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Haliplidae? - Berosus - male

Haliplidae? - Berosus - Male
Nashua, Hillsborough County, New Hampshire, USA
August 28, 2005
Size: 5 mm
Came to UV light. I've seen this species often at my lights.

Images of this individual: tag all
Haliplidae? - Berosus - male Berosus sp? - Berosus

Berosus male
Yes, this is a species of Berosus, and based on the protarsi, it is a male. Most likely candidates are B. sayi and B. infuscatus, but the genus is very difficult to ID, even with specimen in hand.

Thanks Andrew
I created a guide page and moved these images.

looks like it
If you still have it look on the underside. At the base of the rear legs there will be BIG plates if its Haliplidae.

Not so sure.
I think this is probably a water scavenger beetle in the family Hydrophilidae, maybe a species of Berosus, several of which superficially resemble haliplids.

Maybe so. It resembles this one:

Thanks Andy.
I didn't keep it, but next one that visits my moth sheet will get its underside examined.