Kansan myrmecophilic update

Arriving in Kansas I realized that there is a very rich fauna of myrmecophiles here. For one thing, unlike Ithaca, Aphaenogaster seem to dominate woodland habitats and I have been seeing a plentiful fauna associated with them.

Meet the genus Cedius. A myrmecophilous genus of the staphylinid subfamily Pselaphinae. Myrmecophiles of Aphaenogaster, Lasius etc., they are found only when these ants nest in relatively dry wood. Cedius are especially easily collected when nest entrances are exposed under bark of these dry woods.

Cedius zeigleri - largest member of the genus

Cedius zeigleri - largest member of the genus

There was too much dust on the sensor to remove in a resonable amount of time. I know there are glares on the image but this was the first time using this imaging system here at KU. We will be getting a new imaging system setup soon and that’ll be bye bye to all that dust.


2 responses to “Kansan myrmecophilic update

  1. looks cool, for a staph. whats the size?

    • taroeldredge

      What do you mean “for a staph”?!!!

      Short answer: small, about 3 mm.

      Long answer: they’re big, as one of the largest North American representatives of the subfamily Pselaphinae. Pselaphinae are some of the smallest staphs though, so they’re the giants of the midgets.

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