California Red Scale vs Pale Brown Hawk Moth

Side-by-side species comparison

Attribute California Red Scale Pale Brown Hawk Moth
Scientific Name Aonidiella aurantii Theretra nessus
Order Hemiptera Lepidoptera
Family Diaspididae Sphingidae
Size 1.5-2 mm diameter 55-75 mm
Habitat Orchards Orchards
Diet Herbivores Nectar Feeders
Regions Worldwide citrus-growing regions South Asia, Southeast Asia, Australia
Conservation Not Evaluated Least Concern

California Red Scale

A circular reddish-brown armored scale insect that infests citrus bark, leaves, and fruit. Heavy infestations can kill branches and render fruit unmarketable.

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Did You Know?

The parasitoid wasp Aphytis melinus is mass-reared by the billions to control this scale in California citrus orchards.

Pale Brown Hawk Moth

A sleek hawk moth with uniform brown coloring and darker lateral stripes along the body. It is widespread across tropical Asia and Australasia.

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Did You Know?

Theretra nessus caterpillars undergo dramatic color changes between instars, shifting from green to brown as they mature.