Crucisternum

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Crucisternum
Crucisternum.jpg
Dorsal view of Crucisternum ouboteri
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Infraorder: Staphyliniformia
Family: Hydrophilidae
Subfamily: Acidocerinae
Genus: Crucisternum
Girón & Short, 2018
Diversity
7 species

Crucisternum is a Neotropical genus of water scavenger beetles in the family Hydrophilidae represented by seven described species known from the Guiana Shield Region. [1]

Contents

Taxonomy

The genus Crucisternum was described for the first time by Girón & Short in 2018. [2]

It belongs in the subfamily Acidocerinae and contains seven described species from Brazil (Minas Gerais, Pará), French Guiana, Guyana, Suriname, and Venezuela. [1] [2]

Description

Small beetles (2.0–2.5 mm), smooth and shiny dorsally, orange-brown to dark brown in coloration, with long maxillary palps. The most salient characteristic of the genus is the presence of a longitudinal carina on the prosternum, which is accompanied by a cruciform elevation on the mesoventrite. A complete diagnosis was presented by Girón and Short. [1] [2]

Habitat

According to Girón and Short "all species of the genus are associated with forested streams, usually along margins that contain ample detritus". [1]

Species

  1. Crucisternum escalera Girón and Short, 2018
  2. Crucisternum ouboteri Girón and Short, 2018
  3. Crucisternum queneyi Girón and Short, 2018
  4. Crucisternum sinuatus Girón and Short, 2018
  5. Crucisternum toboganensis Girón and Short, 2018
  6. Crucisternum vanessae Girón and Short, 2018
  7. Crucisternum xingu Girón and Short, 2018

References

  1. 1 2 3 4 Girón, Jennifer C.; Short, Andrew Edward Z. (2021-06-18). "The Acidocerinae (Coleoptera, Hydrophilidae): taxonomy, classification, and catalog of species". ZooKeys (1045): 1–236. Bibcode:2021ZooK.1045....1G. doi: 10.3897/zookeys.1045.63810 . ISSN   1313-2970. PMC   8233300 . PMID   34228772.
  2. 1 2 3 Girón, Jennifer C.; Short, Andrew Edward Z. (2018-06-19). "Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae)". ZooKeys (768): 113–158. Bibcode:2018ZooK..768..113G. doi: 10.3897/zookeys.768.24423 . ISSN   1313-2970. PMC   6019434 . PMID   29955215.
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