Entomology External Anatomy

Sclerites

hard plates

Sutures

soft breaks between sclerites

The cuticle is made up mostly of what macromolecule?

proteins

Resilin

protein in cuticle that helps create elasticity

Arthropodins

proteins in cuticle that harden it after quinone tanning

Modification of epicuticle for water retention

waxy layer

Procuticle is made up of

chitin

exocuticle is primarily the __

sclerites

Endocuticle function

connects scleritesWh

which layer of the procuticle is resorbed in molting?

endocuticle

Epidermis function

secretes cuticle

Order layers of cuticle from outermost to innermost

Epicuticle, Procuticle (exocuticle, endocuticle), Epidermis

Vestiture

accessories on exoskeleton

Setae

hair-like vestiture

Tormogen cell

cell that produces the socket for setae

Trichogen cell

cell that produces the seta

All setae are connected to a ____ cell

nerve cel

Spines

rigid, multicellular vestiture

Spurs

moveable vestiture

Apodemes is also known as

endoskeletonAp

Apophysis

peg-like pit in endoskeletonP

Phragma

ditch-like pit in endoskeleton

Metamere

body segmentTa

Tagmosis

fusion of body segments

Podite

feet on metameres

The head is made up of _____ metameres

4-7T

The thorax is made up of ______ metameres

3Th

The abdomen is made up of ____ metameres

11

Function of head tagma

sensory input and feeding

Sensory components of head

2 compound eyes, 0-3 ocelli, 2 antennaeW

Why are insect eyes called compound?

they have multiple lenses

Scape

first segment of antennae

Pedicel

second segment of antennae

Flagellum

remaining segments of antennae

Filiform

thread-like antennaeM

Moniliform

beaded antennae

Serrate

saw toothed antennae

Setaceous

hairy antennae

Lamellate

nested plates on antennae

Pectinate

comb-like antennae

Plumose

long hairy antennae

Clavate

gradually clubbed antennae

Geniculate

elbowed antennae

Aristate

pouch like antennae with one bristlec

capitate

abruptly clubbed antennae

What are the 3 most important metameres of the mouth?

maxillae, mandibles, and labium

epicuticle

exocuticle

endocuticle

epidermis

basement membrane

tormogen cell

trichogen cell

spine

spur

seta

phragma

apophysis

compound eyes

ocelli

antennae

scape

pedicel

flagellum

mandible

maxillae

labium

prothorax

mesothorax

metathorax

trochanter

coxa

femur

tibia

tarsus

costa

subcosta

Radius 1

radius 2 + 3

radius 4

radius 5

media

media 1

media 2

media 3

media 4

cubitus