Thread subject: Diptera.info :: Tachinidae?
Posted by Roden on 11-06-2017 17:35
#1
Tachinidae, I think. Not more than 5 mm. Atacama Desert, Chile.
Posted by John Carr on 11-06-2017 18:56
#2
Probably an undescribed species of
Paradidyma (tribe Minthoini).
It doesn't match any of the species in the revision by Reinhard (1934), but he may not have included all species described by Townsend in other genera.
Reinhard, H. J. 1934. American muscoid flies of the genera Ceratomyiella and Paradidyma. Proceedings of the United States National Museum 83 [= No. 2973]: 9–43.
Posted by Zeegers on 11-06-2017 19:48
#3
Nice to see the vitta-feature implying Minthoini works in Chile as well.
Beware, though, that it is not always correct ! (cf. my Minthosoma from Yemen).
Theo
Posted by John Carr on 11-06-2017 20:13
#4
Some species are not so distinctively striped, but the common species are. Other characters present in many but not all species are closed cell r5 and modified female fore tarsi. The strong parafacial bristles distinguish
Paradidyma from the other North American genus of Minthoini,
Vanderwulpia.
Posted by Zeegers on 11-06-2017 20:31
#5
Indeed, it is a oneway implication 'striped --> possible Minthoini', and definitely not vice versa !
Posted by ChrisR on 12-06-2017 07:04
#6
Fascinating fly ... my first thought was "Minthoini" but then no lateral compression of the abdomen and that steeply angled median vein ... interesting :)
Posted by Roden on 13-06-2017 06:07
#7
Thanks for the ID. Very interesting comments.
Posted by John Carr on 07-12-2024 19:13
#8
I checked the catalog of Tachinidae of Chile published in 2021 and there are no records of Minthoini from the country. This could be
Ateloglutus (Proteloglutus) chilensis (Brèthes, 1920) in tribe Voriini. Some of the members of Voriini and Minthoini resemble each other, although they are in different subfamilies.
See
González CR (1989) El genero Ateloglutus Aldrich, 1934 con una nueva especie para la Republica Argentina (Diptera: Tachinidae: Voriini). Acta Entomológica Chilena 15: 225–228.
http://revistas.u.../view/2293
Posted by Zeegers on 08-12-2024 22:27
#9
If this is a Voriini .... you have very weird Voriini !
Theo
Posted by John Carr on 09-12-2024 05:58
#10
I found the description of the species I mentioned and I don't think it's the fly in the picture.
I'm back to Minthoini. Not
Paradidyma any more. It has two widely spaced intra-alars while this fly has the hind two of a normal set of three. Probably one of the three genera of South American Minthoini, and not a species recorded from Chile. I don't have enough literature to say more.
In America Minthoini and the
Wagneria group have been confused. Both groups tend to have a row of strong parafacial bristles, a similar arrangement of scutellar bristles, and closed cell r5.