Chelonus Panzer, 1806
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publication ID |
https://doi.org/ 10.11646/zootaxa.5278.3.3 |
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publication LSID |
lsid:zoobank.org:pub:1AAFCC5B-14BA-4E13-B25E-5C132CB9085A |
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DOI |
https://doi.org/10.5281/zenodo.7917735 |
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persistent identifier |
https://treatment.plazi.org/id/1641634C-A537-5617-FF3E-757EFCF7D333 |
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treatment provided by |
Plazi |
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scientific name |
Chelonus Panzer, 1806 |
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Genus Chelonus Panzer, 1806 View in CoL View at ENA
Key to the subgenera of Chelonus View in CoL reported from India (modified from Zhou et al. 2022)
1. Metasomal carapace with a dorso-apical spine-like protuberance ( Figs 1A View FIGURE 1 , 2C View FIGURE 2 ); vein SR1 of fore wing sometimes incomplete ( Fig. 2F View FIGURE 2 ); carapace with narrow straight lamella ventrally ( Figs 1A View FIGURE 1 , 2D, E View FIGURE 2 )...................... Areselonus Braet, 1999
- Metasomal carapace without a dorso-apical spine-like protuberance [with ( Figs 15C, E View FIGURE 15 ) or without ventro-apical tooth-like protuberances] ( Figs 4C, D View FIGURE 4 ); vein SR1 of fore wing complete ( Fig. 13A View FIGURE 13 ); metasomal carapace with ( Figs 9A View FIGURE 9 , 15D View FIGURE 15 ) or without ( Fig. 11E View FIGURE 11 ) undulating lamella ventrally.................................................................... 2
2. Metasomal carapace with a pair of horns apically ( Figs 7C View FIGURE 7 , 9C View FIGURE 9 , 12A View FIGURE 12 , 15C, E View FIGURE 15 )............... Megachelonus Baker, 1926
- Metasomal carapace rounded apically without horns ( Figs 4D View FIGURE 4 , 20C, D View FIGURE 20 , 22B View FIGURE 22 )...................................... 3
3. Frons deeply excavated posteriorly and smooth ( Figs 3C, D View FIGURE 3 ); metasomal carapace very broadly truncate apically ( Fig 4D View FIGURE 4 ) and ventral opening slightly longer than half length of carapace, opening surrounded by a lamelliform carina ( Figs 4C, 4E View FIGURE 4 , 5D View FIGURE 5 ).............................................................................. Carinichelonus Tobias, 2000
- Frons shallowly excavated posteriorly, and more or less sculptured ( Figs 8C View FIGURE 8 , 10C View FIGURE 10 , 14C View FIGURE 14 ); metasomal carapace more or less narrowed apically and ventral opening usually distinctly longer than half length of carapace, and opening usually without a lamelliform carina ( Figs 12B View FIGURE 12 , 17D View FIGURE 17 , 22A, C View FIGURE 22 )................................................................ 4
4. Third tergite of metasomal carapace almost straightly narrowed posteriorly in dorsal view ( Fig. 17C View FIGURE 17 ); apex of metasomal carapace of both sexes truncate and narrow in dorsal view ( Fig. 17C View FIGURE 17 ) and oblique in lateral view ( Fig. 17B View FIGURE 17 ); carapace of male deeply incurved (about one fourth of total length of carapace) in lateral view ( Figs 17B, D View FIGURE 17 ).. Mirachelonus Zhou et al., 2022
- Third tergite of metasomal carapace hardly or not narrowed posteriorly in dorsal view ( Figs 4D View FIGURE 4 , 13B View FIGURE 13 , 22B View FIGURE 22 ); apex of metasomal carapace round posteriorly or nearly so in dorsal and lateral view ( Figs 4D View FIGURE 4 , 13B View FIGURE 13 , 22B View FIGURE 22 ); carapace of male gradually rounded in dorsal view ( Fig. 13B View FIGURE 13 )................................................................................. 5
5. Female with 16 antennomeres ( Fig. 6A View FIGURE 6 ); carapace of male with apical opening ( Fig. 12D View FIGURE 12 ).. Microchelonus Szépligeti, 1908
- Female with more than 16 antennomeres; carapace of male variable, usually without distinct opening.................. 6
6. Antennomeres of female 30–32 ( Figs 19A View FIGURE 19 , 21A View FIGURE 21 ); metasomal carapace of male with deep apical opening............................................................................................... Parachelonus Tobias, 1995
- Antennomeres of both sexes 17–26; metasomal carapace of male closed apically................. Chelonus Panzer, 1806 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.