HEMIPTEROID ORDERS PSOCOPTERA PHTHIRAPTERA THYSANOPTERA

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Presentation transcript:

HEMIPTEROID ORDERS PSOCOPTERA PHTHIRAPTERA THYSANOPTERA (booklice, bark lice) PHTHIRAPTERA (lice) THYSANOPTERA (thrips)

Hexapoda Insecta Pterygota Neoptera Holometabola Apterygotes Entognatha Archaeognatha Hexapoda Zygentoma = Thysanura Ephemeroptera Insecta Odonata Plecoptera Embiodea Pterygota Zoraptera Dermaptera Grylloblattodea ? Mantophasmatodea Orthoptera Phasmatodea Blattaria Isoptera Mantodea Neoptera Psocoptera Phthiraptera Thysanoptera Hemiptera Coleoptera Rhaphidioptera Megaloptera Neuroptera Hymenoptera Holometabola Mecoptera Siphonaptera Diptera Apterygotes Strepsiptera Trichoptera Paleoptera Lepidoptera Hemimetabolous Holometabolous

Both mandibles modified HEMIPTEROID CLASSIFICATION Parasitic Phthiraptera - lice Mandibles present Lacinia - a rod Free living Psocoptera - book lice Sucking mouthparts Thysanoptera - thrips Right mandible lost Mandibles + lacinia = stylets Hemiptera- true bugs Both mandibles modified

Hexapod Orders Psocoptera Psoco - gnaw, ptera - wings Number of Species 3200 Common names Book lice, bark lice Typical habitats leaf litter, under stones, under bark only modification of mouthparts Lacinia is a rod Distinguishing characteristics -eat any organic material -damage stored material - books, specimens Other features

Psocoptera - Bark Lice

Psocoptera - Damage

Hexapod Orders Phthiraptera Phthir - louse, aptera - wingless Number of Species 5,500 Common names Lice Typical habitats Ectoparasites of birds and mammals Distinguishing characteristics -wingless -modified fore tarsi Other features Reduced sense organs -sucking & biting forms

Classification of lice Classification schemes have been: Order - Mallophaga - biting and chewing lice Order - Siphunculata - sucking lice Order - Phthiraptera Suborder - Mallophaga Suborder - Siphunculata Order - Phthiraptera Suborder - Amblycera Suborder - Ischnocera Suborder - Anoplura Suborder - Rhynchophthirina

Classification of lice Biting/chewing lice Sucking lice Elephant lice

Amblycera and Ischnocera

Anoplura

Rhychnophthirina

Generalized Life Cycle Eggs (nits) on hair or feathers Adult on host Three nymphal instars

Host Specificity Bird hosts Mammal hosts Rhynchophthirina Ischnocera Amblycera

Among the more famous Anoplura Phthirus pubis -crab lice

Among the more famous Anoplura Head and body lice - Pediculus humanus

Lice Infestation

Hexapod Orders Thysanoptera Thysano - fringed, ptera - wing Number of Species 4500 Common names Thrips Typical habitats Vegetation (flowers) Distinguishing characteristics -fringed wings Other features -haploid/diploid

Thysanoptera Mouthparts a. Labrum b. Mandible c. Food canal d. Maxilla e. Hypopharynx f. Salivary canal g. Labium

Thysanoptera - wings

Thysanoptera - Life cycle

Thysanoptera - Plant Damage