Arcola malloi (Pastrana), the alligatorweed stemborer, a new synonym of Macrorrhinia endonephele(Hampson) (Lepidoptera: Pyralidae: Phycitinae)

  • James E. Hayden
  • Jean-François Landry
Keywords: Biological control, DNA barcoding, Divitiaca, lectotype, Nearctic, Neotropics, Ocala, Rhinaphe, Vogtia


Arcola malloi (Pastrana, 1961) is a junior subjective synonym of Macrorrhinia endonephele (Hampson, 1918) syn. nov. (Lepidoptera: Pyralidae). The species is a biological control agent introduced in United States and Australia to control alligatorweed, Alternanthera philoxeroides (Mart.) Griseb. (Amaranthaceae). The synonymy is recognized by comparison of type specimens, genitalic dissections, and DNA COI barcoding. Vogtia Pastrana, 1961 syn. nov. and Arcola Shaffer, 1995 syn. nov. are synonymized with Macrorrhinia Ragonot, 1887. Macror-rhinia megajuxta (Neunzig and Goodson, 1992) comb. nov. is transferred from Ocala Hulst, 1892. Lectotypes are designated for Divitiaca ochrella Barnes and McDunnough, 1913, and Divitiaca simulella Barnes and Mc-Dunnough, 1913.