Lab Practical 6

Question 1

somewhat flat, 1/4” long, black head, orange wings with broad black stripe down the center, elytra pitted and ridged, prefers black locust– adults do etching while larvae blotch mines

Answer 1

Chrysomelidae: Locust Leaf Miner

Question 2

oval shaped body, 1/2”, coppery-brown elytra, metallic green body, row of white spots along each side of the abdomen – Adults do skeletonization

Answer 2

Scarabaeidae: Japanese Beetle

Question 3

tapered body, flat headed borer, 3/8-1/2” long, blue/green metallic color – larval damage is galleries (dieback) and branch dieback, root suckers emerging (ash feeder)

Answer 3

Buprestidae: Emerald Ash Borer

Question 4

tapered body, 3/8” long, gray/black metallic copper color – larvae make wide galleries that circle the trunk, branch dieback (birch feeders)

Answer 4

Buprestidae: Bronze Birch Borer

Question 5

black with yellow stripes, reddish/brown legs, black/brown antennae

Answer 5

Cerambycidae: Locust Borer

Question 6

glossy black body with irregular white spots, alternating black and white bands on antennae, round headed borers - larvae make wide galleries under the bark, sawdust with frass, circular exit holes, and branch/canopy dieback

Answer 6

Cerambycidae: Asian Longhorned Beetle

Question 7

oblong oval body, 3/8”, gray/black body, elytra covered in pits and patches of yellow hairs - adults: margins notched; larvae: girdling feeding on roots

Answer 7

Curculionidae: Black Vine Weevil

Question 8

pear shaped, short, blunt snout, body covered in brown and gray scales that form bands across elytra - adults: margins notched

Answer 8

Curculionidae: Two-Banded Japanese Weevil

Question 9

oblong oval body, 1/4”, rust colored, patches of brown and white on elytra, 2 white scales that come together on the wings - Shepard’s Crook on leader of pine trees, small and round exit holes, shoot dieback

Answer 9

Curculionidae: White Pine Weevil

Question 10

2-3mm long, dark red/brown, shiny, spines on underside of the abdomen - Adults: boring into and feeding on bark, branch dieback, dutch elm disease; Larvae: galleries with thick straight line with branching

Answer 10

Curculionidae; Scolytinae - Smaller European Elm Bark Beetle

Question 11

1.5-3mm, head completely hidden by pronotum, granulate textured anterior end of elytra

Answer 11

Curculionidae; Scolytinae - Granulate Ambrosia Beetle