Plains Spadefoot (Spea bombifrons)

IdentificationPlainsSpadefoot_Snoberger-cropped.jpg

  • Size: ~1/2 inch (metamorph) to ~2.5 inches (adult)
  • Dorsal color: light gray or brown with dark mottling
  • Often with orange small warts
  • Relatively smooth skin
  • Ventral color: white
  • Vertical pupils
  • Bony lump (boss) between the eyes (see below)
  • Mp3 of call (courtesy of NatureNorth.com)

PlainsSpadefoot_WGFD-225px.png 

Drawing from Baxter & Stone 1980; Photo by Charlotte Snoberger

 

Eggs & Tadpoles

  • Eggs in small mass attached to submerged vegetation
  • Tadpoles often pale brown to greenish
  • Tadpole eyes medial, anal vent on midline

 

PlainsSpadefoot_metamorph_Brady-400px.jpg     PlainsSpadefoot_juvenile_Keehn-400px.jpg

Photo by Brady                                                                                         Photo by Charlotte Snoberger

 

Breeding Habitat

After heavy rains in temporary puddles, ditches, pools, and ponds in prairies, sagebrush steppe, sandhills and desert scrub.

AmphibianHabitat2_WYNDD-700px.jpg

Photo by Wyoming Natural Diversity Database

 

Native Range

PlainsSpadefoot.jpg

Map by Wyoming Natural Diversity Database