General Information

  • The Twin-spotted Spiketail is also know as the "Spotted Biddie". (Dunn 1996)
  • Where are they found?
    • They are normally found throughout the Midwest in Wisconsin, Indiana, Michigan, Ohio, New York, and even Ontario just to name a few. (Dunn 1996)
  • Description
    • wingspan is between 80-100 mm and has a length of 64-76 mm.
    • pairs of yellow, lateral spots running down the abdomen. (Arnett 1985)
    • along with it's spots, the Spiketail also has two distinct yellow stripes on it's thorax
    • although the female and male look very similar, females are distinguished by having a much more prominent ovipositor at the end of the abdomen. (Berger 2004)