Grain Booklouse vs Cypress Sawfly

Side-by-side species comparison

Attribute Grain Booklouse Cypress Sawfly
Scientific Name Liposcelis bostrychophila Monoctenus juniperi
Order Psocoptera Hymenoptera
Family Liposcelididae Diprionidae
Size 0.7-1.2 mm 6-8 mm
Habitat Gardens Gardens
Diet Fungus Feeders Herbivores
Regions Worldwide Europe
Conservation Least Concern Least Concern

Grain Booklouse

A tiny wingless booklouse that is one of the most common stored-product pests worldwide. It thrives in warm humid environments with starchy materials.

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Did You Know?

It reproduces by parthenogenesis, meaning populations consist entirely of females.

Cypress Sawfly

A small sawfly with pectinate antennae in males whose green larvae feed on juniper and cypress foliage. Heavy infestations can discolor and thin ornamental junipers.

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Did You Know?

This is one of the few diprionid sawflies that feeds on cupressaceous conifers rather than the more typical pine or spruce hosts.