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Order Thysanura Thysanura (head) eye • antennae prominent • eyes reduced or absent • ocelli usually absent condyle 1 • mouthparts ectognathous • mandibles dicondylic condyle 2 Thysanura (thorax) • thorax depressed • wings absent •legs cursorial • tarsi 2-5 segmented • coxae without styli Thysanura (abdomen) • 10 segmented • styli usually present • exsertile vesicles sometimes present • median caudal filament present • cerci present coxa + sternite stylus cercus median caudal filament exsertile vesicles Thysanura (abdomen) cercus median caudal filament gonapophysis 8 gonapophysis 9 gonocoxite 8 gonocoxite 9 female ovipositor structures Thysanura (biology/ecology) Thysanura (fauna) World Fauna • 4 families • ca. 370 species North American Fauna • 3 families • Lepidotrichidae • Nicoletiidae (lab) • Lepismatidae (lab) • ca. 20 species Thysanura : Nicoletiidae Atelurinae Nicoletiinae Thysanura : Lepismatidae firebrat silverfish Order Thysanura FINIS Thysanura •oooo – oooo •oooo – oooo •oooo – oooo •oooo (oooo) – oooo •oooo – oooo •oooo – oooo •oooo – oooo Thysanura •oooo – oooo •oooo – oooo •oooo – oooo •oooo (oooo) – oooo •oooo – oooo •oooo – oooo •oooo – oooo Thysanura •oooo – oooo •oooo – oooo •oooo – oooo •oooo (oooo) – oooo •oooo – oooo •oooo – oooo •oooo – oooo Order Thysanura Order Thysanura ooooo ooooo ooooo ooooo Order Thysanura