Cyrtusa, Erichson, 1842
publication ID |
https://doi.org/ 10.5281/zenodo.5193714 |
publication LSID |
lsid:zoobank.org:pub:1CC5FBEF-1373-444C-AA1C-0E80445A7B6E |
DOI |
https://doi.org/10.5281/zenodo.5195817 |
persistent identifier |
https://treatment.plazi.org/id/146C8794-FFFE-B937-FF6F-AF54FA08FB01 |
treatment provided by |
Felipe |
scientific name |
Cyrtusa |
status |
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Key to the North American “ Cyrtusa View in CoL ” and “ Leiodes ” genus-groups and their genera in the continental United States and Canada
1. Mesosternum vertical between mesocoxae; the “ Cyrtusa View in CoL genus group” ..................................... 2
– Mesosternum oblique between mesocoxae; the “ Leiodes View in CoL genus group” ...................................... 7
2(1). Antenna with 11 antennomeres, with interrupted 5-antennomere club, antennomere 8 narrow and disk-shaped .......................................................................................................................... 3
– Antenna with 10 antennomeres, with compact 3- or 4-antennomere club ................................. 5
3(2). Mesosternum with a median carina; each mandible with a single median tooth........................ ...................................................................................................................... Anogdus LeConte View in CoL
– Mesosternum not carinate; left mandible may have a small tooth, right mandible edentate... 4
4(3). Underside of head without antennal grooves; anterior margin of clypeus straight or evenly curved; both mandibles lack prominent teeth; male mesotibia with process on inner apical margin ........................................................................................................ Liocyrtusa Daffner View in CoL
– Underside of head usually with antennal grooves; anterior margin of clypeus clearly sinuous; left mandible in anterior third usually with one or two small teeth; male mesotibia without process on inner apical margin .................................................................... Lionothus Brown View in CoL
5(2). Tibiae narrow; metatibia with spines on ventral side but not on outer margin; right mandible in anterior third with blunt tooth, left mandible edentate ........................ Cyrtusa Erichson View in CoL
– Tibiae widened, shovel-like; outer margin of metatibia strongly spined; left mandible with large tooth at basal third, right mandible edentate........................................................................... 6
6(5). Antennal club with 4 antennomeres ............................................................. Zeadolopus Broun View in CoL
– Antennal club with 3 antennomeres ................................................................. Isoplastus Horn View in CoL
7(1). Mesosternum with a median longitudinal carina ........................................... Leiodes Latreille View in CoL
– Mesosternum unmodified, not carinate ............................................ Ecarinosphaerula Hatch View in CoL
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