Heleomyza serrata

(Linnaeus, 1758)

Heleomyza serrata is a small fly in the Heleomyzidae, measuring 3–7 mm in body length. The is distinguished by specific chaetotaxy: setae present on the , multiple pairs of setae on the prothorax, and at most one hair on the mesopleura. Males possess distinctive genitalia with , unexpanded epandrium base, and surstyles that are much longer than the epandrium and evenly curved throughout their length.

Heleomyza serrata, North Wales, March 2013 (16720749587) by Janet Graham. Used under a CC BY 2.0 license.Heleomyza serrata, Trawscoed, North Wales, May 2012 (17253803165) by Janet Graham. Used under a CC BY 2.0 license.Heleomyza serrata, Trawscoed, North Wales, May 2012 2 (17046882777) by Janet Graham. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Heleomyza serrata: //ˌhɛliˈɒmɪzə sɪˈreɪtə//

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Identification

Distinguished from by the combination of setae on the , several pairs of setae on the prothorax, and at most one hair on the mesopleura. Male genitalia provide definitive identification: , unexpanded base of epandrium, and elongated, evenly curved surstyles that exceed the epandrium in length.

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Distribution

Palearctic region, with records from Spain, Iceland, Ireland, Great Britain, France, Belgium, the Netherlands, Germany, Denmark, Norway, Sweden, Finland, Switzerland, Austria, Poland, the Czech Republic, Slovakia, Ukraine, Romania, Bulgaria, Russia (including northern Caucasus and Siberia), Kazakhstan, and North America.

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