Metrodorini
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https://doi.org/10.11646/zootaxa.5597.1.1 |
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lsid:zoobank.org:pub:E8B87293-0CCD-469D-9F2F-17F1AB4919BF |
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https://treatment.plazi.org/id/542B87FD-FFA8-0411-9FDE-C77FFAD1FCE7 |
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treatment provided by |
Plazi (2025-03-04 12:56:25, last updated 2025-03-04 13:25:28) |
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scientific name |
Metrodorini |
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Tribe Metrodorini Bolívar, 1887
Type genus: Metrodora Bolívar , 1887.
Emended description. Body mostly robust ( Figs. 1A View FIGURE 1 , 4A View FIGURE 4 , 12A View FIGURE 12 , 60 View FIGURE 60 , 73 View FIGURE 73 ), but with slender species ( Figs. 64 View FIGURE 64 , 68 View FIGURE 68 ), and small to medium size species (4–16 mm.). Head little exserted (i.e., top of head slightly surpassing the anterior margin of pronotum in lateral view); upper margin of the vertex approximately at the level of the upper margin of the compound eyes; vertex approximately two or more times wider than the eye; carinae of the vertex produced, with lateral carinae forming more or less pronounced horns and medial carina visibly compresso-elevated (i.e., slender and elevated) ( Figs. 1D View FIGURE 1 , 7A View FIGURE 7 , 29A View FIGURE 29 ), extremely in Miriatra ( Figs. 63A View FIGURE 63 , 64D View FIGURE 64 , 67A View FIGURE 67 , 68B View FIGURE 68 ). In lateral view, medial carina usually protrudes beyond the eyes, at least slightly visible ( Figs. 26B View FIGURE 26 , 34B View FIGURE 34 , 47B View FIGURE 47 , 67B View FIGURE 67 ) (in Metrodora s. str. and Platytettix stat. resurr. not protrudes ( Figs. 1A View FIGURE 1 , 10B View FIGURE 10 )). Anterior margin of the vertex rounded; fastigium of the vertex not forming an elongated horn, dorsum without fossulae ( Figs. 1E View FIGURE 1 , 10C View FIGURE 10 , 67C View FIGURE 67 ). Antennal groves located below the lower margin of the eyes, and antennae usually short, with 10–15 segments ( Figs. 10C View FIGURE 10 , 22C View FIGURE 22 , 67B View FIGURE 67 ). Scutellum mostly wide 1.5–3 times wider than scape ( Figs. 10A View FIGURE 10 , 26C View FIGURE 26 , 34A View FIGURE 34 ), rarely narrow; frontal costa mid-sized, bifurcation variable from around the mid-level of the eyes to below the ventral margin of the eyes ( Figs. 1D View FIGURE 1 , 22A View FIGURE 22 , 57A View FIGURE 57 , 71C View FIGURE 71 ). Eyes subglobose, with rounded dorsal surface and almost straight ventral margin, occupying a quarter or a fifth of the cephalic capsule in lateral view. Lateral ocelli between the middle or inferior part of the eyes, near the base from where each branch of the fascial carinae diverges; medial ocellus close to the lower margin of the scutellum; palpi with last three segments flattened, first two segments short and nearly cylindrical ( Figs. 1D View FIGURE 1 , 10A View FIGURE 10 , 22A View FIGURE 22 , 26C View FIGURE 26 , 34A View FIGURE 34 , 57A View FIGURE 57 , 71C View FIGURE 71 ). Thorax. Pronotum mostly robust (slender only in Miriatra ( Figs. 64 View FIGURE 64 , 66 View FIGURE 66 , 68A View FIGURE 68 )); variable in shape; median carina with different elevations, forming crests, humps ( Figs. 10B View FIGURE 10 , 12A View FIGURE 12 , 26A View FIGURE 26 , 60B View FIGURE 60 ), or flat ( Figs. 30A View FIGURE 30 , 42A View FIGURE 42 ); dorsal surface of pronotum, between the carinae, granulate, median carina continuous from the anterior margin to the posterior apex, with anterior margin straight (few taxa have it extended towards the front) and apex truncated or acute ( Figs. 1C View FIGURE 1 , 9B View FIGURE 9 , 21B View FIGURE 21 , 60A View FIGURE 60 , 66B View FIGURE 66 ). Lateral lobes of the pronotum, in lateral view, quadrangular; in dorsal view lower margins mostly well-projected to the sides, directed slightly sidewards, and with rounded or acute apex ( Figs. 1E View FIGURE 1 , 10C View FIGURE 10 , 30B View FIGURE 30 ). Humeral angle wide, obliquely concave; infrascapular area wide (narrow only in winged species), with different lengths, reaching between the third and ninth abdominal segment in lateral view; lateral area arising on the dorsal undulation of the infrascapular area, with similar width and reaching the apex in lateral view (although in some taxa the lateral area is poorly developed). Wings. Most species apterous, with few exceptions, such as Miriatra (hind wings reaching the apex of the pronotum ( Figs. 66 View FIGURE 66 , 69 View FIGURE 69 )) and † Electrotettix (rudimentary hind wings). Legs. Fore and mid-femora compressed, with or without conspicuous undulations, sometimes forming some prolongations. Mid-femur dorsally carinated. Hind femur with uniform coloration on the external surface; genicular and antegenicular teeth moderately or well-developed ( Figs. 12A View FIGURE 12 , 19A View FIGURE 19 , 26A View FIGURE 26 ) (poorly developed only in Rehniatria gen. nov. ( Figs. 71A View FIGURE 71 , 72 View FIGURE 72 )). Hind tibia scarcely ampliated near the apex; first and third segments of the hind tarsi equal in length.
Abdomen. Male: last segments constricted in different levels, and tapering dorsally, joining towards distal portion ( Figs. 8B View FIGURE 8 , 11B View FIGURE 11 , 16F View FIGURE 16 ); penultimate sternite variable, longer or as long as the subgenital plate; cerci conical and reduced ( Figs. 8A View FIGURE 8 , 11D View FIGURE 11 , 16G View FIGURE 16 ). Subgenital plate short, cupuliform, apex rounded ( Figs. 8C View FIGURE 8 , 11B View FIGURE 11 , 16H View FIGURE 16 ) ( Rehniatria gen. nov. with a conspicuous incision at the apex ( Figs. 72B View FIGURE 72 ), and Bolivaridora gen. nov. with a small mid notch ( Figs. 51H View FIGURE 51 )). Female: epiproct triangular or ovoid, with or without medial groove ( Figs. 18C View FIGURE 18 , 22F View FIGURE 22 ). Subgenital plate of variable shape, mainly quadrangular ( Figs. 18E View FIGURE 18 , 22H View FIGURE 22 , 39D View FIGURE 39 , 67H View FIGURE 67 ). Lower valves of ovipositor covered or not by the lateral edges of the subgenital plate; valves armed with medium-sized teeth ( Figs. 18D View FIGURE 18 , 22G View FIGURE 22 , 67G View FIGURE 67 ).
Remarks. Recently, the tribe was delimited by Kasalo et al. (2023a). The diagnosis provided by the authors is useful for differentiation with the other suprageneric taxa of the subfamily, and they also synonymized the tribes Miriatrini and Mucrotettigini under Metrodorini . In this contribution, specimens from different genera and species were reviewed to analyze additional characters, and we partially agree with Kasalo’s et al. (2023a) proposal. We included the synonymized tribes as subtribes, which are differentiated in the following taxonomic key.
Bolivar, I. (1887) Essai sur les Acridiens de la tribu des Tettigidae. Annales de la Societe Entomologique de Belgique, 31, 175-313.
Kasalo, N., Yong, S., Rebrina, F. & Skejo, J. (2023 a) Definition of the tribe Metrodorini (Orthoptera: Tetrigidae) with notes on biogeography and evolution of Metrodorinae and Cladonotinae. Acta Entomologica Musei Nationalis Pragae, 63 (1), 187-193. https://doi.org/10.37520/aemnp.2023.010
FIGURE 1. Metrodora rana Bolívar, 1887. Male holotype. A. Habitus in lateral view. B. Labels. C. Habitus in dorsal view. D. Frons. E. Head and pronotum in dorsal view. Photos: M. París (MNCN).
FIGURE 4. Tylotettix pygmaea Roberts, 1937 comb. rev. Female holotype. A–B. Habitus in lateral view. C. Frons. D. labels.
FIGURE 7. Platytettix uniformis Bruner, 1910 comb. rev. Male. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur.
FIGURE 8. Platytettix uniformis Bruner, 1910 comb. rev. Male terminalia. A. Dorsal. B. Lateral. C. Axial D. ventral views.
FIGURE 9. Platytettix pilosus Cadena-Castañeda & Tavares sp. nov. Male habitus A. Lateral and B. Dorsal views.
FIGURE 10. Platytettix pilosus Cadena-Castañeda & Tavares sp. nov. Male. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur.
FIGURE 11. Platytettix pilosus Cadena-Castañeda & Tavares sp. nov. Male terminalia. A. Dorsal. B. Lateral. C. Axial. D. Ventral views.
FIGURE 12. Platytettix reticulatus Hancock, 1906 comb. rev. Female habitus A. Lateral and B. Dorsal views. Photos: J. Tumbrinck.
FIGURE 16. Platytettix arcuatus Bruner, 1920 comb. rev. Male. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur.
FIGURE 18. Platytettix arcuatus Bruner, 1920 comb. rev. Female A–B. Head and thorax in lateral and dorsal views. C–E. Terminalia in dorsal, lateral and ventral views respectively.
FIGURE 19. Platytettix gibbosulus (Walker, 1871) comb. nov. Female holotype. A–B. Habitus in lateral views. Photos: J. Tumbrinck.
FIGURE 21. Platytettix gibbosulus (Walker, 1871) comb. nov. Female habitus A. Lateral and B. Dorsal views.
FIGURE 22. Platytettix gibbosulus (Walker, 1871) comb. nov. Female. A. Frons. B–C. Head and thorax in lateral and dorsal views. D. Fore femur. E. Mid femur. F–H. Terminalia in dorsal, lateral and ventral views respectively.
FIGURE 26. Cota undulata (Cadena-Castañeda & Cardona, 2015) A–C. Male holotype. A. Habitus in lateral view. B. Head and thorax in lateral view. C. Frons. D. Female paratype in lateral view.
FIGURE 29. Cota caxiuana Cadena-Castañeda & Tavares sp. nov. Male. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur. F–H. Terminalia in lateral, axial and ventral views respectively.
FIGURE 30. Hancockiella armata Cadena-Castañeda & Cardona, 2015. Male A. Habitus in lateral and B. Dorsal views. C. Frons. D. Apex body detail.
FIGURE 34. Hebardidora harroweri (Hebard, 1924) comb. nov. Male. A. Frons. B. Head and thorax in lateral and, C. Dorsal views. D. Mid femur.
FIGURE 39. Hebardidora kasaloi Cadena-Castañeda & Tavares sp. nov. Female paratype. A. Frons. B. Head and thorax in lateral and, C. Dorsal views. D. Terminalia in ventral view. E. Mid femur.
FIGURE 42. Bolivaridora paraensis Cadena-Castañeda & Tavares sp. nov. Male holotype habitus. A. Lateral and B. Dorsal views.
FIGURE 47. Bolivaridora tani Cadena-Castañeda & Tavares sp. nov. Male holotype. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur. F–H. Terminalia in lateral, dorsal and axial views respectively.
FIGURE 51. Bolivaridora cipolai Cadena-Castañeda & Tavares sp. nov. Male holotype. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur. F–H. Terminalia in lateral, dorsal and axial views respectively.
FIGURE 57. Bolivaridora parisae Cadena-Castañeda & Tavares sp. nov. Female holotype. A. Frons.B–C. Head and thorax in lateral and dorsal views, respectively. D. Fore femur. E. Mid femur. F–G. Terminalia in lateral and ventral views, respectively.
FIGURE 60. Habitus in lateral view of Mucrotettigina species. A. Hottettix haitianus Perez-Gelabert, Hierro & Otte, 1998. B. Cubonotus altinotatus Perez-Gelabert, Hierro & Otte, 1998.
FIGURE 63. Miriatra arawaka Rehn, 1939. Female holotype. A. Frons. B. Habitus in dorsal view. After Rehn (1939).
FIGURE 64. Miriatra boliviana Günther, 1939. Female lectotype. A–B. Habitus in lateral views. C. Habitus in dorsal view. D. Frons. E. Labels. Photos: J. Tumbrinck.
FIGURE 67. Miriatra chalazombra Günther, 1939. Female. A. Frons. B–C. Head and thorax in lateral and dorsal views, respectively. D. Fore femur. E. Tegmina. F–H. Terminalia in axial, lateral and ventral views, respectively.
FIGURE 68. Miriatra producta (Bolívar, 1887). Female lectotype.A. Habitus in lateral view. B. Frons. C. Head and thorax in lateral view. D. Terminalia in lateral view. E. Labels. Photos: M. París (MNCN).
FIGURE 69. Miriatra producta (Bolívar, 1887). Female paralectotype.A. Habitus in lateral and, B. Dorsal views. C. Terminalia in lateral. D. and ventral views. E. Labels. Photos: M. París (MNCN).
FIGURE 71. Rehniatra brevifastigiata (Cadena-Castañeda & Cardona, 2015) n. gen et comb. nov. Male holotype. A–B. Habitus in lateral and dorsal views. C. Frons. D. Head and thorax in lateral view.
FIGURE 72. Rehniatra brevifastigiata (Cadena-Castañeda & Cardona, 2015) comb. nov. A. Male holotype in live condition. Envigado, Antioquia Departament, Colombia (type locality). Photo: Juan Manuel Cardona Granda. B. Aditional male from Támesis, Antioquia, Colombia. Photo: Carlos Augusto Mesa Londoño https://www.inaturalist.org/observations/10050696. CC BY-NC-ND 4.0 DEED.
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.
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