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Photo#414561
tiny brown & whitish Weevil with plump snout - Stenopelmus rufinasus

tiny brown & whitish Weevil with plump snout - Stenopelmus rufinasus
Madrona Marsh Preserve, Torrance, Los Angeles County, California, USA
June 18, 2010
Size: ~ 2 mm
The third in this trilogy of tiny beetles found on the Preserve this day.
This small weevil didn't attempt to fly until it had reached the highest point it could climb too; a behavior shared with several other insects.

No barking this time, beyond remarking that it shows overall habitus similarity with genus Hypera ...

Any pointers are much appreciated !

Images of this individual: tag all
tiny brown & whitish Weevil with plump snout - Stenopelmus rufinasus tiny brown & whitish Weevil with plump snout - Stenopelmus rufinasus tiny brown & whitish Weevil with plump snout - Stenopelmus rufinasus

ID
Correct Stenopelmus rufinasus Gyllenhal

 
Thanks for the confirmation, Dr. OBrien !
Much appreciated !

thanks much for the push, Emile...
a regular pushing match indeed :)
i'll ask about the title of that Schönherr's work -- can't tell you offhand, and none of my few handy sources cites it

Moved from ID Request.

 
got it -- OCR screwup: should be 'Curc.' [not 'Cure.']

 
Thanks =V=, you have multifaceted talents !

fun. no idea yet. must be something periaquatic, no?
rather narrow bagoine-style tarsi suggest that

 
You're so good, =V= !
This lil' weevil was indeed found on the edge of a vernal pool !

I researched Bagous and its close relatives, but could not find any with such whitish markings.
Then I expanded to other related periaquatic genera and found the perfect match: Stenopelmus rufinasus.
This weevil is commonly known as Azolla Weevil or Water Fern Weevil, which makes a lot of sense as the vernal pool had a lot of Water Fern (Azolla filiculoides) !

Interesting is that both the Water Fern and the Weevil are native to North America.
The Water Fern has been spread to other countries, and the Azolla Weevil has been introduced in those countries to keep its spread in check !

While doing the research, I was amazed at the remarkable dichotomy between the stability of the generic and species nomenclature versus the instability of the higher taxonomic nomenclature of these weevils.

In closing, one more enigma I'd love to resolve:
The original 1836 description of Stenopelmus rufinasus by Gyllenhal is cited as being published in "Sch. Cure".
Would you know what this abbreviation stands for ?
I also found non-related citations with "Schönherr Cure. Disp. Method.", but I'm not sure if this refers to the same publication.

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