Diptera.info - Discussion Forum: Bibio sp. --> Bibio cf. rufipes

Diptera.info :: Identification queries :: Diptera (adults)

Bibio sp. --> Bibio cf. rufipes
Eugen	#1 Posted on 28-05-2021 22:40
Member Location: Bayern, Deutschland Posts: 254 Joined: 10.04.08	Hi, could that be Bibio johannis? Found on May 23, 21 in Germany, North Bavaria, on a meadow. Estimated size 6-8 mm. Thanks and Regards, Eugen Eugen attached the following image: [142.5Kb] Edited by Eugen on 29-05-2021 17:41


Eugen	#2 Posted on 28-05-2021 22:41
Member Location: Bayern, Deutschland Posts: 254 Joined: 10.04.08	Bild2 Eugen attached the following image: [70.27Kb]


Eugen	#3 Posted on 28-05-2021 22:41
Member Location: Bayern, Deutschland Posts: 254 Joined: 10.04.08	Bild3 Eugen attached the following image: [78.96Kb]


eklans	#4 Posted on 29-05-2021 08:00
Member Location: Franconia, Germany Posts: 4525 Joined: 11.11.18	Hi Eugen, this is most probably a female Bibio rufipes: - Wings brownish - Thorax sides partly red - Abdomen ventrally yellow Greetings, Eric


Zeegers	#5 Posted on 29-05-2021 08:13
Member Location: Soest, NL Posts: 19310 Joined: 21.07.04	from lowland Bavaria ? Theo


eklans	#6 Posted on 29-05-2021 08:44
Member Location: Franconia, Germany Posts: 4525 Joined: 11.11.18	Don't you expect them to be here (I'm in Franken, Northern Bavaria, too, and they are quite common here). Greetings, Eric


Eugen	#7 Posted on 29-05-2021 17:39
Member Location: Bayern, Deutschland Posts: 254 Joined: 10.04.08	Hi Eric and Theo, many thanks for your answers. Here we have an Low mountain Range up to 920 msm (Rhön). I found it at 380 msm. Greetings Eugen


Zeegers	#8 Posted on 30-05-2021 09:51
Member Location: Soest, NL Posts: 19310 Joined: 21.07.04	Schacht in his checklist for Bayern does not mention this species https://www.zobodat.at/pdf/ENT_0018_0549-0555.pdf According to fauna-eu, it is strictly boreal https://fauna-eu.org/cdm_dataportal/taxon/b25f05f0-a877-43e5-99bf-e4282ec7138b and johannis often has very red legs .... So unless you are 1000 % sure and you have males as well, rufipes seems unlikely Theo


eklans	#9 Posted on 30-05-2021 11:04
Member Location: Franconia, Germany Posts: 4525 Joined: 11.11.18	Hi Theo and thanks for the Schacht-pdf. I will check my females, males and couples - of which I think they are rufipes - again as accurately as possible and come back with the analysis asap. Greetings, Eric


Zeegers	#10 Posted on 30-05-2021 14:21
Member Location: Soest, NL Posts: 19310 Joined: 21.07.04	That would be great. Of course, I cannot comment on specimens I haven’t seen, but it needs to be double checked. Thanks Theo


Eugen	#11 Posted on 30-05-2021 20:31
Member Location: Bayern, Deutschland Posts: 254 Joined: 10.04.08	I still have one photo Eugen attached the following image: [88.04Kb]


libor	#12 Posted on 30-05-2021 21:17
Member Location: western Bohemia Posts: 1301 Joined: 30.05.09	And what about immature johannis or varipes? Libor


Zeegers	#13 Posted on 01-06-2021 07:53
Member Location: Soest, NL Posts: 19310 Joined: 21.07.04	I disregard female Bibio, so I shouldn’t comment, but I am convinced you are right, Libor. johannis can have totally red legs. Theo Edited by Zeegers on 01-06-2021 07:54


eklans	#14 Posted on 01-06-2021 10:40
Member Location: Franconia, Germany Posts: 4525 Joined: 11.11.18	I've looked again at the images and on #1 I think I can see the V-shaped callus on the frons which should be significant for the female rufipes (Bibionidae de la faune Belge, Jan Verbeke). If you compare this snippet with your original photo you may see it more clearly. Eric eklans attached the following image: [143.17Kb]


Eugen	#15 Posted on 01-06-2021 15:56
Member Location: Bayern, Deutschland Posts: 254 Joined: 10.04.08	Hi together, thank you very much for your effort. I have attached an enlarged section again. Unfortunately, it doesn't get any better. Greetings Eugen Eugen attached the following image: [84.5Kb]