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<p>The genus <i>Hypselotropis</i>, belonging to the Anthribidae family (fungus weevils) and the Ptychoderini tribe, comprises 19 species predominantly distributed in the Neotropical region. The genus exhibits high diversity and structural modifications in males that suggest sexual selection. This study aimed to describe two new species of <i>Hypselotropis</i> collected in the Brazilian Amazon and to document a significant sexual character for the family. <i>Hypselotropis yanomami&#xa0;</i>sp. n. is described from Serra da Mocidade (Roraima State), a region in the northern Brazilian Amazon with limited accessibility and few previous scientific studies. <i>Hypselotropis mura&#xa0;</i>sp. n. is described from Careiro Castanho, a municipality also located in the Amazon biome (Amazonas State). An updated taxonomic key to all known <i>Hypselotropis</i> species is provided, along with new data on the distribution of the genus. Additionally, setiferous sex patches on abdominal ventrites I and II of males of <i>Hypselotropis yanomami&#xa0;</i>sp. n. is reported, a sexually dimorphic characteristic recorded for the first time in the family Anthribidae.</p>

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Two new Hypselotropis (Coleoptera: Anthribidae, Anthribinae, Ptychoderini) species from the Amazon Biome and first report for the family of two setiferous sex patches on male abdominal ventrites

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  • 发表日期：

    2026年7月8日

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  • Poliana de Mesquita Vilhena,
  • José Ricardo M. Mermudes

摘要

The genus Hypselotropis, belonging to the Anthribidae family (fungus weevils) and the Ptychoderini tribe, comprises 19 species predominantly distributed in the Neotropical region. The genus exhibits high diversity and structural modifications in males that suggest sexual selection. This study aimed to describe two new species of Hypselotropis collected in the Brazilian Amazon and to document a significant sexual character for the family. Hypselotropis yanomami sp. n. is described from Serra da Mocidade (Roraima State), a region in the northern Brazilian Amazon with limited accessibility and few previous scientific studies. Hypselotropis mura sp. n. is described from Careiro Castanho, a municipality also located in the Amazon biome (Amazonas State). An updated taxonomic key to all known Hypselotropis species is provided, along with new data on the distribution of the genus. Additionally, setiferous sex patches on abdominal ventrites I and II of males of Hypselotropis yanomami sp. n. is reported, a sexually dimorphic characteristic recorded for the first time in the family Anthribidae.