Hemlock Woolly Adelgid vs Lac Insect

Side-by-side species comparison

Attribute Hemlock Woolly Adelgid Lac Insect
Scientific Name Adelges tsugae Kerria lacca
Order Hemiptera Hemiptera
Family Adelgidae Kerriidae
Size 0.8-1.5 mm 1-3 mm
Habitat Forests Forests
Diet Sap Feeders Sap Feeders
Regions Asia, North America Asia
Conservation Not Evaluated Least Concern

Hemlock Woolly Adelgid

A devastating invasive pest of eastern hemlock in North America, originally from East Asia. It feeds at the base of needles, killing branches and eventually the tree.

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Did You Know?

It has killed millions of hemlocks from Georgia to Maine since its detection in the 1950s.

Lac Insect

Produces lac resin — the raw material for shellac, used in wood finishes, food glazing, and pharmaceutical coatings. One of the few insects commercially farmed for a secretion.

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Did You Know?

It takes roughly 300,000 lac insects to produce 1 kg of shellac — the coating on your shiny chocolate candy or pharmaceutical pill likely came from these tiny bugs.