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Diptera.info :: General Diptera forums :: Overviews
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How to Identify a Fly
Tony T
#1 Print Post
Posted on 21-10-2014 14:47
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Location: New Brunswick, Canada
Posts: 664
Joined: 08.02.07

1] Post image on Diptera.info. Keep specimen in case more information is needed.
Specimen will always be identified at least to Family:
SEE HERE
Family: Psilidae (thanks to ruud van der weele & John Carr)
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Tony T
#2 Print Post
Posted on 21-10-2014 14:49
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Location: New Brunswick, Canada
Posts: 664
Joined: 08.02.07

2] If specimen cannot be immediately identified beyond family, hope that someone will reference a key:
SEE HERE
(thanks to John Carr)
Use the key to further ID specimen
Buck & Marshall Key:
1 First flagellomere 2.5-4.0x as long as high..... 2
flagellomere is 2.7x as long as high
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Tony T
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Posted on 21-10-2014 14:51
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Location: New Brunswick, Canada
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2: Tergites 2-4 more or less extensively bare but some marginal bristles always present....5

flight period mid-July to late September in Canada (Canadian specimen collected October 17).
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Tony T
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Posted on 21-10-2014 14:53
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5: Parafacials at narrowest point less than half as wide as vertical diameter (height) of 1st flagellomere:
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Tony T
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Posted on 21-10-2014 14:54
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Location: New Brunswick, Canada
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two pairs of subequal dorsocentral bristles:

.......................................................... Psila perpolita
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08.09.25 16:17
Anyone has this article'A REVISION OF SPECIES OF THE GENUS CADREMA WALKER (DIPTERA, CHLOROPIDAE) FROM ISLANDS IN THE INDIAN OCEAN'? Smile

24.08.25 16:55
Thanks for your proposal, but for me this option is ineligible.

15.08.25 10:15
For those specialists not active on Facebook, I just ask to consider to join our group on FB. Please, be aware that it is not necessary at all to be active on FB outside the diptera group. Actually, n

15.08.25 10:13
We received requests to get permission to ask for ID in our Facebook group, https://www.facebo
ok.com/groups/1798
95332035235/ Until now we pointed to diptera.info, but since Paul's passing we not

23.06.25 18:10
If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

23.06.25 11:18
Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys... I will keep this on my list and hope th

19.06.25 15:33
I have the hard copy book, if you have any specific queries, but I'm not scanning the 500+ pages!

02.06.25 18:26
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
il.com

28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

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