Quadriops

Quadriops
Dorsal view of Quadriops clusia
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Staphyliniformia
Family:	Hydrophilidae
Subfamily:	Acidocerinae
Genus:	Quadriops García, 2001

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

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.^[1][3]

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.^[1]

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.^[1][3]

These six species belong to the genus Quadriops:^[4]

1. Quadriops acroreius Girón and Short, 2017 (Suriname, French Guiana)^[3]
2. Quadriops clusia Girón and Short, 2017 (Guyana, Suriname, Brazil)^[3]
3. Quadriops dentatus Hansen, 1999 (Venezuela, Suriname, French Guiana)^[2]
4. Quadriops depressus Hansen, 1999 (Venezuela, Ecuador, Peru)^[2]
5. Quadriops reticulatus Hansen, 1999 (Costa Rica, Panama)^[2]
6. Quadriops similaris Hansen, 1999 (Venezuela, Guyana, Suriname, French Guiana, Brazil)^[2]