Pyesexora, Viswajyothi & Clark, 2022

Viswajyothi, Keezhpattillam & Clark, Shawn M., 2022, New World genera of Galerucinae Latreille, 1802 (tribes Galerucini Latreille, 1802, Metacyclini Chapuis, 1875, and Luperini Gistel, 1848): an annotated list and identification key (Coleoptera: Chrysomelidae), European Journal of Taxonomy 842, pp. 1-102 : 16-17

Genus Pyesexora gen. nov.

urn:lsid:zoobank.org:act:6EA58217-4FF6-471D-BD61-01C244A63265

Type species

Crioceris detrita Fabricius, 1801 , by present designation.

Diagnosis

All of the named species in this genus were most recently placed in Pyesia Clark, 1865 , but they dramatically differ from true members of that genus. Among other things, the aedeagus of Pyesexora gen. nov. is symmetrical in dorsal view, while that of Pyesia is strongly asymmetrical. See the following key for additional diagnostic characters.

Etymology

The name ‘ Pyesexora ’ is a combination of Pyesia and Exora . It should be treated as a female noun.

Remarks

This new genus occurs from Mexico through much of South America, as well as in the Lesser Antilles. It includes P. detrita detrita (Fabricius, 1801) [originally named in Crioceris Geoffroy, 1762 ], P. detrita laevicollis ( Jacoby, 1887) [originally named in Malacosoma Chevrolat, 1837 ], P. detrita meridionalis ( Bechyné, 1958) [originally named in Pyesia ], P. elytropleuralis elytropleuralis ( Bechyné, 1958) [originally named in Pyesia ], and P. elytropleuralis subalutacea ( Bechyné, 1958) [originally named in Pyesia ], all comb. nov. The genus is in need of taxonomic revision. Our examinations show that there are numerous species, markedly differing from each other in aedeagal shape. Some of the differences we have seen may correspond to the named subspecies, and, if so, these should be elevated to species rank. Other aedeagal differences surely correspond to unnamed species. See Figs 63 , 145, 148 , 156 , 189 , and 196 for a habitus illustration and morphological details. See Bechyné (1958) for a key to distinguish some of the putative species and subspecies (cited as Pyesia ).

Figures

Figs 55–63. Dorsal views. 55. Zepherina variegata (Weise, 1921). 56. Exora olivacea (Fabricius, 1801). 57. Masurius sp. 58. Elyces? quadrimaculatus Jacoby, 1888. 59. Byblitea jansoni (Jacoby, 1878). 60. Sonyadora quadripustulata (Bowditch, 1925). 61. Malacorhinus foveipennis (Jacoby, 1879). 62. Trigonexora diversemaculata (Bechyné, 1956). 63. Pyesexora sp.

Figs 144–152. 144. Syphaxia maculata Jacoby, 1899, simple claws. 145. Pyesexora sp., appendiculate claws. 146. Monocesta coryli (Say, 1824), bifid claws. 147. Diorhabda carinulata (Desbrochers des Loges, 1870), bifid claws. 148. Pyesexora sp., basal spur of aedeagus present.149. Scelolyperus cyanellus (LeConte, 1865), basal spur of aedeagus absent. 150. Galeruca costatissima Blake, 1945, closed procoxal cavities. 151. Erynephala puncticollis (Say, 1824), open procoxal cavities. 152. Platycesta depressa (Viswajyothi & Clark, 2021), open procoxal cavities.

Figs 153–157. 153. Galerucella nymphaeae (Linnaeus, 1758), ventral view. 154. Ophraea rugosa Jacoby, 1886, ventral view. 155. Zepherina defensa (Bechyné, 1956), head, including maxillary palpi. 156. Pyesexora sp., head, including maxillary palpi. 157. Byblitea sp., lower portion of head, including maxillary palpi.

Figs 189–194. Anterior portions of bodies. 189. Pyesexora sp., dorsal view. 190. Cochabamba chrysopleura (Harold, 1875), dorsal view. 191. Anisobrotica sp., dorsal view. 192. Megarhabda sp., dorsal view. 193. Metrobrotica geometrica (Erichson, 1847), lateral view showing absence of lateral pronotal carina. 194. Cyclotrypema furcata (Olivier, 1308), lateral view showing absence of lateral pronotal carina.