Chapter 11 Entomology Vocab

Accumulated Degree Hours (ADH)

number of hours at an adjusted average temperature it takes for an insect species to develop to a given stage

Complete Metamorphosis

Body development in four stages: egg, larva, pupa, and adult

Crop

a digestive organ used for the storage of food

Entomology

Study of insects and related arthropods

Exoskeleton

the external skeleton of an animal, such as an insect that protects and supports the body

Forensic Entomology

Application of entomology to civil and criminal cases

Grubs

wormlike beetle larva

Insect Succession

A predictable sequence of changing species that inhabit a decomposing body

Instars

Each of the 3 different larval stages of flies in species that undergo complete metamorphosis

Larva

wormlike stage of insect development after egg

Maggots

Wormlike fly larva

Oviposition

decomposing or laying of eggs

Ptilium

A fluid-filled structure in the head of a Blowfly used to open the pupal case

Pupa

nonfeeding stage of development between larva and adult

Spiracles

Respiratory organs of insects that are used by researchers to identify a larval stage as first, second, or third instar

Postmortem Interval (PMI)

The time between death and the discovery of a body