Primocerus
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| Primocerus | |
|---|---|
 | |
| Dorsal view of Primocerus neutrum | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Staphyliniformia |
| Family: | Hydrophilidae |
| Subfamily: | Acidocerinae |
| Genus: | Primocerus Girón & Short, 2019 |
| Diversity | |
| 9 species | |
Primocerus is a Neotropical genus of water scavenger beetle in the family Hydrophilidae represented by nine described species known from the Guiana Shield Region.[1]
Description
Small to medium-sized beetles (2.4–4.9 mm), smooth and shiny dorsally, orange-brown, reddish brown, or dark brown in coloration, with moderately long maxillary palps. The elytral punctation ranges from shallow to strongly marked, forming impressed serial striae; all the species bear a well defined sutural stria. A complete diagnosis was presented by Girón and Short.[1][2]