Mycotretus apicalis, Lacordaire, 1842

Pecci-Maddalena, Italo Salvatore De Castro, Lopes-Andrade, Cristiano & Skelley, Paul, 2020, The metendosternite and penile flagellum: two unexplored character systems of pleasing fungus beetles (Coleoptera: Erotylidae), Zoological Journal of the Linnean Society 193, pp. 953-972 : 969

4. Mycotretus apicalis + M. melanophthalmus

( Fig. 1B, L ; character 13:1 and Fig. 5B, C ) ‘flagellum head elongate, angulated anteriorly, and fusing’. The body shape slightly rounded and the penile flagellum with a triangular flagellum head suggest that these species are probably closely related. Mycotretus apicalis and M. melanophthalmus also resemble Mycotretus peruvianus (not included here) in the nearly rounded, convex body and the nearly circular plate-like mentum. According to Skelley & Powell (2018), these features are present in Mycomystes Gorham and its relationship with those Mycotretus must be checked in future works.

Figures

Figure 1. Species of Mycotretus examined. A, M. cribratus; B, M. apicalis; C, M. quadrioculatus; D, M. pygmaeus; E, M. coccineus; F, M. fuscitarsis; G, M. trifasciatus; H, M. scitulus; I, M. minutus; J, M. fallax; K, M. cordiger; L, M. melanophthalmus; M, M. lesueuri; N, M. jocosus; O, M. marginicollis; P, M. ornatus; Q, M. floriger; R, M. sobrinus; S, M. rhodosomus; T, M. reticulatus; U, M. flavomarginatus. Scale bar: A–U = 1.5 mm.

Figure 5. A–L, characters and character states of the penile flagellum in Erotylinae (Tritomini) (see text for a definition of each character statement). A, Tritoma bipustulata; B, Mycotretus apicalis; C, Mycotretus melanophthalmus; D, Mycotretus pygmaeus; E, Mycotretus marginicollis; F, Triplax brasiliensis; G, Mycotretus trifasciatus; H, Mycotretus lesueuri; I, Mycotretus flavomarginatus; J, Mycotretus reticulatus; K, Mycotretus fallax; L, Mycotretus trifasciatus. Scale bars: A, L = 0.2 mm; B–K = 0.1 mm.