Symmela seideli is a species of beetle of the family Scarabaeidae.Global Biodiversity Information Facility It is found in Brazil.

Description Adults reach a length of about . The head is dull-iridescent, with erect, sparse setae. The head and pronotum have a simple iridescent shine. The pronotum is red-brown, while the elytra are black in the posterior half, and red in the anterior half.

Etymology The species is dedicated to Matthias Seidel, curator of the Coleoptera collection of the NHMW.

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