Goliathus head morphology

[Deleted]

I was hoping somebody on here could help label the proper head morphology for Goliathus. I've been able to find morphology for many other horned beetles, but nothing for these guys. As you can see, I have circled the features in question.
Thanks

P.S.-I can post an unaltered copy of my charcoal sketch if anybody wants it.

[africaone]

1 - left median horn (bifid)
2 - lateral horn (supra ocular)
3 - angle of basal margin

to be more complete see De palma and Frantz, 2010 (Taxonomic revision of Megalorhina ...)

[Deleted]

Thanks Africaone, I appreciate the info.