Onthophagus...??? - Onthophagus orpheus

Moved

Moved from Beetles.

… v belov, 23 February, 2012 - 3:21pm

orpheus

Confirmed by Paul Skelley, FSCA.

… Blaine Mathison, 23 February, 2012 - 11:13am

Well im not going to complain

… James E. Garrison, 23 February, 2012 - 3:14pm

Four more today...no "bicolor

Four more today...no "bicoloredness" at all.... I am going to send them down with Bruce to FSCA next week...I'm Thinking Onthophagus garrisoni if not that Onthophagus concinnus garrisoni either one will work for me...lol

… James E. Garrison, 15 February, 2012 - 7:47pm

concinnus vs. medorensis

Apparently, according to Howden and Cartwright (1963) there are times when the color of concinnus is similar to medorensis. The best feature to separate them apparently is the presence (concinnus) of small tubercles on the elytral intervals. Have you seen these under the microscope (I cannot tell on the image)?

While H&C didn't indicate medorensis in FL, it is in coastal LA so it's presence in norther FL is a distinct possibility (I've seen something similar with a clicker, Glyphonyx mimeticus). Keep in mind, the distributions in H&C are 48 years old!

… Blaine Mathison, 11 February, 2012 - 6:43am

concinnus vs. medorensis

Woodruff (1) didn't list medorensis from FL either ~ 10 years later. I don't discount that it is possible in northern FL though.

O. concinnus will normally have 3 or more irregular rows of tubercules on each elytral interval, while O. medorensis has them in more in double rows on most intervals.

… Brad Barnd, 11 February, 2012 - 2:51pm

based on what you guys said, has to be concinnus

my humble 2 centavos

… v belov, 11 February, 2012 - 2:57pm

i dunno...

on the additional images, these look lke punctures rather than tubercles (maybe an imaging artifact??). If that's the case, couls this be a minor orpheus orpheus?

… Blaine Mathison, 11 February, 2012 - 3:40pm

define tubercles...

as i see it, each seta has a tiny tubercle anterad of its attachment point, which gives the sculpture a somewhat raspy quality

… v belov, 11 February, 2012 - 3:46pm

Bit I need it to be the other

… James E. Garrison, 11 February, 2012 - 3:01pm

the good news is,

...no precious specimens have been harmed during the investigation

… v belov, 11 February, 2012 - 3:05pm

there is ZERO "bicoloredness"

there is ZERO "bicoloredness"(lol if that is a word) on the elytra..it is 100% dark green..

… James E. Garrison, 11 February, 2012 - 3:13pm