Quadriops Explained

Quadriops is a Neotropical genus of water scavenger beetle in the family Hydrophilidae represented by six described species.^[1]

Taxonomy

The genus Quadriops was described for the first time by Michael Hansen in 1999.^[2]

It belongs in the subfamily Acidocerinae. After a revision of the genus, it now contains six described species from Brazil (Amazonas), Costa Rica, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, and Venezuela.^[3]

Description

Small to tiny beetles (1.6–2.6 mm), orange brown to dark brown in coloration, with eyes fully divided in dorsal and ventral faces; short maxillary palps. The elytra are laterally explanate and the elytral punctation may present well defined elytral striae. A complete diagnosis was presented by Girón and Short.

Habitat

Quadriops is the only genus of Neotropical acidocerines known only from terrestrial habitats, including rotten fruits, sap flows on freshly cut trees, and in the refuse piles of leafcutter ants.

Species

1. Quadriops acroreius Girón and Short, 2017
2. Quadriops clusia Girón and Short, 2017
3. Quadriops dentatus Hansen, 1999
4. Quadriops depressus Hansen, 1999
5. Quadriops reticulatus Hansen, 1999
6. Quadriops similaris Hansen, 1999

Notes and References

1. Girón. Jennifer C.. Short. Andrew Edward Z.. 2021-06-18. The Acidocerinae (Coleoptera, Hydrophilidae): taxonomy, classification, and catalog of species. ZooKeys. 1045. 1–236. 10.3897/zookeys.1045.63810. 1313-2970. 8233300. 34228772. free.
2. Hansen. Michael. 1999-01-01. Fifteen new genera of Hydrophilidae (Coleoptera), with remarks on the generic classification of the family. Insect Systematics & Evolution. en. 30. 2. 121–172. 10.1163/187631200X00228. 1876-312X.
3. Girón. Jennifer C.. Short. Andrew Edward Z.. 2017-03-10. Revision of the Neotropical water scavenger beetle genus Quadriops Hansen, 1999 (Coleoptera, Hydrophilidae, Acidocerinae). ZooKeys. en. 705. 115–141. 10.3897/zookeys.705.19815. 1313-2970. 5674056. 29118615. free.