Mechistocerus sp., copyright Aero Bird.

Belongs within: Molytinae.

The Mecistocerini are a group of weevils characterised by a pectoral canal extending onto the metasternum, with the sides of the canal marked by lamellae on the prosternum behind the fore coxae (Morimoto 1978). Praodes acalloides is an oval-bodied species with a minute scutellum and short metasternum with the pectoral canal reaching close to the end of the metasternum (Morimoto 1978).

Characters (from Morimoto 1978): Pectoral canal extending onto metasternum. Postcoxal part of prosternum with lamellae limiting the pectoral canal laterally. Fore coxae distant from middle coxae. Tarsal claws simple.

    |  i. s.: Aesychora notaticollisM78
    |         Isotocerus tenuipesM78
    |         SolenobathysM78
    |         Parendymia pilipesM78
    |         Sophronopterus Faust 1892M78
    |         DiatassaM78
    |--Mechistocerus Fauvel 1862LB20, M94
    |    |--M. corticeusM94
    |    |--M. denticulatus Pascoe 1875M86
    |    |--M. mastersi Pascoe 1870M86
    |    `--M. violatusLB20
    `--+--Praodes acalloidesLB20, M78
       `--Rhadinomerus Faust 1892LB20, M94
            `--R. levifronsM94

*Type species of generic name indicated


[LB20] Letsch, H., M. Balke, E. F. A. Toussaint & A. Riedel. 2020. Historical biogeography of the hyperdiverse hidden snout weevils (Coleoptera, Curculionidae, Cryptorhynchinae). Systematic Entomology 45: 312–326.

[M86] Masters, G. 1886. Catalogue of the described Coleoptera of Australia. Part V. Proceedings of the Linnean Society of New South Wales, series 2, 1 (3): 585–686.

[M94] May, B. M. 1994. An introduction to the immature stages of Australian Curculionoidea. In: Zimmerman, E. C. Australian Weevils (Coleoptera: Curculionoidea) vol. 2. Brentidae, Eurhynchidae, Apionidae and a chapter on immature stages by Brenda May pp. 365–728. CSIRO Australia.

[M78] Morimoto, K. 1978. On the genera of Oriental Cryptorhynchinae (Coleoptera: Curculionidae). Esakia 11: 121–143.

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