Figure 1. 

Teratological specimen of Omorgus (Omorgus) alternans (MacLeay, 1827) in: A. Dorsal and B. Ventral view; C. Details of head, pronotum, and base of elytra showing the hemidystrophy; D. Labels. Photos: Andrew Smith (CMNC).

 
  Part of: da Costa-Silva V (2025) The first teratological case for the Australian Omorgus Erichson, 1847 species (Coleoptera, Scarabaeoidea, Trogidae). Contributions to Entomology 75(1): 235-238. https://doi.org/10.3897/contrib.entomol.75.e148695