Thread subject: Diptera.info :: Bibionidae, Bibio varipes, male
Posted by NakaRB on 09-02-2021 20:39
#1
Russia, Moscow region, 16.05.2020
Edited by NakaRB on 10-02-2021 21:13
Posted by Zeegers on 10-02-2021 08:40
#2
First impression is male B. johannis, but legs are a bit dark....
Theo
Posted by eklans on 10-02-2021 11:12
#3
What about B. varipes?
Eric
Posted by Zeegers on 10-02-2021 13:08
#4
Varipes has light hairs on abdomen.These look black, but I am not sure.
Theo
Posted by Zeegers on 10-02-2021 13:12
#5
Elongated hind metatars would support varipes, as would the date.
Posted by eklans on 10-02-2021 13:42
#6
Bibionidae males key in Vliegenmepper 1997:
2b Borststukrug grotendeels zwart behaard -> 9
9 Schenen met helder rood -> 10
10 Metatars 3 slank, ongeveer 4 x zo lang als breed -> varipes
Greetings, Eric
Posted by Zeegers on 10-02-2021 17:48
#7
Must be an excellent key 🤪🤠🍰🥂🥂
Posted by eklans on 10-02-2021 18:04
#8
Indeed, it is! |t
Posted by NakaRB on 10-02-2021 21:13
#9
Thank you!
Posted by John Carr on 11-02-2021 16:55
#10
eklans wrote:
Bibionidae males key in Vliegenmepper 1997:
2b Borststukrug grotendeels zwart behaard -> 9
9 Schenen met helder rood -> 10
10 Metatars 3 slank, ongeveer 4 x zo lang als breed -> varipes
Greetings, Eric
I would pick "niet noemenswaardig lichter" over "helder rood" in couplet 9, but I end at the same species: "
Bibio varipes var.
atripes."
In America some of the common species of
Bibio have several synonyms due to variation in leg color.
Posted by eklans on 11-02-2021 17:03
#11
|t
Posted by Zeegers on 12-02-2021 09:50
#12
Yes, this “atripes” variation is confusing, hence the doubled key-out.
Note that all intermediates do occur.
( meaning: the question whether or not this is atripes, is ill-defined)
Theo