Moisturizers ( lat. Hydrochidae ) - a family of insects of the order Coleoptera , including one genus Hydrochus with several species.
| Moisture lovers | ||||||||||||||||||
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 Hydrochus angustatus | ||||||||||||||||||
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| Hydrochidae Thomson, 1859 | ||||||||||||||||||
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Content
Description
A family of small, up to 3 mm in length, black or bronze beetles. Mostly found among aquatic plants. Three-segment antennas . Maxillary palps elongated.
Paleontology
The oldest known member of the family is Cretohelophorus cupedoides , found in the early Cretaceous of Mongolia [1] .
Systematics
This family was previously considered as a subfamily, which is part of the water brood ( Hydraenidae ), but differences were found in the structure of the body.
List of Species
- Hydrochus aequalis
- Hydrochus aljibensis
- Hydrochus angusi
- Hydrochus angustatus
- Hydrochus bicolor
- Hydrochus brevis
- Hydrochus brianbrowni
- Hydrochus chubu
- Hydrochus crenatus
- Hydrochus elongatus
- Hydrochus flavipennis
- Hydrochus grandicollis
- Hydrochus ibericus
- Hydrochus ignicollis
- Hydrochus interruptus
- Hydrochus japonicus
- Hydrochus kirgisicus
- Hydrochus lacustris
- Hydrochus laferi
- Hydrochus megaphallus
- Hydrochus nitidicollis
- Hydrochus nodulifer
- Hydrochus nooreinus
- Hydrochus octocarinatus
- Hydrochus opacus
- Hydrochus rhytipterus
- Hydrochus rishi
- Hydrochus roberti
- Hydrochus smaragdineus
- Hydrochus tariqi
Notes
- β AG Ponomarenko, AA Prokin. Review of paleontological data on the evolution of aquatic beetles (Coleoptera ) // Paleontological Journal. - 2015-12-01. - Vol. 49 , iss. 13 . - P. 1383-1412 . - ISSN 1555-6174 . - DOI : 10.1134 / S0031030115130080 .