Thread subject: Diptera.info :: Chrysotoxum sp.

Posted by Alexandru Pintilioaie on 25-08-2014 18:03
#1
This specimen was photographed today in Romania, it is C. bicinctum or there is some more similar species like this one ?

imagizer.imageshack.us/v2/673x643q90/539/IXW6Z5.jpg

Posted by ValerioW on 25-08-2014 18:13
#2
Right ID! No dubt! TumbsUp

Posted by Alexandru Pintilioaie on 25-08-2014 18:18
#3
Many thanks !Smile

Posted by ValerioW on 25-08-2014 18:23
#4
Sorry, forgot to say: FEMALE Smile

Posted by Alexandru Pintilioaie on 25-08-2014 18:29
#5
Thanks....but tell me please, what's the difference between male and female (I mean in general in flies) ?

Posted by ValerioW on 25-08-2014 18:36
#6
I'm sorry to say that there's no general single rule. In many cases, with higher Brachycera, like Chrysotoxum, dicoptic eyes (i.e. clearly separated eyes) are feminine, while holoptic or near so eyes (i.e. eyes touching together) are masculine. But as I told, this happens with many but not all. For some taxa like mosquitoes and robberflies for example, genitalia are quite useful for differentiate females and males..

Posted by Alexandru Pintilioaie on 25-08-2014 19:01
#7
Ok, it is enought for me, many thanks for your help ! Grin

Posted by ValerioW on 25-08-2014 19:27
#8
alexaandru wrote:
Ok, it is enought for me, many thanks for your help ! Grin



TumbsUp Ok! Feel welcome!