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"Aphaniptera includes the fleas, which, despite their minuteness, have made themselves a name in the world. The arterial covering is a horny compound of very distinct segmentsl the wings are four, but nearly rudimentary; the suctional organs consist of a pair of fine, serrated, sword-shaped mandibles, provided with a sharp, needle-like spear for penetrating the skin of the victim." — Goodrich, 1859

Flea

"Aphaniptera includes the fleas, which, despite their minuteness, have made themselves a name in the…