Duas novas espécies de Ptychoderes Schoenherr (Coleoptera, Anthribidae, Anthribinae, Ptychoderini)

Mermudes, José Ricardo M.; Napp, Dilma Solange

doi:10.1590/s0085-56262004000100004

Cited by 4 publications

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“…Quanto aos olhos, são proeminentes, finamente facetados e com a margem anterior nitidamente arredondada. No rostro foi verificada uma fóvea no meio das depressões ventrais; esta fóvea também é observada nas espécies de Ptychoderes Schoenherr (Mermudes & Napp 2006), mas neste gênero tem uma posição mais proximal ao sinus maxilar. A carena do protórax pode ser considerada sub-basal, se adotado o estudo de Holloway (1982).…”

Section: Stenocerus Frontalis Gyllenhal 1833unclassified

Morfologia comparada de três espécies de Stenocerus (Coleoptera, Anthribidae, Anthribinae)

Oliveira¹,

Mermudes²

2010

Rev. Bras. entomol.

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ABSTRACT. Comparative morphology of three species of Stenocerus (Coleoptera, Anthribidae, Anthribinae). Detailed studies of exoskeleton, mouthparts, wing venation, endosternites, retal plates and male and female terminalia, has been used to improve the systematics and evolutionary studies of the Neotropical anthribids. In this approach S. fulvitarsis (type-species of the genus), S. longulus and S. frontalis were carefully compared including descriptions and illustrations of characters never studied. Among the species examined, S. frontalis display a distinct mimetic pattern with flies of the family Sarcophagidae. The hypothesis that this species does not belong in the genus Stenocerus when compared with the type-species and S. longulus is discussed based mainly on position of the eyes, lack of lateral carinae, lamina of metendosternite longer than arms and median rods of ovipositor narrowed in the proximal region.KEYWORDS. Curculionoidea; Neotropical; Stenocerini; systematics.RESUMO. Morfologia comparada de três espécies de Stenocerus (Coleoptera, Anthribidae, Anthribinae). Estudos detalhados da morfologia do exoesqueleto, peças bucais, venação alar, endosternitos, placas esclerotizadas do intestino posterior e genitálias do macho e da fêmea, foram utilizados para aprimorar a sistemática e evolução de antríbideos neotropicais. Nesta abordagem, S. fulvitarsis (espécie-tipo do gênero), S. longulus e S. frontalis foram minuciosamente comparadas, incluindo as redescrições e ilustrações de caracteres nunca antes estudados. Dentre as espécies analisadas, S. frontalis apresenta um distinto padrão mimético com dípteros da família Sarcophagidae. A hipótese desta espécie não pertencer ao gênero se comparada com a espécie-tipo e S. longulus é discutida com base principalmente na posição dos olhos, ausência de carenas laterais, metendosternito com lâminas laterais mais curtas que os braços e hastes medianas do ovipositor estreitas na porção proximal.

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Section: Stenocerus Frontalis Gyllenhal 1833unclassified

Morfologia comparada de três espécies de Stenocerus (Coleoptera, Anthribidae, Anthribinae)

Oliveira¹,

Mermudes²

2010

Rev. Bras. entomol.

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“…Mermudes and Napp (2004) added two new species of Ptychoderes. Mermudes (2005) published a revision, cladistic analysis, and biogeography of the genera Hypselotropis and Tribotropis, proposing the latter as a synonym of the former.…”

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Description of Males of Ptychoderes brevis and Ptychoderes jekeli, with a Cladistical Reanalysis of Ptychoderes (Coleoptera: Anthribidae)

Mermudes¹,

Mattos

2010

Annals of the Entomological Society of America

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A recent study of the material housed in the Muséum National d'Histoire Naturelle (Paris, France) provided new information to describe and illustrate the males of Ptychoderes brevis Jordan and Ptychoderes jekeli Mermudes & Napp (Coleoptera; Anthribidae). These males were previously unknown, and their characters had never been studied by the cladistical method. A reanalysis of the genus was carried out, which included 50 characters and 24 taxa (seven as outgroup). The resulting single most-parsimonious cladogram corroborates previous hypotheses of the relationships among the genera of Ptychoderini and groups of Ptychoderes species. The male of P. brevis is characterized by; rostrum 1.5× longer than wide across base; sides not swollen between scrobe and eye; scrobe with a deep narrow extension and a deep distal pit; antennae elongated, reaching middle of elytra; ventrite I swollen, with moderately developed setiferous sex patch, closer to apical margin, clothed with dense yellow pilosity; and ventrite V with lateroapical projections not acuminate. The male of P. jekeli has rostrum slightly longer than wide across base; sides not swollen and the extension shallow; antennae exceeding apical elytron by segment XI; ventrite I with well developed setiferous sex patch, closer to apical margin and with olive green pilosity; and ventrite V strongly impressed, with lateroapical angles not projected and somewhat expanded. The relationship between P. brevis and P. jekeli was confirmed, and this group belongs to the P. crustatus+, corroborating the most basal lineage by the vestiture of the sides of prosternum with a vitta of the same color as the dorsal vestiture, and elytra transversely impressed behind the basal gibbosities.

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Sinopse do gênero Parexillis Jordan (Coleoptera, Anthribidae, Anthribinae)

Mermudes

2004

Rev. Bras. entomol.

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Duas novas espécies de Ptychoderes Schoenherr (Coleoptera, Anthribidae, Anthribinae, Ptychoderini)

Cited by 4 publications

References 1 publication

Morfologia comparada de três espécies de Stenocerus (Coleoptera, Anthribidae, Anthribinae)

Morfologia comparada de três espécies de Stenocerus (Coleoptera, Anthribidae, Anthribinae)

Description of Males of Ptychoderes brevis and Ptychoderes jekeli, with a Cladistical Reanalysis of Ptychoderes (Coleoptera: Anthribidae)

Sinopse do gênero Parexillis Jordan (Coleoptera, Anthribidae, Anthribinae)

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