Diptera.info - Discussion Forum: Oxycera nigricornis

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Oxycera nigricornis
helge	#1 Posted on 13-01-2021 13:05
Member Location: Austria Posts: 1322 Joined: 10.02.16	Austria, June. Further ID possible? Thank you for your help. Helge helge attached the following image: [211.6Kb] Edited by helge on 14-01-2021 16:07


eklans	#2 Posted on 13-01-2021 14:48
Member Location: Franconia, Germany Posts: 3391 Joined: 11.11.18	Hi Helge, I think it's a male Oxycera nigricornis (though I'm slightly confused by the yellow dots on the back). Greetings, Eric Edited by eklans on 13-01-2021 14:52


Zeegers	#3 Posted on 14-01-2021 08:34
Member Location: Soest, NL Posts: 18518 Joined: 21.07.04	Interesting observation by Eric. These yellow spots shouldn't be there, according to Rozkosny (1982). "Mesonotum medially black, at most with small yellow spots on notopleura, transverse suture and postalar calli' That said, I totally agree with male nigricornis. @Helge, it would be helpful if you could mention altitude, especially in those cases in which the altitude is above 1000 m. Thanks Theo


helge	#4 Posted on 14-01-2021 16:06
Member Location: Austria Posts: 1322 Joined: 10.02.16	Ok, thank you both! I also wondered about these spots. Photo was taken by a friend - unfortunately I dont know the altitude, but I will ask him. Helge Edited by helge on 14-01-2021 16:08


Zeegers	#5 Posted on 14-01-2021 17:19
Member Location: Soest, NL Posts: 18518 Joined: 21.07.04	Well, in this case it is clearly no pseudoamoena, so altitude is no longer necessary. Theo


helge	#6 Posted on 15-01-2021 10:57
Member Location: Austria Posts: 1322 Joined: 10.02.16	Hi Theo, it was found at just under 1000 metres above sea level (940m a.s.l.). Why is it no longer important? Helge


Zeegers	#7 Posted on 15-01-2021 12:37
Member Location: Soest, NL Posts: 18518 Joined: 21.07.04	It has become clear, it is not a strict alpine species. In general, especially in aberrant specimens, having all information available like locality, date and altitude might help. If for instance, the altitude is 200 m. asl., I can excllude Glaucops hirsutus for sure. If you don’t like altitude, your only option is to migrate to the Netherlands Theo


helge	#8 Posted on 15-01-2021 12:52
Member Location: Austria Posts: 1322 Joined: 10.02.16	Thank you Theo! hehe No, I will not move away from my beloved Alps (;