Thread subject: Diptera.info :: Singapore Asilidae is Orthogonis scapularis

Posted by davegball on 30-03-2014 05:17
#1
Hi
Was hoping for an ID for this Robber Fly. Quite a large fly about 1 inch in length. Spotted in wooded habitat near ground level.
Thanks,
David.
Edited by davegball on 06-04-2014 05:42

Posted by Eric Fisher on 04-04-2014 06:37
#2
Orthogonis scapularis, female (Laphriinae).

Regards, Eric

Posted by davegball on 04-04-2014 10:44
#3
Thank you Eric. I should have posted in the Asilidae forum. Thanks to whomever moved it for me.

Posted by Quaedfliegh on 04-04-2014 23:41
#4
Just an ignorant question for Eric. What separates this genus from Choerades? The absence of the shiny facial hair?
Edited by Quaedfliegh on 24-04-2014 22:34

Posted by Eric Fisher on 05-04-2014 07:21
#5
Reinoud,

The main difference to me (following Hull's concepts for Laphriinae) is the lack of the 'Laphria' proboscis -- the long, greatly flattened, parallel-sided 'butter knife' mouthparts of the Laphriini s. str. (characteristic of genera like Laphria, Choerades, Lampria, Maira, etc.). Orthogonis has a more cylindrical (in cross section), triangular - tapered proboscis. The males of O. scapularis have a bright - golden face and mystax

Posted by Quaedfliegh on 05-04-2014 12:01
#6
Eric,

Thank you! That is very informative and I should have seen this as Andrenosoma has also a different proboscis.