Thread subject: Diptera.info :: Bombyliidae, Exoprosopa sp, Rhodes >E. dispar (female)

Posted by piros on 03-12-2015 01:33
#1

Another one... Faliraki, 19-06-2015. Is it possible to ID it?
Thanks for any help!
Greetings,
Henrik

Edited by piros on 06-10-2016 21:01

Posted by piros on 03-12-2015 01:33
#2

2.

Posted by Piluca_Alvarez on 03-12-2015 19:08
#3

This one looks way too similar to Heteralonia rivularis :) (many times placed in genus Exoprosopa too). Going through the keys, just in case, it still takes me directly to that species. It is present in Greece but I cannot find if it is present in Rhodes :( However it is a common and well distributed species. I wouldn't be surprised it is present in Rhodes anyway :)

Posted by piros on 03-12-2015 21:22
#4

Thank you very much! First I also thought about Heteralonia rivularis, but finally I could not convince myself :D
Greetings from Hungary,
Henrik

Posted by piros on 06-10-2016 13:52
#5

I think now that this is also a female of Exoprosopa dispar. Heteralonis rivularis seems to have much more extensively infuscated wings, especially along some veins, e. g. m-m. What do you think?

Thanks for any comment in advance!
Henrik

Edited by piros on 06-10-2016 13:53

Posted by Piluca_Alvarez on 06-10-2016 19:37
#6

Henrik, you are totally right. When I saw the first picture and the name in the title I said you myself 'It cannot be!!!' And certainly it is NOT Heteralonia rivularis (I must have seen this without glasses to see a H. rivularis in this one and key it as such).

And now that we know the real Exoprosopa dispar ;) all makes a lot more sense!! What it is not surprising is that I keyed it to Heteralonia!! ;) Remember that I told you before that E. dispar looked to be much closer to H. rivularis than E. minos!! :)

For comparison, a real female Heteralonia rivularis, frequent in my area:

Edited by Piluca_Alvarez on 06-10-2016 19:40

Posted by piros on 06-10-2016 20:58
#7

Dear Piluca, I cannot thank you enough for your continuous interest and help with these Bombyliidae!

Of course, I remember your note about the similarity between E. dispar and H. rivularis, and the dissimiliraty between the former and E. minos!

With the help of your exceptionally neat picture of H. rivularis, one can also see that this sp has light brown patches of hairs on the side of anterior tergites, which are lacking in E. dispar.

Actually, I am very glad that we cleared this confusing situation :)

Greetings,
Henrik

Edited by piros on 06-10-2016 20:58

Posted by piros on 06-10-2016 21:00
#8

(I change the title accordingly.)

Posted by piros on 06-10-2016 21:09
#9

I would also appreciate if someone could give me the reason for H. rivularis being considered a member of the genus Hetralonia and not Exoprosopa!

Posted by Piluca_Alvarez on 07-10-2016 08:02
#10

Dear Henrik, there is nothing to thank. You were the one that found and photographed and IDed the male and the female of the real E. dispar ;) There was a 'before and after' that moment :D

About the taxonomic position of these two species there is no consensus as far as I know. In the old times they were placed in Hyperalonia in the subgenus Cladodisca (and separately from the true Exoprosopa).

In the World Catalog for Bombyliids (1999) they appear as Heteralonia (genus with various subgenera) but in unplaced subgenera.

In Fauna Europaea they both appear within Exoprosopa. And in Systema Dipterorum (I think it was updated sometime after 2010) they appear as Heteralonia again but under the subgenus Zygodipla.

My opinion doesn't count as I am an amateur and certainly I cannot be more away from being a taxonomist ;) But for me, these 2 are too different from the real Exoprosopa. Exoprosopa s.st. (capucina, pandora, cleomene, jacchus, italica, bowdeni...) are all extremely related and share many characters in common. All the other species with the 'adicional vein' seem to be related but in a separate 'branch'. I am absolutely unaware of genitalia similarities within the groups or what DNA studies might be revealing. But to my amateur feeling the old classification had more sense: Exoprosopa s. str. and Exoprosopa s. lato (Hyperalonia, with several subgenera and dispar/rivularis within Cladodisca). Nothing seems to be like that anymore and I am sure there is a strong reason for that, of which I am totally unaware ;)

Loads of babbling for saying nothing, really :D Sorry, but this is all I can help you with :S

Posted by piros on 08-10-2016 17:54
#11

Thank you very much Piluca!
I think I got the message :)