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The Afrotropical species hitherto considered to belong to the genera Paratettix Bolivar, 1887, Leptacrydium Chopard, 1950 and Hedotettix Bolivar, 1887 are reviewed, and two new genera, Alienitettix nov. gen. and Rectitettix nov. gen., are established. Four new species are described: Alienitettix usambarensis nov. sp., Leptacrydium femurcrassum nov. sp., Leptacrydium rhombeum nov. sp. and Rectitettix burri nov. sp. Several new combinations are created: Alienitettix gilloni (Günther, 1979) nov. comb. for Paratettix gilloni, Alienitettix villiersi (Günther, 1979) nov. comb. for Paratettix villiersi, Hippodes abidjanensis (Günther, 1979) nov. comb. for Coptotettix abidjanensis, Leptacrydium nanum (Bruner, 1910) nov. comb. for Tetrix nanus and Paratettix royi (Günther, 1979) nov. comb. for Leptacrydium royi. Paratettix angustivertex Bolivar, 1908 is resurrected. It is discussed whether the North American Tetrix arenosa (Burmeister, 1838) belongs to Tetrix and Tetrigini. The following synonyms are established: Coptotettix annulipes Karsch, 1890 nov. syn. and C. convexus Hancock, 1910 nov. syn. = C. rufipes Bolivar, 1887; Paratettix asbenensis Chopard, 1950 nov. syn. = P. pallipes (Walker, 1871); Telmatettix burri Hancock, 1900 nov.syn. and Paratettix macrostenus Günther, 1979 nov. syn. = Paratettix subpustulatus (Walker, 1871); Paratettix chopardi Günther, 1979 nov. syn. = P. africanus Bolivar, 1908; Paratettix marshalli Hancock, 1908 nov. syn. = Paratettix scaber (Thunberg, 1815); Paratettix obtusipulvillus Günther, 1979 nov. syn. = Paratettix spretus Günther, 1979; and Tettix waelboecki Bolivar, 1908 nov. syn. = Leptacrydium gratiosum (Karsch, 1893). Identification keys for all species and pictures of the majority of species are presented. New country records are given. New definitions of the pronotal forms in Tetrigidae are established based on their relationship to the fore (elytra) and hind wings (alae), with a new form, the pauropronotal, being introduced for the form where the fully functional hind wings are clearly longer than the pronotum; the new form is apomorphous for the Afrotropical Tetrigini. A provisional diagnosis for the (Afrotropical) Tetrigini is given. Coptotettix Bolivar, 1887 is removed from the Tetrigini and placed near Thoradontini and Criotettigini.

The African genus-group Metarbelodes Strand, 1909 of the family Metarbelidae comprises three genera: the monotypic Metarbelodes; Zambezia, gen. nov. with five new species (i.e., Zambezia diredaouaensis sp. nov.; Zambezia madambae sp. nov.; Zambezia jennyhuntae sp. nov.; Zambezia durrellbarnesi sp. nov.; Zambezia darrelplowesi sp. nov.); and Lukeniana, gen. nov. with 28 new species (i.e., Lukeniana enaiposha sp. nov.; Lukeniana raymondrevellii sp. nov.; Lukeniana rajaeii sp. nov.; Lukeniana tubiraensis sp. nov.; Lukeniana lutztoepferi sp. nov.; Lukeniana madrandelei sp. nov.; Lukeniana friederikebauerae sp. nov.; Lukeniana chapmani sp. nov.; Lukeniana michaelgrzimeki sp. nov.; Lukeniana kammeri sp. nov.; Lukeniana timdavenporti sp. nov.; Lukeniana mzuzuensis sp. nov.; Lukeniana mbalaensis sp. nov.; Lukeniana robplowesi sp. nov.; Lukeniana hausmanni sp. nov.; Lukeniana lenzi sp. nov.; Lukeniana stueningi sp. nov.; Lukeniana utaheidenreichae sp. nov.; Lukeniana georgeadamsoni sp. nov.; Lukeniana mikerobertsi sp. nov.; Lukeniana andreashempi sp. nov.; Lukeniana kakamegaensis sp. nov.; Lukeniana jankiellandi sp. nov.; Lukeniana bergsteni sp. nov.; Lukeniana carolae sp. nov.; Lukeniana stevecollinsi sp. nov.; Lukeniana butleri sp. nov.; Lukeniana kollhorsti sp. nov.), plus Lukeniana obliqualinea (Bethune-Baker, 1909), new comb. Metarbelodes is recorded only from the Bvumba Mountains in eastern Zimbabwe; Zambezia is represented by one species in the northern escarpment of the Harar Plateau (East-Central Ethiopia) and four species on the Southern African Plateau and the adjacent Bvumba Mountains; and Lukeniana occurs near the northern edge of the Southern African Plateau, but primarily in areas associated with the East African Rift System (EARS; both the Western and Eastern Branch). We provide detailed descriptions and images of all species and the first identification key. This revision represents the first comprehensive taxonomic treatment of the group and provides the basis for future work on this rare and cryptic, but diverse group of moth.

A new genus, Afrosystolederus, and a new species, Afrosystolederus garmsi, are described from Mount Gibi in Liberia. This African genus is most similar to Pseudosystolederus Günther, 1939 from Africa and Madagascar and to some members of Systolederus Bolivar, 1887 from Asia. The taxonomic difficulties of genera and species with a narrow fastigium are discussed. Teredorus aztecus nov.comb. is transferred from the genus Paratettix Bolivar, 1887. It is proposed to transfer all Indo-Malayan species from Teredorus Hancock, 1907 to Systolederus Bolivar, 1887, resulting in 26 new combinations and six replacement names: Systolederus albimarginus (Zheng & Zhou, 1996) nov. comb., Systolederus bashanensis (Zheng, 1993) nov. comb., Systolederus bhattacharyi (Shishodia, 1991) nov. comb., Systolederus bidentatus (Zheng, Huo & Zhang, 2000) nov. comb., Systolederus bipulvillus (Zheng, 2006) nov. comb., Systolederus brachynotoides Zheng, Ou & Lin, 2012 nov. comb., Systolederus brachynotus (Zheng & Xu, 2010) nov. comb., Systolederus camurimarginus (Zheng, 1998) nov. comb., Systolederus carmichaeli (Hancock, 1915) nov. comb., Systolederus chiangraensis (Za, Wen, Kang & Hyde, 2016) nov.comb., Systolederus combfemorus (Za, Wen, Kang & Hyde, 2016) nov. comb., Systolederus ebenotus (Zheng & Li, 2001) nov. comb., Systolederus eurylobatus (Zheng, Shi & Mao, 2010) nov. comb., Systolederus flatimarginus (Zheng & Liang, 2000) nov. comb., Systolederus flavistrial (Zheng, 2006) nov. comb., Systolederus frontalis (Hancock, 1915) nov.comb., Systolederus guizhouensis (Zheng, 1993) nov. comb., Systolederus hainanensis (Zheng, 1993) nov. comb., Systolederus longipulvillus (Zheng, 1988) nov. comb., Systolederus nigropennis (Deng, Zheng & Lu, 2013) nov. comb., Systolederus parvipulvillus (Deng, Lei & Zheng, 2014) nov. comb., Systolederus prominemarginis (Zheng & Jiang, 1993) nov. comb., Systolederus taibeiensis (Zheng & Xu, 2010) nov. comb., Systolederus xishuiensis (Zheng, Li & Shi, 2003) nov. comb. , Systolederus wuyishanensis (Zheng, 1993) nov. comb., Systolederus lii Devriese nov. nom., Systolederus lini Devriese nov.nom., Systolederus oui Devriese nov. nom., Systolederus rongduensis Devriese nov. nom., Systolederus yuanlingensis Devriese nov. nom., Systolederus zhengi Devriese nov. nom.

The genus Thalpomena Saussure, 1884 is distributed in North Africa, Somalia and Ethiopia. It currently contains nine species, including one species with four subspecies; Seven of them (including one with four subspecies) are distributed in the Atlas Mountains, one in Libya and one (originally described in the genus Vosseleria) in the Somali Highlands. In this study, we propose taxonomic changes based on morphological, genetic, ecological and morphometric data from a previous study. The following species remain valid: Thalpomena algeriana (Lucas, 1849); Thalpomena azureipennis Uvarov, 1927; Thalpomena coerulescens Uvarov, 1923; Thalpomena dernensis (Werner, 1908); and Thalpomena viridipennis Uvarov, 1927. The following names are proposed here as junior synonyms of T. algeriana: Thalpomena algeriana intermedia Dirsh, 1949 (new synonym), Thalpomena algeriana montana Dirsh, 1949 (new synonym), Thalpomena coeruleipennis Finot, 1895 (new synonym), Thalpomena deserta Dirsh, 1949 (new synonym). Thalpomena rungsi Dirsh, 1949 is a new synonym of T. azureipennis; Thalpomena algeriana maroccana Dirsh, 1949 is a new synonym of T. viridipennis. The only East African representative of the genus, Thalpomena schulthessi (Uvarov, 1923), is transferred to the genus Vosseleriana (new combination).

Sphingonotus (Sphingonotus) changlangensis sp. nov.  is a new species of  Sphingonotus  described from Namdapha National Park, Changlang District, Arunachal Pradesh, India. An annotated checklist of members of the genus  Sphingonotus occurring in India is provided.

Sphingonotus is a species-rich genus of band-winged grasshoppers (Oedipodinae), comprising more than 170 species, with its diversity hotspots in the Mediterranean, and in Central and Eastern Asia. Iran represents one of the countries with the highest species diversity for the genus with a total of 31 recorded species. However, no study so far has provided a faunistic overview and no identification keys are available. Here, we present an annotated list of all Sphingonotus species found in Iran derived from records from field observations, museum collections and literature data. Based on morphological and distribution data we synonymize Sphingonotus intutus Saussure, 1888 syn. nov. under Sphingonotus nebulosus persa Saussure, 1884 and Sphingonotus obscuratus transcaspicus Uvarov, 1925 syn. nov. under Sphingonotus obscuratus brunneri Saussure, 1884. We present images of representative specimens (mostly types) of all species, as well as distribution maps and ecological data. Finally, we provide an online key to all known species of Sphingonotus from Iran, which will continuously be updated.