Language selection

Government of Canada / Gouvernement du Canada

Search

Insect care instructions, biology information and photos

Cabbage looper (Trichoplusia ni)

Egg
Cabbage looper eggs

Trichoplusia ni eggs

 
Instars 1-2
A cabbage looper in the first stage of development for larva

Trichoplusia ni 1st instar

A cabbage looper in the second stage of development for larva

Trichoplusia ni 2nd instar

 
Instars 3-5
A cabbage looper in the third stage of development for larva

Trichoplusia ni 3rd instar

A cabbage looper in the fourth stage of development for larva

Trichoplusia ni 4th instar

A cabbage looper in the fifth stage of development for larva

Trichoplusia ni 5th instar

 
Larva
A cabbage looper larva

Trichoplusia ni larva

A cabbage looper larva

Trichoplusia ni larva

 
 

Forest tent caterpillar (Malacosoma disstria)

Egg
A close-up photo of the eggs of a forest tent caterpillar

Malacosoma disstria eggs

The eggs of a forest tent caterpillar on a branch

Malacosoma disstria eggs

 
Larva
A single forest tent caterpillar larva on a leaf

Malacosoma disstria larva

Another forest tent caterpillar larva on a leaf

Malacosoma disstria larva

Several forest tent caterpillar larvae on several leaves

Malacosoma disstria larvae

Several forest tent caterpillar on a coniferous tree

Malacosoma disstria larvae

 
Tent
An image of the forest tent caterpillar’s tent on a coniferous tree

Malacosoma disstria tent

 
Adult
A single adult moth

Malacosoma disstria adult

Several adult moths on a telephone pole

Malacosoma disstria adults

 
 

Spruce budworm (Choristoneura fumiferana), diapause strain

Egg
A birds-eye view of a spruce budworm egg

Choristoneura fumiferana egg mass

A sideways look at a spruce budworm egg

Choristoneura fumiferana egg masses

 
Instars 1-2
spruce budworm eggs hatching

Blackheaded Choristoneura fumiferana eggs and hatching 1st instar larvae

spruce budworm eggs hatching.

Blackheaded Choristoneura fumiferana eggs and hatching 1st instar larvae

Second stage of development for a spruce budworm larva

2nd instar Choritoneura fumiferana mining needle

Second stage of development for a spruce budworm larva.

2nd Instar Choristoneura fumiferana overwintering in old flower bract

 
Instars 3-4
The third stage of development for spruce budworm larvae

3rd instar Choristoneura fumiferana developing shoot

A moulting third stage spruce budworm larva

Moulting 3rd instar Choristoneura fumiferana

The fourth stage of development for spruce budworm larvae

4th Instar Choristoneura fumiferana on expanding balsam fir shoot

 
Instars 5-6
Three fifth-stage spruce budworm larvae beside a ruler measuring the length at about 5 millimetres

5th Instar Choristoneura fumiferana

A spruce budworm larva at the sixth stage of development

6th instar Choristoneura fumiferana

A spruce budworm eating the new growth of a balsam fir tree

Choristoneura fumiferana on eaten Balsam Fir shoot

A spruce budworm beside a parasitic fly

Choristoneura fumiferana and parasitic fly

A mature spruce budworm

Choristoneura fumiferana

 
Pupa
A female pupa of a spruce budworm

Choristoneura fumiferana female pupa

Spruce budworm larvae at the sixth stage of development

6th instar Choristoneura fumiferana

Spruce budworm on eaten balsam fir new growth

Choristoneura fumiferana on eaten Balsam Fir shoot

 
Moth
Adult spruce budworm moths beside new egg masses on balsam fir branches

Choristoneura fumiferana adults and egg masses

Adult spruce budworm moths beside new egg masses on balsam fir branches

Choristoneura fumiferana adults and egg masses

Spruce budworms mating

Mating Choristoneura fumiferana

 
 

Western spruce budworm (Choristoneura occidentalis)

Egg
A western spruce budworm egg mass beside a ruler measuring about 5millimetres

Choristoneura occidentalis egg mass

 
Instars 1-2
A single western spruce budworm first stage larva beside a ruler measuring about 1 millimetre

Choristoneura occidentalis 1st instar

A single western spruce budworm second stage larva beside a ruler measuring about 3 millimetres

Choristoneura occidentalis 2nd instar

 
Instars 3-4
A single western spruce budworm third stage larva beside a ruler measuring about 5 millimetres

Choristoneura occidentalis 3rd instar

A single western spruce budworm fourth stage larva

Choristoneura occidentalis 4th instar

 
Instars 5-7
Three western spruce budworms fifth stage larvae

Choristoneura occidentalis 5th instar

A western spruce budworm sixth stage larva beside a ruler measuring about 1.3 centimetres

Choristoneura occidentalis 6th instar

A western spruce budworm seventh and final stage larva beside a ruler measuring about 2 centimetres

Choristoneura occidentalis 7th instar

 
Pupa
A female western spruce budworm pupa beside a ruler measuring about 1.5 centimetres

Choristoneura occidentalis female pupa

A male western spruce budworm pupa beside a ruler measuring about 1.5 centimetres

Choristoneura occidentalis male pupa

 
Moth
Two female western spruce budworm moths beside a ruler measuring about 1.3 centimetres

Choristoneura occidentalis females

Two male western spruce budworm moths

Choristoneura occidentalis males

 
 

Page details

Date modified: