1. TRICHOPTERA
LEPIDOPTERA

2. "lepido" = scale + "ptera" = wings
LEPIDOPTERA
(Butterflies / Moths)
"lepido" = scale + "ptera" = wings
1. Siphoning mouthparts form a coiled tube (proboscis) beneath the head
2. Antennal type: vary, e.g. clubbed, filiform, plumose…
3. Front wings large, triangular; hind wings large, fan-shaped
4. Body and wings covered with small, overlapping scales

3. Lepidoptera is the second largest order in the class Insecta
Holometabolous
(complete metamorphosis)

4. Most Lepidoptera larvae are herbivores
Foliage feeders
Stems and roots
Leaf miners
Most Lepidoptera adults are herbivores
Nectar
Pollen
Some do not feed

5. How can you distinguish a butterfly
from a moth?
Butterflies
- brightly colored
- long capitate antennae
- diurnal
- fold the wings vertical over back
Moths
- drab in appearance
- antennae thread-like/feathery
- nocturnal
- fold the wings flat over back

6. Economic Importance Although many Lepidoptera
are valued for their beauty…
A few are useful in commerce
(e.g., the silkworm)
Lepidoptera larvae are probably more destructive to agricultural crops and forest trees than any other group of insects.

7. Families Milkweed/Monarch Butterflies Swallowtail Butterflies
White/Sulfur Butterflies
Brushfooted Butterflies
Sphinx/Hawk Moths
Noctuid Moths
Snout/Grass Moths

8. Milkweed or Monarch Butterflies
Antennae w-out scales
Distal cell on hind wing
closed by a well
developed vein
Front legs reduced

9. Swallowtail Butterflies
Large
Often have tail-like
elongation on rear
edge of hind wing

10. White and Sulfur Butterflies
Typically bright white, yellow or orange in color
Black markings on wings

11. Brushfooted Butterflies
Front wings broad and triangular
Greatly reduced front legs
Largest butterfly family

12. vs.
Monarch
Viceroy
Notice vein crossing cells of hind wing

13. Sphinx & Hawk Moths Hind wings reduced Spindle shaped
Thickened Antennae

14. Noctuid Moths Narrowed front wings Hind wings broadened
and rounded, some brightly colored
Antennae threadlike

15. Snout and Grass Moths Small
Wings ‘roll’ around abdomen or are held flat
Labial palps form ‘snout’ in front of head

16. TRICHOPTERA Caddisflies 1.Filiform antennae
2.Chewing mouthparts reduced or vestigial
3.Two pairs of wings clothed with long hairs
4.Wings held tent-like over the abdomen

17. TRICHOPTERA

18. Holometabolous (complete metamorphosis) (egg,larva,pupa,adult)

19. Where do Trichopterans live?
During the day, the adults hide in cool, moist environments such as the vegetation along river banks
Caddisfly larvae live in aquatic habitats

20. What do Trichopterans eat?
Adults have reduced
or vestigial mouthparts
Most adults do not feed and are relatively short-lived
Immatures may be herbivores, scavengers, or predators

21. Larval Cases

22. Economic Importance
Caddisfly larvae may serve as food for fish and other aquatic vertebrates
Fishermen often gather them for use as bait for trout and other game fish
Although a few species have been recorded as pests in rice paddies, most caddisflies have very little economic importance