Chrysina karenrobackerae Robacker and Hawks and C. queretaroensis Robacker and Hawks (Cole¬optera: Scarabaeidae: Rutelinae) are described as new species from the northeastern Mexican states of Nuevo León and Querétaro, respectively, based on morphometric comparisons of adults and genitalia with those of C. adelaida (Hope, 1841) and C. occidentalis Robacker and Hawks, 2022. Both new species were previ¬ously regarded as C. adelaida and remain in the adelaida group (sensu Hawks 2001). Te primary diagnostic characters that defne these species are genitalic, including male-capsule enantiomorphy, a character not previously used in Chrysina Kirby identifcation.
Robacker et al. (Fri,) studied this question.