Thread subject: Diptera.info :: Haematopota italica ? pandazisi ? North-western France
Posted by BLecaplain on 05-09-2024 12:12
#1
Hello,
I created a post on the forum Le Monde des Insectes with this
Haematopota identified as
italica.
With the Chvàla, I have a little doubt now. Because of the first antennal segment quite brown (blackish-grey in
italica) and abdomen brown too.
Could it be an other species (
pandazisi for exemple) ?
In alcohol :
Benoît Lecaplain : France : Lassy : 35580 : 30/07/2018
Altitude : NR - Taille : 11 mm
Réf. : 344689
Benoît Lecaplain : France : Lassy : 35580 : 30/07/2018
Altitude : NR - Taille : 11 mm
Réf. : 344690
Benoît Lecaplain : France : Lassy : 35580 : 30/07/2018
Altitude : NR - Taille : 11 mm
Réf. : 344686
In collection :
Benoît Lecaplain : France : Lassy : 35580 : 30/07/2018
Altitude : NR - Taille : 11 mm
Réf. : 344687
Benoît Lecaplain : France : Lassy : 35580 : 30/07/2018
Altitude : NR - Taille : 11 mm
Réf. : 344688
We have a little constriction (clearly visible) on first antennal segment. Femora light brown. In a moor.
Thanks for your help,
Benoît
Edited by BLecaplain on 11-09-2024 13:27
Posted by BLecaplain on 09-09-2024 22:07
#2
Comparaison between
italica (left) and this
Haematopota. First antennal segment is more brown.
But this tabanid was in alcohol since 4 years. Maybe coloration is not a good criteria ?
Edited by BLecaplain on 11-09-2024 13:55
Posted by BLecaplain on 11-09-2024 13:57
#3
more parallel too and slighty longer
Edited by BLecaplain on 11-09-2024 13:58
Posted by BLecaplain on 11-09-2024 14:03
#4
pandazisi =
rotundata ? Maybe a strict southern repartition ?
Mentionned by Séguy in 1926 in north western France (named
variegata)
https://academic.oup.com/jme/article-abstract/7/5/543/2222086?redirectedFrom=fulltext
"The result of the last mentioned record is that the common South European species of Haematopota known as variegata F. must be named pandazisi Krob., 1936."
Posted by Zeegers on 17-09-2024 09:10
#5
As you mention, alkohol tends to revive the colouration. Grey will not turn easily red, but slightly red might turn very red .... beware of this.
Secondly, italica is very variable in colouration. Your statement that first antennal segment is not red in italica is generally but not necessary always true.
Finally, when I look at these pics, it seems to me that there is an indication of a sublateral spot on second tergite. If so, this would confirm my gut feeling, namely that this is the female of H. grandis.
Theo