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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Tenebrionoidea » Wedge-shaped Beetles (Ripiphoridae) » Ripiphorinae » Macrosiagon » Macrosiagon sayi
Photo#206955
Ivory and red beetle?? - Macrosiagon sayi - male
Copyright © 2008 Jason W.

Ivory and red beetle?? - Macrosiagon sayi - Male
Altamonte Springs, Seminole County, Florida, USA
July 27, 2008

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Ivory and red beetle?? - Macrosiagon sayi - male Ivory and red beetle?? - Macrosiagon sayi - male
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Contributed by Jason W. on 27 July, 2008 - 10:26pm
Last updated 7 December, 2013 - 12:49pm

Moved
Moved from Macrosiagon pectinata.
… john and jane balaban, 13 February, 2009 - 6:10pm login or register to post comments

Macrosiagon sayi (LeConte 1858)
After looking through and commenting on a few other pictures, I'd have to say that this is not M. pectinata but a male M. sayi. This species has (unusually for the genus) a pretty consistent coloration and differs from M. pectinata in having a more truncate, anterio-dorsally compressed vertex as well as a more robust and apically broadened first metatarsomere visible in the other photo (among other things).

If any of you bugguiders out there have the ability to pop a ripiphorid (any ripiphorid!) in 95% ethanol after photographing it, I'd be mighty interested! I'd love to have enough material to start doing some genetic work on these guys to better define the species boundaries...

cheers,
… Zack Falin, 13 February, 2009 - 4:10pm login or register to post comments

Looks to be
Ripiphoridae - Wedge-shaped Beetles, in the guide here
… john and jane balaban, 27 July, 2008 - 10:34pm login or register to post comments

 
Yep looks Macrosiagon pectina
Yep looks Macrosiagon pectinata to me. You guys are good. Don't you ever sleep though...
… Jason W., 27 July, 2008 - 10:40pm login or register to post comments

 
One of the beetle experts will hopefully confirm
your ID. We actually shut down right after our comment yesterday, and that was only 10:30 our time!
… john and jane balaban, 28 July, 2008 - 9:40am login or register to post comments

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