Thread subject: Diptera.info :: Two different Cylindromyias (Tachinidae)? (14.09.21) --> C. brassicaria group
Posted by Juergen Peters on 15-09-2021 19:34
#1
Hello,
two years ago I had my first encounter with the genus
Cylindromyia here (northwest Germany), two individuals in about 2 weeks. They were identified by Theo Zeegers as
Cylindromyia brassicaria.
Yesterday I found the genus again on camomile flowers next to a path between acres. Length about 10 mm.
It was conspicuous, that one individual had a continuous stripe on its abdomen, the other not. Different species, a gender difference or simple variation?
Here also a little video of one of the flies cleaning its legs:
https://insektenf...utzend.mp4
Edited by Juergen Peters on 15-09-2021 22:11
Posted by Juergen Peters on 15-09-2021 19:35
#2
Pic #2
Posted by Juergen Peters on 15-09-2021 19:35
#3
Pic #3 (other individual)
Edited by Juergen Peters on 15-09-2021 19:36
Posted by Juergen Peters on 15-09-2021 19:36
#4
Pic #4
Posted by Juergen Peters on 15-09-2021 19:37
#5
Pic #5
Posted by eklans on 15-09-2021 19:51
#6
Hallo Jürgen, the other one - with continuous stripe - has no discals: C. Pusilla?
Posted by Juergen Peters on 15-09-2021 19:57
#7
eklans wrote:
the other one - with continuous stripe - has no discals: C. Pusilla?
Thanks, Eric.
Posted by Zeegers on 15-09-2021 21:06
#8
Both have basal scutellar bristles so both are males in the brassicaria group. Much too vig for pusilla.
Theo
Posted by Juergen Peters on 15-09-2021 22:10
#9
Thanks, Theo!
Zeegers wrote:
Much too big for pusilla.
the second one may have been a little bit smaller, but not strikingly.
Edited by Juergen Peters on 16-09-2021 17:41
Posted by Zeegers on 16-09-2021 07:28
#10
Still, the wing venation and the arista contradicts pusilla.
Theo