Zoology Lab 9 Arthropoda II

Characteristics of Phylum Arthropoda

A durable polysaccharide cuticle called chitin

A hardened exoskeleton

Fused segments of body/ functional regions called tagma

Specialized appendages

Characteristics of Subphylum Crustacea

Feeding appendages called mandibles, biramous appendages, 2 pairs of antennae

External anatomy of Order Decopoda

2 pairs of antennae, compound eyes, chelipeds, walking legs, swimmerets, carapace, telson

What species belong to Order Decapoda

Shrimp, crayfish, crab, hermit crab

What orders make up Class Malacostraca

Orders Decopoda, Isopoda, Amphipoda

What organisms belong to order Isopoda

Sow bugs and rolly polies

What organisms belong to Order Amphipoda

Scuds and sand fleas

Characteristics of Subphylum Hexapoda

A head with mandibles, thorax with 3 pairs of uniramous appendages , abdomen

Represents Class Insecta

What orders make up Class Insecta, Subphylum Hexapoda

Orders Odonata, Orthopotera, Hemiptera, Coleoptera, Lepidoptera, Diptera, Hymenoptera

Order Odonata

dragonflies, damselflies

Long, slender bodies with two pair of elongate, membranous wings; chewing mouthparts; incomplete metamorphosis

Order Orthopotera

grasshoppers, crickets

Hind pair of legs often modified for jumping; wings, when present, with membraneous hindwings folded underneath thickened forewings; chewing mouthparts; incomplete metamorphosis

Order Hemipatera

true bugs, hoppers, whiteflies, and others

Piercing-sucking mouthparts; wings, when present with membranous hind wings held underneath forewings that may be membranous or partially thickened; incomplete metamorphosis

Order Coleoptera

beetles

Forewings hardened, hindwings membranous and folded underneath forewings; chewing mouthparts; complete metamorphosis

Order Lepidoptera

butterflies, moths

Two pair of large membranous wings covered with scales; mouthparts tubular and coiled underneath head; complete metamorphosis

Order Diptera

flies

Membranous forewings only, hind pair modified into balancing organs; mouthparts piercing-sucking or sponging; complete metamorphosis

Order Hymenoptera

ants, bees, wasps

Two pair of membranous wings coupled together, with hindwings smaller; mouthparts chewing or lapping; female with ovipositor or stinger; complete metamorphosis

What classes make up Subphylum Myriapoda

Classes Chilopoda and Diplopoda

Class Chilopoda

Centipedes

Flattened bodies with single pair of appendages per trunk segment, venom claws used to subdue and kill their prey before using their feeding mandibles

Class Diplopoda

Millipedes

Cylindrical bodies, downward facing mouthparts for feeding on decaying or living plant material, two pairs of legs per trunk segment(hence common class name, “di”)

Identify this structure (1)

Green glands: antennae glands, used to excrete urine and are important for the réabsorption of salts and water

Identify this structure (2)

Gills

What is B

Abdomen

What is C

Walking legs (locomotion)

What is D

Chelipeds (defense)

What is E

Swimmerets (creates water currents and function in reproduction)

What is F

Carapace

What is G

Rostrum

What is H

Antennules (organs of balance, touch, taste)

What is I

Antennae (organs of touch, taste, and smell)

What is 16

Intestine

What is 1

Gastric cecae

What is 8

Crop

What is A

Thorax

What is B

Abdomen

Identify the Species and what Subphylum and Class

Millipedes

Subphylum Myriapoda

Identify the Species and what Subphylum and Class

Centipedes

Subphylum Myriapoda

What Order and Class do these organisms belong to

Order Hymenoptera, Class Insecta

What Order and Class do these organisms belong to

Order Diptera, Class Insecta

What Order and Class do these organisms belong to

Order Lepidoptera, Class Insecta

What Order and Class do these organisms belong to

Order Cloptera, class Insecta

What Order and Class do these organisms belong to

Order Hemiptera, Class Insecta

What Order and Class do these organisms belong to

Order Orthopotera, Class Insecta

What Order and Class do these organisms belong to

Order Odonata

What Order and Class do these organisms belong to

Order Isopoda, Class Malacostraca

What Order and Class do these organisms belong to

Order Isopoda, Class Malacostraca

What Order and Class do these organisms belong to

Order Decapoda, Class Malacostraca