Omorgus (Omorgus) triestinae Pittino, 1987

Costa-Silva, Vinícius, Strümpher, Werner P. & Vaz-de-Mello, Fernando Z., 2021, Review of the Brazilian species of Omorgus Erichson, 1847 (Coleoptera: Trogidae: Omorginae), Journal of Natural History 54 (31 - 32), pp. 1993-2024 : 2016-2021

Omorgus (Omorgus) triestinae Pittino, 1987

( Figure 7 a-d and 12)

Omorgus triestinae, Pittino, 1987: 378 ; Scholtz 1990: 1407 (as synonym of Omorgus suberosus ), Zídek 2013: 17 (catalogue – as synonym of Omorgus suberosus ); Smith 2017: 88

(as synonym of Omorgus suberosus ); Zídek 2017: 109 (catalogue – as synonym of Omorgus suberosus )

Huchet and Costa-Silva 2018: 559 (reinstated as a valid name).

Type material examined

Holotype: (♂, MNHN): First label [round, brown on one face, green on the other, unknown handwriting]: ‘7/47’. Second label [light brown, typeset]: ‘MUSEUM PARIS/ BRÉSIL /MINAS- GERAES/DE CASTELNAU 1847’. Third label [red, Pittino’s handwriting]: ‘ Omorgus /

( Omorgus ) ♂ / triestinae n. sp. / HOLOTYPUS / Det . R. Pittino 1987 ’. Fourth label [white label, typeset]: ‘MNHN/EC9748’. Type locality: BRAZIL: Minas Gerais .

Additional material examined [in addition to Huchet and Costa-Silva 2018) PARAGUAY: Concepción, Estancia Cororo , 10–20.iii.2001, Carlos Aguilar J. leg. (2 CVMD)

Diagnosis

Omorgus triestinae is most similar to O. suberosus , from which it can be distinguished as discussed above. See Huchet and Costa-Silva (2018) for more details.

Geographic distribution

Omorgus trietinae is restricted to central South America, where it is primarily found in the Cerrado and Pantanal biomes ( Huchet and Costa-Silva 2018). In Brazil it occurs in the following states: BA, GO, DF, MG, MS and SP ( Figure 12 ).

Figures

Figure 7. Holotype of Omorgus (Omorgus) triestinae Pittino, 1987. A, dorsal view; B, lateral view; C, aedeagus in dorsal view and D, holotype labels (Photos by A. Mantilleri, copyright MNHN).

Figure 12. Distribution of Omorgus triestinae in the Brazilian territory. Red circle with small black point inside refers to approximate type locality of O. triestinae (Brazil: Minas Gerais).