Ichneumon Wasp vs California Timema

Side-by-side species comparison

Attribute Ichneumon Wasp California Timema
Scientific Name Megarhyssa macrurus Timema californicum
Order Hymenoptera Phasmatodea
Family Ichneumonidae Timematidae
Size 25-50 mm body plus 100+ mm ovipositor 1.5-2.5 cm
Habitat Woodlands Woodlands
Diet Parasitoids Herbivores
Regions North America United States (California)
Conservation Least Concern Least Concern

Ichneumon Wasp

A large parasitoid wasp with an extremely long, thread-like ovipositor that can exceed the length of its body. Females drill through solid wood to reach their host larvae deep inside.

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Did You Know?

The female can somehow detect horntail larvae vibrations through several centimeters of solid wood and then drill her flexible ovipositor to reach them with remarkable accuracy.

California Timema

A small green walking stick endemic to California. It is one of the most widespread Timema species on the Pacific coast.

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Did You Know?

The entire genus Timema is restricted to western North America and represents the most ancient lineage of living stick insects.