Metrodorini

Cadena-Castañeda, Oscar J., Quintana-Arias, Ronald Fernando, Infante, Ivette Coque, Silva, Daniela Santos Martins & Tavares, Gustavo Costa, 2025, Studies on pygmy grasshoppers: On the current Metrodorinae sensu lato classification (Orthoptera: Tetrigidae) with emphasis on American and Malagasy taxa, Zootaxa 5597 (1), pp. 1-265 : 12

publication ID	https://doi.org/10.11646/zootaxa.5597.1.1
publication LSID	lsid:zoobank.org:pub:E8B87293-0CCD-469D-9F2F-17F1AB4919BF
persistent identifier	https://treatment.plazi.org/id/542B87FD-FFA9-0411-9FDE-C02AFA5FFA3F
treatment provided by	Plazi
scientific name	Metrodorini
status

Treatment

Key to subtribes of Metrodorini

1. Carinae of the vertex conspicuously produced ( Figs. 64B View FIGURE 64 , 67B View FIGURE 67 , 74B View FIGURE 74 ). Scutellum almost narrow, delimited by the frontal costa with its nearly straight branches ( Figs. 63A View FIGURE 63 , 68B View FIGURE 68 , 74A View FIGURE 74 ). Median carinae of the pronotum not arcuate, with pronotal disc generally flat, without conspicuous crests ( Figs. 68A View FIGURE 68 , 70D View FIGURE 70 ). Wings well-developed, as long as the pronotum or slightly exceededing it ( Figs. 69A View FIGURE 69 , 70A View FIGURE 70 ). Genicular tooth of hind femora poorly developed ( Figs. 71A View FIGURE 71 , 73A View FIGURE 73 ).............. Miriatrina , stat. nov.

- Carinae of the vertex poorly or well produced ( Figs. 1A View FIGURE 1 , 29B View FIGURE 29 ). Scutellum generally two or three times wider than scape. Frontal costa branches usually curved or diverging, rarely straight ( Figs. 1D View FIGURE 1 , 3C View FIGURE 3 , 29A View FIGURE 29 ). Median carina of the pronotum mostly arcuate, forming a crest with different levels of development ( Figs. 1E View FIGURE 1 , 12A View FIGURE 12 , 59 View FIGURE 59 ). Wings in most species absent. Genicular tooth of hind femora well-developed ( Figs. 12A View FIGURE 12 , 62B View FIGURE 62 )................................................................... 2

2. Pronotal disc with a constant width, only narrowing near the apex. Hind margin of the pronotum truncated; if not wholly truncated, with a secondary extension like a spine, arising in the middle of the apex of the pronotum ( Figs. 60A View FIGURE 60 , 61A View FIGURE 61 ). Lower margin of the lateral lobes of the pronotum moderately projected to the sides, with a rounded apex ( Figs. 60B View FIGURE 60 , 61B View FIGURE 61 ), without spines (except in Armasius View in CoL ). Antennae with 10–12 segments ( Figs. 61B View FIGURE 61 , 62A View FIGURE 62 ), (only Mucrotettix View in CoL with 14 segments ( Figs. 59B, C View FIGURE 59 ))............................................................................ Mucrotettigina , stat. nov.

- Pronotal disc progressively narrowing towards the apex. Hind margin of the pronotum pointed ( Figs. 1C View FIGURE 1 , 6B View FIGURE 6 , 17B View FIGURE 17 , 56B View FIGURE 56 ). Lower margin of the lateral lobes of the pronotum conspicuously projected to the sides in the form of a spine, usually triangular ( Figs. 1E View FIGURE 1 , 16C View FIGURE 16 , 39C View FIGURE 39 , 56C View FIGURE 56 ). Antennae with 14–15 segments ( Figs. 2E View FIGURE 2 , 7C View FIGURE 7 , 45C View FIGURE 45 )....................... Metrodorina , stat. nov.