Morphology of immature stages of Paraegidium costalimai (Coleoptera: Scarabaeidae: Orphninae) and remarks on egg-busters in Scarabaeidae first‑instar larvae




Aegidiini, Lamellicornia, Pleurosticti, Pupa, White grub


Studies about the immature stages of Orphninae (Coleoptera: Scarabaeidae) species are scarce. The subfamily includes 214 species, but only 5 have the immature stages described: Chaetonyx robustus liguricus Mariani, 1946, Hybalus benoiti Tournier, 1864, H. rotroui Petrovitz, 1964 and Triodontus nitidulus (Guérin, 1844) from Old World; and Aegidium cribratum Bates, 1887 from the New World. The Neotropical genus Paraegidium Vulcano, Pereira & Martinez, 1966 encompass five species, mainly recorded from Brazil. Herein, the immature stages of P. costalimai Vulcano, Pereira & Martinez, 1966 are described and illustrated, along with remarks on the presence of egg-buster in Scarabaeidae first-instar larvae. A key to the third-instar larvae of known Orphninae and a comparative study of chaetotaxy are also provided.


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Author Biographies

Rafael Clayton de Jesus e Sousa, Universidade de São Paulo (USP), Museu de Zoologia (MZUSP) - São Paulo, SP, Brasil.

Avenida Nazaré, 481, Ipiranga, CEP 04263‑000, São Paulo, SP, Brasil.

Juares Fuhrmann, Universidade de São Paulo (USP), Museu de Zoologia (MZUSP) - São Paulo, SP, Brasil.

Avenida Nazaré, 481, Ipiranga, CEP 04263‑000, São Paulo, SP, Brasil.


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How to Cite

Sousa, R. C. de J. e, & Fuhrmann, J. (2020). Morphology of immature stages of Paraegidium costalimai (Coleoptera: Scarabaeidae: Orphninae) and remarks on egg-busters in Scarabaeidae first‑instar larvae. Papéis Avulsos De Zoologia, 60(special), e202060(s.i.).13.



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