Diptera.info - Discussion Forum: Lauxaniidae, July 9, 2021, near Budapest, Hungary

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Lauxaniidae, July 9, 2021, near Budapest, Hungary
Xespok	#1 Posted on 13-07-2021 17:18
Member Location: Debrecen, Hungary Posts: 5550 Joined: 02.03.05	This fly seems to have strong intraalar setae, which the Papp key puts to Minettia. But this seems wrong to me. Can someone ID this fly? Xespok attached the following image: [65.35Kb] Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery


John Carr	#2 Posted on 13-07-2021 18:43
Member Location: Massachusetts, USA Posts: 9841 Joined: 22.10.10	If you are referring to the bristle in front of the corner of the scutellum, that is a postalar. A bristle in front of it would be considered intraalar.


Xespok	#3 Posted on 13-07-2021 21:14
Member Location: Debrecen, Hungary Posts: 5550 Joined: 02.03.05	Is the definition of intralar seta wrong here: https://www.delta-intkey.com/anatox/morphol.htm Based on that the two rightmost setae in front of the scutellum would be intralar (the inner one) and postalar (outer one). Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery


Paul Beuk	#4 Posted on 14-07-2021 07:10
Super Administrator Location: Netherlands Posts: 19229 Joined: 11.05.04	If there are two strong setae on (on near) the line between the posteriior notopleural seta and posterior dorsocentral setae, then ia is present. If it is just one, it is absent. By looking at in that way, it is easier to judge presence or absence also in side view. Paul - - - - Paul Beuk on https://diptera.info


John Carr	#5 Posted on 14-07-2021 16:49
Member Location: Massachusetts, USA Posts: 9841 Joined: 22.10.10	Xespok wrote: Is the definition of intralar seta wrong here: https://www.delta-intkey.com/anatox/morphol.htm Based on that the two rightmost setae in front of the scutellum would be intralar (the inner one) and postalar (outer one). That page describes terminology used in Tephritidae. The terminology used to distinguish Minettia (and New World relatives) from other Lauxaniidae is different. There is a second bristle, often weak, in front of the one adjacent to the scutellum. See Manual of Nearctic Diptera volume 2 page 957 figure 31.