Aquatic Insect #4 ID?

Taxon

Moderator
Staff member
#1


This aquatic insect was collected in a kicknet sample five summers ago on the South Fork Snoqualmie River. It is 2.5 mm in body length. Can you identify it by any of the following:

Order common name:
Order taxonomic name:
Family common name:
Family taxonomic name:
Genus taxonomic name:
Species taxonomic name:
Lifestage:
 

Taxon

Moderator
Staff member
#5
Good job, Jay. Incidentally, its body length is 2.5 mm, which may lead you the correct genus and species.

IDENTIFICATIONS

Order common name: Beetle (jwg)
Order taxonomic name: Coleoptera (jwg)
Family common name: Predaceous Diving Beetle (jwg)
Family taxonomic name: Dytiscidae (jwg)
Genus taxonomic name:
Species taxonomic name:
Lifestage: Adult (jwg)
 

Taxon

Moderator
Staff member
#9
Heterosternuta

Jay
No, but try comparing the following BugGuide taxonomy:

Phylum Arthropoda - Arthropods​
Class Insecta - Insects​
Order Coleoptera - Beetles​
Suborder Adephaga - Ground and Water Beetles​
Family Dytiscidae - Predaceous Diving Beetles​
Subfamily Hydroporinae
Tribe Hydroporini
Genus Boreonectes
Genus Coelambus
Genus Haedeoporus
Genus Hydrocolus
Genus Hydroporus
Genus Hygrotus
Genus Lioporeus
Genus Nebrioporus
Genus Neoporus
Genus Oreodytes
Genus Stictotarsus
 

jwg

Active Member
#11
Revision:

I just found the exact image copyright Roger Rohrbeck!

Oreodytes - Oreodytes obesus
S. Fork Snoqualmie River, King County, Washington, USA
September 20, 2007
Size: ~2 mm.
 

Taxon

Moderator
Staff member
#12
Revision:

I just found the exact image copyright Roger Rohrbeck!

Oreodytes - Oreodytes obesus
S. Fork Snoqualmie River, King County, Washington, USA
September 20, 2007
Size: ~2 mm.
Hi Jay,

Yes you did, but perhaps more importantly, you learned about the existence of a resource on my website, which can greatly simplify future searches. ;)

IDENTIFICATIONS

Order common name: Beetle (jwg)
Order taxonomic name: Coleoptera (jwg)
Family common name: Predaceous Diving Beetle (jwg)
Family taxonomic name: Dytiscidae (jwg)
Genus taxonomic name: Oreodytes (jwg)
Species taxonomic name: obesus (jwg)
Lifestage: Adult (jwg)