Small, about 1/8 inch wide, hole generally surrounded by a conical mound of dirt

Found in areas where grass in thinning or bare

Found anytime during spring or summer

Ant 1/10 inch long and brown

Large mounds with numeroud 1/8 to 1/4 inch wide holes

Found in healthy lawns as well as thinning turf

Found anytime during spring or summer

Ants 1/8 to 1/4 inch long and black or black and red

Moderate sized holes, about 2 inches wide

Lack of dirt surrounding holes

Yellowjackets generally not noticed until mid to late summer

Yellowjackets are slender, 3/8 inch long, black and yellow wasps

Moderated sized holes, about 2 inches wide, found in well-drained sunny sites

Typically with large mound of dirt on one side of hole

Cicada killers active mid to late summer

Cicada killers large, 1 to 1 1/2 inches long, black and yellow solitary wasps

Shallow, dead-end, small holes in the ground appearing like golf divots

Randomly scattered over lawn

Number of holes greater in spring (squirrels) and fall (skunks or racoons)

Racoons will also roll back recently installed sod looking for food