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Photo#128383
Cantharid - Malthodes - male

Cantharid - Malthodes - Male
Dixie Plantation, Charleston County, South Carolina, USA
July 15, 2007
Very similar to the other short-winged cantharid I posted but the coloration of the head is different.

you still have it?
if so, please post some shots of the terminal segments of abdomen (ventrally and laterally) - they may later allow for species ID!

This one and are in my eyes similar enough to represent male and female of one species.

 
interesting
I wouldn't be surprised if they were the same species. Don't the males have these projections on their antennal segments? The specimens are dried now and pinned but I'll see what I can do.

 
sexual differences
In Malthodes sp., males have the head wider, the eyes bigger, the antennae longer than females, and the last abdominal segments strongly modified.
I haven´t seen yet a male with such projections.

 
Tytthonyx?
American Beetles key says antennae of Malthodes are filiform to subserrate, antennae of Tytthonyx serrate, flabellate, or pectinate (1). These look a little pectinate to me, so could this be Tytthonyx? (How does one tell subserrate from pectinate?)

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