DOI: 10.3897/contrib.entomol.75.e148695

Authors: Vinícius da Costa-Silva

Abstract: A new case of hemidystrophy in Trogidae is here described and illustrated. The teratological specimen was identified as a male of Omorgus (Omorgus) alternans (MacLeay, 1827), being the first record of a teratological specimen of a trogid from Australia. While teratological cases provide limited taxonomic insights, they offer significant understanding of the environmental influences on insect development. The study emphasizes the importance of documenting such anomalies, contributing to the broader knowledge of developmental biology in insects, particularly within the under-researched Australian Trogidae

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DOI: 10.3897/contrib.entomol.74.e126799

Authors: Vinícius da Costa-Silva, Werner P. Strümpher, Maxwell V. L. Barclay, Fernando Z. Vaz-de-Mello

Abstract: An illustrated catalogue of South American species of the genus Omorgus Erichson is presented. Based on this study we propose the following taxonomic changes: Omorgus (Omorgus) capillaceus Scholtz, 1990, syn. nov. and Omorgus (O.) lucidus Pittino, 2010, syn. nov. are proposed as junior subjective synonyms of Omorgus (O.) fuliginosus (Robinson, 1941) and Omorgus (O.) ciliatus (Blanchard, 1847), respectively. Lastly, we designated a male neotype for the ubiquitous New World species Trox suberosus Fabricius, 1775 to replace the missing type.

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