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Orussidae, lateral - Orussus minutus

Orussidae, lateral - Orussus minutus
Ames - Tullamore, Story County, Iowa, USA
June 26, 2008
Size: 6+ mm
Malaise trap June 20-26, 2008, narrow wooded valley near limestone seeps and creek.
Borror & Delong say 8-14 mm long but this is smaller.

Images of this individual: tag all
Orussidae, lateral - Orussus minutus Orussidae, dorsal - Orussus minutus Orussidae, head lateral - Orussus minutus Orussidae, head front - Orussus minutus

Thanks to MJ for letting me use the data from this specimen in my publication on Orussus minutus, which is available here (1).

Moved tentatively per Dr.Smith's comment

Orussus sp.
Chances are it is Orussus minutus Middlekauff, the smallest of the three eastern species. There is considerable variation in size within each species, so size is not a good criterion for species separation.

Very interesting.
Will have to check the catalog to see if there are other genera, and/or whether there is sexual dimorphism.....

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