Pleasing fungus beetle Megalodacne heros, photographed by Stephen Cresswell.

Belongs within: Cucujoidea.

The Erotylinae are a clade of beetles associated with fungi, usually macroscopic Basidiomycetes (Leschen 2003).

Characters (from Leschen 2003): Subapical serrations of mandible absent; lacidian usually with two lacinial spines; lateral pockets present on mentum; medial carina of mentum usually present; width of apical labial palpomere greater than or equal to length, palpomere often securiform; width of ligular membrane equal to prementum; transverse gular line usually present, usually as shallow or beadlike groove; antennal insertions usually hidden in dorsal view; supraocular line usually present to level beyond eye; transverse line absent on vertex of head; two stridulatory files present or absent on vertex of head; pronotal shape variable, not constricted at base; anterior angles of pronotum well developed; anterior margin of prosternum smooth; pronotal pits absent; glandular ducts usually present in lateral carina of pronotum, unitubulate; prosternal glandular ducts present or absent; procoxal cavity internally open, externally closed by prosternum and hypomeron; edge of hypomeron smooth; mesoventral glandular ducts usually present; mesepisternal fovea absent; mesometaventral articulation usually dicondylic; width of mesoventral process usually greater than or equal to mesocoxa; submesocoxal lines present or absent; metaventral pores present or absent; metepisternal ctenidium absent; abdominal ventrites 1 and 2 connate; abdominal cuticular glandular ducts present or absent at disk and margin; abdominal calli present or absent; metafurcal lamina usually present with well developed median stalk; spermatheca rounded or elongate; apical pit of spermatheca usually absent; acessory gland of spermatheca usually present; length of tarsomere 1 usually equal to tarsomere 2; tarsomere 4 usually reduced and hidden in ventral view; tarsal shelf of tarsomere 5 present; empodium usually with two setae; elytral punctation striate without scutellary striole; elytra usually narrowly explanate; radial cell present; wedge cell absent.

    |--Dacnini L03
    |    |--Cryptodacne L03
    |    |--Dacne quadrimaculata L03
    |    `--Hoplepiscapha Lea 1922 L03
    |         `--H. longicornis L03
    `--+--Tritomini L03
       |    |--Tritoma atriventris L03
       |    `--Lybanodes L03
       |         |--L. bicolor L03
       |         |--L. castaneus L03
       |         |--L. lescheni L03
       |         |--L. rostratus L03
       |         |--L. sasquatch L03
       |         |--L. similis L03
       |         `--L. stigmatus L03
       `--+--Megalodacne [Megalodacnini] L03
          |    |--M. fasciatus L03
          |    `--M. heros L03
          `--+--Encaustini L03
             |    |--Aulachochilus L03
             |    `--Encaustes AY04
             `--Erotylini L03
                  |--Thallis polita L03
                  |--Erotylus Fabricius 1775 L03
                  |--Brachysphaenus L03
                  |--Coccimorphus L03
                  `--Homoeotelus L03

*Type species of generic name indicated


[AY04] Austin, A. D., D. K. Yeates, G. Cassis, M. J. Fletcher, J. La Salle, J. F. Lawrence, P. B. McQuillan, L. A. Mound, D. J. Bickel, P. J. Gullan, D. F. Hales & G. S. Taylor. 2004. Insects 'Down Under' - diversity, endemism and evolution of the Australian insect fauna: examples from select orders. Australian Journal of Entomology 43 (3): 216-234.

[L03] Leschen, R. A. B. 2003. Erotylidae (Insecta: Coleoptera: Cucujoidea): Phylogeny and review. Fauna of New Zealand 47: 1-108.

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