MECOPTERA (scorpionflies) SIPHONAPTERA (fleas).

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Presentation transcript:

MECOPTERA (scorpionflies) SIPHONAPTERA (fleas)

So far in classification Exopterygota Head with gula Neuropteroid Orders mandibulate Hymenoptera Diptera Neoptera 2 Wings larvae without legs 4 Mecoptera Head without gula Siphonaptera No wings rostrate - Lepidoptera Wings with scales Mecopteroid orders larvae with legs - Trichoptera Wings with hairs

Hexapod Orders Mecoptera Mecos - long, ptera - wing Number of Species 500 Common names Scorpionflies Typical habitats Forests Distinguishing characteristics -mouthparts on a snout -swollen terminal segment with ‘stinger’ Other features

Hexapod Orders Siphonaptera Siphon - tube, aptera - wingless Number of Species 2,400 Common names Fleas Typical habitats Ectoparasites of birds and mammals Distinguishing characteristics -wingless -parasites -siphoning mouthparts -jumping legs Other features

Fleas - Distinguishing Features Wingless Sucking mouthparts Antennae retractible Jumping legs

Fleas - Life Cycle Pupal stage lasts ~ 7 days Larva feeds on organic matter for ~24 days Natural habitat Eggs hatch in ~ 4 days Adult Eggs drop off host

Flea Numbers

Fleas - Disease Transmission Bubonic Plague (Black Death)

Fleas - Disease Transmission Yerstis pestis

Fleas - Disease Transmission

Fleas - Disease Transmission