Beetles

Common pest species found in New York:

Shiny Spider Beetle

Mezium affine

Size: 1/16–1/8 inch long (1.5–3.5 mm); smaller than the thickness of a phone charging cable

Color: Reddish-black and yellowish-gray

Shape: Round, spiderling-like body with a well-developed head, a hard shell, long antennae, and 6 spider-like legs

Legs: 6 legs; long and thin; covered in yellowish-gray hairs

Antennae: Long, thin antennae about the same length as its legs; covered in yellowish-gray hairs

Head: Well-developed head and thorax covered in a dense coating of short yellowish-gray hairs

Body: Large, rounded abdomen that gives it a hump-like appearance; dark reddish-black in color with a smooth and shiny appearance

Smooth Spider Beetle

Gibbium aequinoctiale

Size: 1/16–1/8 inch long (1.5–3.5 mm); smaller than the thickness of a phone charging cable

Color: Dark reddish brown or black

Shape: Round, bulb-like body with a small head, a hard shell, long antennae, and 6 spider-like legs

Legs: 6 legs; long and thin; covered in pale yellow hairs

Antennae: Long, thin antennae about the same length as its legs; covered in pale yellow hairs

Body: Completely dark reddish-brown or black in color with a smooth and shiny appearance; head and thorax are small, oriented downwards, and the same color as its abdomen (reddish-brown); abdomen is large and globular

Cigarette Beetle

Lasioderma serricorne

Size: 1/12–1/8 inch long (2–3 mm); about the length of a small sesame seed

Color: Brown or reddish-brown

Shape: Rounded, oval-shaped body with a hard shell, serrated antennae, 6 legs, and 2 pairs of wings

Legs: 6 legs

Antennae: Look for serrated antennae with 11 tiny segments resembling the teeth on a saw

Body: Covered in a hard shell that is divided into 3 sections: 1 pronotum (thorax) and 2 elytra (forewings); head is angled downwards and concealed by the pronotum when viewed from above

Wings: Look for smooth, brown elytra covered in fine hairs; capable of flight

Drugstore Beetle

Stegobium paniceum

Size: 1/10–1/7 inch long (2.25–3.5 mm); about the length of a large sesame seed

Color: Brown or reddish-brown

Shape: Rounded, oval-shaped body with a hard shell, clubbed antennae, 6 legs, and 2 pairs of wings

Legs: 6 legs

Antennae: Look for a thick, 3-segmented club at the end of each antenna

Body: Covered in a hard shell that is divided into 3 sections: 1 pronotum (thorax) and 2 elytra (forewings); head is angled downwards and concealed by the pronotum when viewed from above; longer and narrower than cigarette beetles

Wings: Look for brown elytra with rows of small grooves running longitudinally down its back; capable of flight

Sawtoothed Grain Beetle

Oryzaephilus surinamensis

Size: 1/10–1/8 inch long (2.5–3 mm); about the length of a sesame seed

Color: Reddish-brown

Shape: Flat and narrow body with saw-like ridges, clubbed antennae, 6 legs, and 2 pairs of wings

Legs: 6 legs

Antennae: Beady-looking antennae with a 3-segment club

Body: Flattened, narrow body with 3 distinct segments (head, thorax, and abdomen); covered in a hard, bumpy shell; look for saw-like ridges on its thorax (6 projections on each side and 3 longitudinal ridges on the top)

Wings: Long, narrow elytra with many longitudinal grooves; cannot fly

Black Vine Weevil

Otiorhynchus sulcatus

Size: 1/4–3/8 inch long (8–10 mm); about the length of a long-grain rice

Color: Slate gray to black

Shape: Oval-shaped body with an elongated snout, elbowed antennae, and 6 legs

Legs: 6 legs

Antennae: Thin, elbowed antennae that are about half the length of its body

Head: Look for a downward-curved snout (rostrum) at the tip of its small but elongated head

Body: Large, bumpy thorax and abdomen with a dark, matte appearance, speckled with small pits and patches of short, pale-colored hairs