American Xyelid Sawfly vs Four-toothed Mason Wasp

Side-by-side species comparison

Attribute American Xyelid Sawfly Four-toothed Mason Wasp
Scientific Name Xyela bakeri Monobia quadridens
Order Hymenoptera Hymenoptera
Family Xyelidae Vespidae
Size 3-5 mm 16-19 mm
Habitat Ponds & Lakes Woodlands
Diet Pollen Feeders Nectar Feeders
Regions Western North America Eastern North America
Conservation Least Concern Least Concern

American Xyelid Sawfly

A minute primitive sawfly native to western North America with the family's characteristic elongated third antennal segment. Adults appear in early spring.

💡

Did You Know?

Despite being among the most primitive Hymenoptera, xyelid sawflies are highly specialized in their larval diet, feeding exclusively on pine pollen.

Four-toothed Mason Wasp

A solitary black and white mason wasp that nests in hollow stems and old carpenter bee tunnels. It provisions cells with paralyzed moth caterpillars.

💡

Did You Know?

It divides its nest tunnel into multiple cells using mud partitions, each containing one egg.