Xestia praevia (J.B. Smith)
Damage, symptoms and biologyXestia praevia is a common innocuous solitary defoliator.
Mature larva up to 27 mm long. This species has two distinct colour morphs. The more common green morph has a green head with black spots. The body is green, with white middorsal and subdorsal stripes and a broad greenish white spiracular stripe. The less common brown morph has a creamy brown head with black bars on the vertices and black netting. The body is brown, with broken greyish middorsal and subdorsal stripes and a broad brownish white spiracular stripe.
This species probably overwinters as a partly grown larva. Larvae are present from May to early July, pupation occurs in July and adults emerge from July to August.
Canadian Forest Service Publications
Diet and feeding behaviour
: Feeds on the leaves of plants.
- Free-living defoliator: Feeds on and moves about freely on foliage.
Information on host(s)
The principal host of Xestia praevia is ponderosa pine.