Phyllomyza tetragona

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ITIS Name

Phyllomyza tetragona

Rank: 
Species
Unit Name 1: 
Phyllomyza
Unit Name 2: 
tetragona
Usage: 
valid
Authors: 
Hendel, 1924
Page number: 
407
Type data: 
Austria. Vienna; Poland. Legnica [=Liegnitz]. ST 1M ?NMW; ST1F ?ZMHU
BDWD_rec_number: 
126919
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Nomenclature & Description

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Taxon Description

Phyllomyza tetragona Hendel, 1924

Biology

Phenology: May-September.

In the Netherlands specimens were collected end of April to September in Malaise traps.

Diagnostic Description

2-3 dc; ventral side of palpus not setulose; halter yellowish

Morphology

Original description: 1 Männchen leg, Hendel 3. Mai 1911 bei Wien; 1 Weibchen leg. Becker April, Liegnitz. Körper und Flügel: ca. 1 1/2 mm. Kopfprofil ähnlich dem von securicornis, Backen ca. 1/5 Auge hoch, also nicht linear, aber kurz. Gesichtslinie konkav. Fühler schwarz, bis zum unteren Augenrande reichend; beim Männchen 3. Glied gross, quadratisch, abgerundet, nur kurz pubesziert, Arista medial, sehr dünn und nur 1 1/2mal so lang wie das 3. Antennenglied. Beim Weibchen ist das 3. Glied kleiner und abgerundeter, die Arista 2mal so lang wie das 3. Glied der Fühler. Taster schwarz, nicht so weit wie die Fühler vorreichend, nur behaart, ohne abstehende Beborstung. Rüssel nicht so stark verlängert wie bei Leanderi, wie bei securicornis. Scheitelplatten und Ocellendreieck glänzend, scharf abgesetzt von der samtschwarzen Strieme. 3 ors und 2 ori. Wie bei securicornis. Körper schwarz; Oberseite mit merklichem Glanze. Pleuren stärker glänzend. Rücken ohne grauen Schimmer. 2 dc; das vordere Paar klein; prsc deutlich. sc konvergent. Beine schwarz. Vorderhüften braun. Füsse und der grösste Teil der Vorderschienen gelbrot. Flügel hyalin, Kosta braun. Letzter Abschnitt der Cu 1 1/2mal so lang wie tp. Kostalabschnitt 2.-3. kleiner als der zwischen 3.-4. Letzter Abschnitt der M nicht ganz 4mal so lang wie der vorletzte. Schwinger ganz rotgelb.

Distribution

Germany, Poland, Austria, Hungary, Netherlands

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Species description

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Specimens map

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Publication

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Countries map

Phyllomyza tetragona, distribution map

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Page

The Milichiidae from 'De Kaaistoep', The Netherlands

Introduction

The Milichiidae fauna of the Netherlands is quite well known due to early collectors like De Meijere and currently activ collectors like Jan Willem van Zuijlen. In the checklist for the Netherlands (Beuk 2002) nine valid species are listed and two nomina dubia. The only recent paper on the milichiid fauna of the Netherlands is by Beuk & Brake (1996).

Phyllomyza male heads (palaearctic species)


 
Species with 2 dorsocentral setae and yellow halters:
Phyllomyza tetragona, photo


Photo:
P. tetragona, male, head, lateral view (Photo: P. Brake)
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Authors & Sources

Citation created: Thu, 21 Apr 2011 15:22:33 +0100

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    Dear Scratchpads team,

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