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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Staphyliniformia » Hydrophiloidea » Helophoridae » Helophorus » subgenus Rhopalohelophorus (Helophorus subgenus Rhopalohelophorus) » Helophorus lineatus
Photo#759528
Water Scavenger Beetle - Helophorus lineatus - male
Copyright © 2013 tom murray

Water Scavenger Beetle - Helophorus lineatus - Male
Harvard, Worcester County, Massachusetts, USA
April 11, 2013
Size: 3.5mm

Images of this individual: tag all
Water Scavenger Beetle - Helophorus lineatus - male Water Scavenger Beetle - Helophorus lineatus - male
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Contributed by tom murray on 11 April, 2013 - 10:57pm
Last updated 6 May, 2014 - 10:32pm

Helophorus lineatus Say, male
Moved from Helophorus orientalis. Revised ID, tentative.

I recant my previous ID, as I cannot reconcile that this is a male H. orientalis. The specimen has gunk in the lateral pronotal grooves making it difficult to see the shape. Your photos seem to show them at least slightly widened, if not more. Otherwise, this matches well with your other specimens which are clearly H. lineatus.
… Brad Barnd, 6 May, 2014 - 10:32pm login or register to post comments

Helophorus orientalis Motschulsky, male
Moved from Helophorus. ID'd from specimen, now a photo-voucher. Thanks Tom.

An unusual specimen, in that H. orientalis is mostly parthenogenic in North America. Smetana (1) says all males seen by him were from the western USA and only one has been recorded from the east (New York in 1945). The aedeagus of the specimen is as illustrated by Smetana.
… Brad Barnd, 29 April, 2014 - 6:44pm login or register to post comments

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