Arthropoda Classes Lecture PDF

9/18/24 Characters of Phylum Arthropoda Segmented body Sclerotized exoskeleton Paired joined appendages Bilateral symmetry Body cavity Division of gut Dorsal blood vessel Ventral nervous system Striated muscles 5...

9/18/24 Characters of Phylum Arthropoda Segmented body Sclerotized exoskeleton Paired joined appendages Bilateral symmetry Body cavity Division of gut Dorsal blood vessel Ventral nervous system Striated muscles 5 Classes of Phylum Arthropoda Class Onychophora: It include Peripatus, etc. 6 1  9/18/24 Classes of Phylum Arthropoda Class Chilopoda: It include centipedes or hundred-legged worms, etc. 7 Classes of Phylum Arthropoda Class Diplopoda: It includes millipedes or thousand-legged worms. 8 2  9/18/24 Classes of Phylum Arthropoda Class Symphyla: It includes symphylans. 9 Classes of Phylum Arthropoda Class Pauropoda: It includes pauropods. 10 3  9/18/24 Classes of Phylum Arthropoda Class Crustacea: It includes crayfish, crabs, prawns, lobster, barnacles etc. 11 Classes of Phylum Arthropoda Class Arachnida: It includes scorpions, spiders, ticks and mites. 12 4  9/18/24 Classes of Phylum Arthropoda Class Insecta (Hexapoda): It includes grasshoppers, bugs, butterflies, house flies, wasps and beetles, etc. 13 Definition of Insect An tracheate arthropod member (of class insecta) with body divided into three regions i.e. head bearing a pair of antennae , a pair of compound eyes and mouthparts; thorax bearing three pairs of legs and usually two pairs of wings; and abdomen that bears genitalia. 14 5  9/18/24 Basic insect body plan Head Thorax Abdomen 15 Basic insect body plan 16 6  9/18/24 Can you name some different types of insects? 17 Are these insects? © Marlin E. Rice 18 7