Onthophagus anewtoni Howden and Génier, 2004

Sánchez-Hernández, Gibrán & GóMez, Benigno, 2018, First Precise Locality Data for Onthophagus atriglabrus Howden and Gill and New State Record for Onthophagus anewtoni Howden and Génier (Coleoptera: Scarabaeidae: Scarabaeinae) in Mexico, The Coleopterists Bulletin 72 (4), pp. 873-876 : 875

Onthophagus anewtoni Howden and Génier, 2004

( Figs. 1b , 2 )

Known Distribution. Before our record reported herein, this species was only known from its type series localities in the states of Guerrero, Jalisco, and Oaxaca, Mexico (Howden and Génier 2004) .

Examined Material. Forty-two specimens (24 males, 18 females). MEXICO: CHIAPAS: Chiapa de Corzo municipality, 8.2 km NE of Chiapa de Corzo, deciduous forest, 16°43 ʹ 44.17 ʹʹ N, 92°55 ʹ 56.91 ʹʹ W, 875 m, 30.VI.2017, squid (216, 16♀), pig dung (16), G. Sánchez-Hernández, R. Dávila and A. Gómez cols.; idem except 28.VII.2017, squid (26), pig dung (16), fermented fungus (1♀), G. Sánchez- Hernández, R. Dávila and C. Valdez cols .

Comments. The presence of this species in the central region of Chiapas matches with other species of the subfamily, such as Phanaeus demon Castelnau, 1840 and Canthidium laetum Harold, 1867 , that are distributed along the Mexican Pacific coast and use the slopes of the Sierra Madre de Chiapas (Reserva de la Biósfera La Sepultura) to expand their distribution towards the Central Depression of Chiapas (Kohlmann and Sol´ıs 2006a; Lizardo et al. 2017). Our locality record extends the distribution range approximately 300 km east of the closest known locality, Tequesistlán, Oaxaca.

Figures

Fig. 1. Dorsal habitus of a) Onthophagus atriglabrus and b) Onthophagus anewtoni.

Fig. 2. Currently known distributions of Onthophagus atriglabrus and Onthophagus anewtoni. Previously known locality records for O. atriglabrus are from Howden and Gill (1987) and Kohlmann and Sol´ıs (2001); those for O. anewtoni are from Howden and Génier (2004).