Phanaeus difformis LeConte, 1847

Recorded Distribution: MEXICO: Tamaulipas — Nuevo Laredo, San Fernando, Altamira, UNITED STATES: Arkansas — Franklin, Jefferson, Colorado — Prowers, Kansas — Reno, Ford, Clark, Comanche, Louisiana — Caddo, Orleans, Cameron, Missouri — Jackson, New Mexico — Bernalillo, Curry, Chaves, Lea, Dona Ana, Oklahoma — Woods, Logan, Cherokee, Pottawatomie, Cotton, Love, Bryan, Texas — Foard, Wilbarger, Montague, Parker, Erath, Winkler, Comanche, Limestone, Milam, Mason, Brazos, Llano, Lee, Hardin, Gillespie, Harris, Bexar, Uvalde, Frio, Victoria, Live Oak, Dimmit, Calhoun, San Patricio, Nueces, Duval, Kleberg, Kenedy, Brooks, Starr, Willacy, Hidalgo.

Altitude: from 3 to 2154 m a.s.l.

Biomes: Deserts & Xeric Shrublands, Temperate Broadleaf & Mixed Forests, Temperate Conifer Forests, Temperate Grasslands, Savannas & Shrublands, Tropical & Subtropical Grasslands, Savannas & Shrublands.

Ecorregions: NEARCTIC: Chihuahuan desert, Tamaulipan mezquital, Ozark Highlands mixed forests, Ozark Mountain forests, East Central Texas forests, Mississippi lowland forests, Arizona Mountains forests, Piney Woods, Central Tallgrass prairie, Central-Southern US mixed grasslands, Western shortgrass prairie, Cross-Timbers savanna-woodland, Edwards Plateau savanna, Texas blackland prairies, Western Gulf coastal grasslands .

Predicted distribution: This species distributes from 22.87° to 43.07° latitude in an area of 943,233 Km2. Its predicted distribution has a mean annual temperature of 16.45-20.13° C with a maximum difference of temperature of 34.39° C during the year and mean precipitation of 544-1002 mm per year.