Fleas
Common pest species found in New York:
Cat Flea
Ctenocephalides felis
*Note: Cat fleas are the most common type of flea found on both cats AND dogs

Size: 1/16–1/8 inch long (1.5-3 mm); about the width of a crayon tip
Color: Reddish-brown to black
Shape: Laterally flattened, oval-shaped body with a small head and 6 legs; does not have wings
Legs: 6 spiny, spring-like legs adapted for jumping; hind legs are particularly long and well-developed
Antennae: Tiny, club-like antennae that are too small to see with the naked eye
Head: Small, sloping head with piercing-sucking mouthparts for feeding on blood; look for 2 characteristic rows of small black spines (combs) on both sides of its head resembling a mustache (genal comb) and a mane of hair (pronotal comb)
Body: Laterally compressed (appears flat when laid on its side) with overlapping body segments; covered with dark spines