Dusky Birch Sawfly vs Bark Cockroach

Side-by-side species comparison

Attribute Dusky Birch Sawfly Bark Cockroach
Scientific Name Croesus latitarsus Laxta granicollis
Order Hymenoptera Blattodea
Family Tenthredinidae Blaberidae
Size 8-10 mm 20-30 mm
Habitat Woodlands Woodlands
Diet Herbivores Wood Feeders
Regions North America Oceania
Conservation Least Concern Least Concern

Dusky Birch Sawfly

A medium-sized sawfly with an orange abdomen and black head and thorax. Larvae are yellowish-green with dark spots and feed in rows along the edges of birch leaves.

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Did You Know?

The larvae feed in a distinctive edge-to-edge pattern, consuming the leaf blade while leaving the midrib intact like a fishbone.

Bark Cockroach

A flat oval cockroach that lives exclusively under eucalyptus bark.

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Did You Know?

Its extremely flat body allows it to squeeze into bark crevices just one millimeter wide.