01296nas a2200133   4500008004100000245009000041210006900131260002700200300001200227490000800239520085000247100001801097856004701115       2013                        eng d00aReview of the Palaearctic Acomopterella Zaitzev (Diptera, Sciaroidea, Mycetophilidae)0 aReview of the Palaearctic Acomopterella Zaitzev Diptera Sciaroid  bPensoft Publishersc02  a11–320 v2693 a<p>The distribution of Acomopterella species in the Palaearctic region has been re-examined in this study, using recently collected material. The European species was found to be distributed in the eastern Palaearctic as well. A second Palaearctic species from Honshu (Japan) is herein described. The morphology of adult specimens was studied by light microscopy and scanning electron microscopy. The shape of functional specialized setae on mid tibiae in Acomopterella and seven further fungus gnat genera is described and the suitability of this character for systematic studies is discussed. Details of a &ldquo;hind tibial organ&rdquo; are described.The position of Acomopterella in the tribe Gnoristini is briefly discussed. Acomopterella is found to be more closely related to Speolepta Edwards, 1925, than to any other recent genus.</p>
1 aKallweit, Uwe  uhttp://dx.doi.org/10.3897/zookeys.269.4252