smaller Hydrophilidae - Enochrus

Moved

Made a group page, and deleted the perplexus page.

… tom murray, 24 November, 2007 - 4:46pm

Moved

Moved from Enochrus.

… tom murray, 21 November, 2007 - 4:16pm

Moved

Moved from Water Scavenger Beetles.

… Tim Moyer, 10 June, 2007 - 6:46pm

Enochrus

This is a species of Enochrus--the palps are indeed longer than the antennae, but they are either broken off or not visible in these shots. Positive species ID is not possible from these two images.

… Andrew Short, 10 June, 2007 - 10:35am

Hi Andrew, good to see you've

Hi Andrew, good to see you've joined in on the fun of Bugguide! It's great to have a Hydrophilid expert and water beetles in general!

… Will Chatfield-Taylor, 21 November, 2007 - 11:34am

E. perplexus

a head shot was added to show light coloration in front of eyes. When combined with 5th abdominal sternum having little to no apical emargination, this one now appears to key to E. perplexus LeConte. Type photo available from MCZ.

Corrections welcome, and another new species for BugGuide :)

… Tim Moyer, 21 November, 2007 - 10:16am

Possibly

This species group of Enochrus is unfortunatley still not identifiable with certainty in these photos. While it is likely that the species is in fact E. fimbriatus (E. perplexus is no longer the valid name), it can only be distinguished from E. interruptus by a notch in the aedeagus, which requires dissection. Since the northeast containes both species, ID from these photos is not recommended. Head coloration can be valuable for ID, but is both sexually dimorphic and varies by region in this genus, which can cause added confusion.

… Andrew Short, 24 November, 2007 - 2:07pm

Thanks Andrew

thanks for the correction, Andrew. The Downie and Arnett key didn't mention the head coloration being dimorphic. To try and "unclutter" the genus pages, for this type of situation we usually create a group page that encompasses both species.

… Tim Moyer, 24 November, 2007 - 3:42pm

Thanks Andrew,

I'll take another look at the palps when I get a chance. And given the genus, perhaps from Downie and Arnett I can figure out what other characteristics to show. Thanks taking a look,
Tim

… Tim Moyer, 10 June, 2007 - 6:45pm