What question did this study set out to answer?

The research aims to describe two new species of Chrysina based on morphometric traits and genitalic structures.

February 28, 2026

Two new cryptic species of Chrysina Kirby (Coleoptera: Scarabaeidae: Rutelinae) from the northern Sierra Madre Oriental of Mexico

Key Points

The research aims to describe two new species of Chrysina based on morphometric traits and genitalic structures.
Morphometric comparisons of adult and genital structures
Taxonomic classification based on diagnostic characters
Comparison with previously identified species C. adelaida and C. occidentalis
C. karenrobackerae and C. queretaroensis were identified as new species
Primary diagnostic features include male-capsule enantiomorphy
Both new species were formerly classified as C. adelaida

Abstract

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.

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Cite This Study

Robacker et al. (Fri,) studied this question.

synapsesocial.com/papers/69a288060a974eb0d3c03fc3 https://doi.org/https://doi.org/10.64338/im.1174.gdmk1

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