Onthophagus villanuevai Delgado & Deloya 1990

- Onthophagus villanuevai Delgado & Deloya, 1990 Paratype: 1 [unknown sex]. MEXICO: Guerrero, Chilpancingo, Palo Blanco, 1140 m, 30–31/VIII/1989. Col. L. Delgado y J. Blackaller, NTP-80; Bosque pino- encino. Conservation status: Complete, well-preserved. Paratype: 1 [unknown sex]. MEXICO: Guerrero, Mochitlán, Acahuizotla, 650 m, VI/1986. Col. L. Delgado C., NTP-80; bosque trópical med. subperenifolio. Conservation status: Complete, well-preserved. Paratype: 1 [unknown sex]. Ídem. VIII/1 986. Conservation status: Complete, well-preserved. Paratypes: 2 [unknown sex]. Ídem. X/1986. Conservation status: Complete, well-preserved. Paratypes: 3 [unknown sex]. Ídem. 30/IX/1986. Conservation status: Complete, well-preserved. Paratypes: 2 [unknown sex]. Ídem. 29/VIII/1989. Col. L. Delgado y J. Blackaller; fermento de guayaba colocado a 2 m de altura; 1:00–2:00 pm. Conservation status: Complete, well-preserved.Published as part of Pérez-Hernández, Cisteil Xinum, 2017, An annotated catalogue of the Coleoptera types deposited in the National Insect Collection (CNIN) of the National Autonomous University of Mexico, pp. 1-128 in Zootaxa 4288 (1) on pages 104-105, DOI: 10.11646/zootaxa.4288.1.1, http://zenodo.org/record/101041