MODULE 2 INTRODUCTION TO PARASITIC ARTHROPODS Flashcards
composed of protein and is covered by a waxy layer
epicuticle
layers of cuticle
epicuticle, exocuticle, endocuticle
tanned for extra strength (sclerotised)
exocuticle
this is a protein and polysaccharide of cuticles called “_______”
chitin
composed of protein and polysaccharide called “chitin”
endocuticle
two categories of outgrowth
- microtrichiae
- macrotrichiae
fine foldings of outer layer of cuticle
microtrichiae
articulated outgrowths such as setae
macrotrichiae
valve between foregut and midgut
proventriculus
also called “stigmata” in arachnids; a small circular opening in the exoskeleton of insects
spiracle
concerned primarily with the ingestions and storage of food
stomodeum or foregut
principal site of digestion and absorption; secretes enzyme
midgut or mesenteron
important in absorption of water and formation of feces
hindgut or proctodeum
encloses the sperm and protects it during insemination
spermatophore
site where the female stores the sperm of the male
spermathecae
spaces full of blood
hemolymph
respiratory organ of spiders is called?
lung book
respiratory organ of crabs is called?
gill books
classes under Phylum Arthropoda
Insecta
Arachnida
Crustacea
Myriapoda
Pentastomida
how many pair of legs does class insecta have?
3
what is the class wherein the body segment is divided into three (head, thorax, and abdomen)
Insecta
head and thorax fused to form the cephalothorax
arachnida
head and thorax fused
crustacea
body is found divided into numerous segments
myriapoda
worm-like animals
pentastomida
slender pad-like cushions
pulvillus
appendage between pulvillus associated with claws in the Order Diptera
empodium
pad-like appendage between the claws of Orthopteran insects
arolium
age and form of insect during stadium
instar
interval between ecdysis
instar
emergence of insect from old skin
exuvia or moulting or ecdysis
life cycle in which the hatched insect is a miniature of its parents
egg-nymph-imago or young adult
hemimetabolous
hatched inset differs morphologically from parent
egg-larva-pupa-imago or young adult
holometabolous