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 requested: records of Phasia barbifrons
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| Zeegers |
Posted on 14-08-2005 15:19
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Member Location: Soest, NL Posts: 19008 Joined: 21.07.04 |
Phasia barbifrons is a small Tachinidae, which is normally rather rare in the Netherlands but abundant in some years. This years proves to be one of those. I just returned from a nearby forest and saw literally thousands of them. I am very interested in the distribution of barbifrons in the Netherlands, since not specimens have been recorded (yet) west of my home, Soest. Phasia barbifrons is easily recognized: * very small, 3 -4 mm. * on flowers, often Umbellifera, also Compositae * black with red eyes * eyes nearly touching on the vertex * abdomen unusually broad and short In short, it is a dwarf and black version of Phasia hemiptera. All records are welcome: th.zeegers@tref.nl You may find them till the end of August. Good luck Theo |
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| Zeegers |
Posted on 15-08-2005 18:44
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Member Location: Soest, NL Posts: 19008 Joined: 21.07.04 |
Additional remark As John Smit has pointed out correctly, there is yet one other Tachinidae that fits the diagnosis given above: Phasia pusilla. This species is quite rare in The Netherlands, but could be found in the dune region. So please collect any small Phasia when in doubt. With a microscope, the difference is simple: halters yellow -> Phasia barbifrons halters dark -> Phasia pusilla Thanks, John Theo |
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