Nambour canegrub

Antitrogus rugulosus

Body length 20-25mm, yellowish bronw to reddish-brown; antennal club of males 5-10 lamellate or females 6-10 lamellate, lamella of antennal lamella 5 0.25-0.4 as long as remaining lamella of club; pronotum 1.55 x as wide as long, anterior angles obtuse, posterior angles almost square, lateral margins uniformly curved, anterior margin defined by groove only on oputer fifth of margin, posterior margin not defined but with line of stouter setae; frons and pronotum with short setae contained within punctures.

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