Nomenclatural changes and two new species in the leafhopper genus Usanus DeLong (Hemiptera: Cicadellidae) with notes on conservation status Author Pinedo-Escatel, J. Adilson Illinois Natural History Survey, Prairie Research Institute, University of Illinois, 1816 S. Oak St., Champaign, IL 61820, US. Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, km 15.5 carretera Guadalajara-Nogales, Las Agujas, Zapopan, C. P. 45110, Apdo. Postal 139, Jalisco, México Author Dietrich, Christopher H. 0000-0003-4005-4305 Illinois Natural History Survey, Prairie Research Institute, University of Illinois, 1816 S. Oak St., Champaign, IL 61820, US. Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, km 15.5 carretera Guadalajara-Nogales, Las Agujas, Zapopan, C. P. 45110, Apdo. Postal 139, Jalisco, México & chdietri @ illinois. edu; https: // orcid. org / 0000 - 0003 - 4005 - 4305 chdietri@illinois.edu text Zootaxa 2020 2020-08-07 4822 4 567 576 journal article 8788 10.11646/zootaxa.4822.4.6 23fccc1a-01d7-48be-a545-418f1a8271fc 1175-5326 4401869 0A9B6A82-EB48-4DB8-951B-53B8319F23B4 Usanus stonei DeLong, 1947 Usanus stonei DeLong, 1947: 110 Devolana hemicycla DeLong, 1967: 23 , comb. et syn. nov. Type material examined. HOLOTYPE ♂ : labeled as “ Devolana hemicycla ”, MEXICO : Guerrero , Iguala , X–25–1941 / DeLong , Good , Caldwell and Plummer Colls. / E–103 / D. M. DeLong Collection / ( OSUC 0209432 ); HOLOTYPE ♂ : labeled as “ Usanus stonei ”, MEXICO : Guerrero , Iguala, X–22–1941 / D. M. DeLong Collection , DeLong, Good, Caldwell and Plummer Colls. / ( OSUC 169297 ); PARATYPE ♂ : labeled as “ Usanus stonei ”, MEXICO : Guerrero , Iguala, X–25–1941 / D. M. DeLong Collection / D. M. DeLong Coll. / ( OSUC 356667 ).