| revision of platycheirus lepeletier and serville (diptera: syrphidae) in the nearctic north of mexico. | the 75 nearctic species of platycheirus lepeletier and serville found north of mexico are revised, including five species new to north america: platycheirus alpigenus barkalov and nielsen, platycheirus brunnifrons nielsen, platycheirus clausseni nielsen, platycheirus speighti doczkal, stuke & goeldlin, and platycheirus splendidus rotheray. platycheirus rufimaculatus vockeroth, melanostoma willistoni goot, and melanostoma concinnus snow are recognized as junior synonyms of platycheirus pictipes ( ... | 2016 | 27394216 |