 144 View FIGURES 136–155 ). Female end tergite fused at base and forked apically ( Fig. 114 View FIGURES 109–123 ) ( Brazil)............................................................................... E. falcata View in CoL sp. nov.

- Thoracic vittae thin, inner and outer vittae separate on postsutural area (e.g., Figs 5 View FIGURES 2–5 , 14 View FIGURES 14–17 ). Male cerci with apical cleft not broadly rounded in caudal view (e.g., Figs 140, 150 View FIGURES 136–155 ). Female end tergite plates separate ( Figs 110, 118 View FIGURES 109–123 )...................... 20

20. Piercer long, the aculeate lobe length at least three times height of segment 7 base ( Figs 59–60 View FIGURES 58–59 View FIGURES 60–61 ). [Male unknown.]....... 21

- Piercer short, usually not extending past apex of T4, the length of the aculeate lobe subequal to height of segment 7 base (e.g., Figs 95, 103 View FIGURES 94–108 ). Male cercus, if known, with distinct medial bend in lateral view ( Figs 124, 132, 134 View FIGURES 124–135 ).................. 22

21. Abdominal bands continuous, without median vitta ( Fig. 14 View FIGURES 14–17 ). Parafacial tomentum entirely yellow ( Fig. 59 View FIGURES 58–59 ) ( Mexico).......................................................................................... E. luctuosa (Wulp) View in CoL

- Abdomen with distinct median vitta ( Fig. 15 View FIGURES 14–17 ). Parafacial tomentum gray on lower half ( Fig. 60 View FIGURES 60–61 ) ( Mexico, Costa Rica)........................................................................................ E. rivalis (Reinhard) View in CoL

22. Abdominal bands usually covering less than one-half length of T3–5 ( Figs 5 View FIGURES 2–5 , 17 View FIGURES 14–17 , 27 View FIGURES 26–29 , 37 View FIGURES 34–37 )........................... 23

- Abdominal bands covering more than one-half length of T3–5 (e.g., Figs 13 View FIGURES 10–13 , 19 View FIGURES 18–21 , 32 View FIGURES 30–33 ).............................. 24

23. Parafacial tomentum yellow ( Figs 50 View FIGURES 50–51 , 72 View FIGURES 72–73 ). Palpus yellow to yellow-tan. Male cercus with distinct apical hook in lateral view ( Fig. 124 View FIGURES 124–135 ) ( Brazil).................................................................. E. aurata (Townsend) View in CoL

- Parafacial tomentum gray ( Figs 62 View FIGURES 62–63 , 82 View FIGURES 82–83 ). Palpus brown to black. Male cercus without distinct apical hook in lateral view ( Fig. 132 View FIGURES 124–135 ) ( Mexico to Argentina).............................................................. E. strigata (Wulp)

24. Parafacial tomentum gray ( Fig. 77 View FIGURES 76–77 ) ( Costa Rica).......................................... E. crambivora View in CoL sp. nov.

- Parafacial tomentum yellow ( Figs 58 View FIGURES 58–59 , 64 View FIGURES 64–65 , 84 View FIGURES 84–85 )............................................................. 25

25. Piercer in caudal view broad, triangular, the margins narrowed to apex ( Mexico).................. E. woodorum View in CoL sp. nov.

- Piercer in caudal view narrow, linear, the margins subparallel to apex ( Costa Rica)............... E. jorgecortesi View in CoL sp. nov.