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Diptera.info :: Identification queries :: Diptera (adults)
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Muscidae, Lispocephala alma or falcatula -> Lispocephala needs revision
casebearer
#1 Print Post
Posted on 23-12-2019 01:17
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This female (4.5 mm) was collected at the outside of my house in a small town in the Netherlands (not far from Germany) near a forest on the 24th of November.

I believe it is Lispocephala alma or falcatula. Possibly genital dissection is needed to decide which one. On the other hand D'Assis Fonseca (Handbook for the Identification of British Insects. Diptera Cyclorrhapha Calyptrata Secion (b) Muscidae. Royal Entomological Society of London Vol. X. Part 4 (b) 1968; downloadable at royensoc.co.uk) presents a key on p. 68 - 69 by which it maybe identified (although not by me). D'Assis Fonseca in figure 12 (p. 66) also illustrates some differences in the placement of bristles on the fourth abdominal tergite. I have attached the figure below.

In addition the author gives as flight time April-May + July-September for alma and February till May for falcatula.

Maybe one of you can help me out.

Best wishes,

Henk ten Holt
casebearer attached the following image:


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Edited by casebearer on 02-02-2020 05:56
 
casebearer
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Posted on 23-12-2019 01:19
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second picture
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casebearer
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Posted on 23-12-2019 01:20
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Third picture
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casebearer
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Posted on 23-12-2019 01:20
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casebearer
#5 Print Post
Posted on 23-12-2019 01:21
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Figure 12 (D'Assis Fonseca, 1968, p. 66)
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Edited by casebearer on 23-12-2019 01:22
 
casebearer
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Posted on 26-01-2020 06:03
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Up! (Maybe somebody could reflect?)

Best wishes, Casebearer
 
Nikita Vikhrev
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Posted on 26-01-2020 17:58
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Nobody knows are differences offered by Fonseca (or Gregor et al. 2002) reliable or not. Lispocephala requires revision.
Nikita Vikhrev - Zool Museum of Moscow University
 
casebearer
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Posted on 02-02-2020 05:46
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Thanks very much for clearing that up , Nikita!

Best wishes, Henk
 
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