GLOSSARY
- Complete metamorphosis
- a type of insect life cycle where the immature form (larva) does not resemble the adult
- Cotyledon
- the first leaf of a seed plant. It is already formed in the seed but may or may not appear
above ground, depending on the species.
- Crochet
- a tiny hook, as might be found on the bottom of the foot of an insect
- Elliptical
- shaped like a stretched oval
- Fecal
- of or referring to excrement
- Frass
- insect droppings
- Incomplete metamorphosis
- a type of insect life cycle where the immature form (nymph) resembles a small, wingless adult
- Instar
- immature stages of an insect or mite. Each insect or mite
goes through several instars before becoming an adult.
- Larva (pl. larvae)
- immature stage of any insect which practices complete metamorphosis.
Can also be used to describe immature first-stage mites.
- Longitudinal
- along the long axis of an organism or object
- Mesophyll
- the green, photosynthesizing tissue within a leaf
- Molt
- to shed one's exoskeleton in the process of moving to
the next developmental stage (insects). Also used for snakes
shedding their skins and birds their feathers.
- Nymph
- immature stage of any insect which practices incomplete metamorphosis.
Can also be used to describe first stage immature mites.
- Pupa (pl. pupae)
- a nonfeeding developmental stage between larval and adult stages (example: chrysalis of a butterfly)
- Seta (pl. setae)
- sensory structures of insects that resemble small hairs, or hairlike
structures of fungi such as Glomerella.
- Systemic
- able to move or circulate within a plant. Some diseases and pesticides
are systemic.
- Tubercle
- small knob
- Vector
- a plant or animal, often an insect, that carries disease organisms
Last update to this web page on 30 June 1998 by
Judy Bridges.