35a
(34b). Head as wide as or wider than
prothorax; mouthparts mandibulate; parasites of birds
(with
2 tarsal claws) and mammals (with 1 small tarsal claw) (Figs.A-D)
……………………………………………………………...............……….[chewing lice] Mallophaga
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A B C D
35b. Head usually more narrow than prothorax;
mouthparts haustellate (= for
sucking);
parasites of
mammals with 1 large tarsal claw (Figs.A-B) [sucking
lice]……........……..…. Anoplura
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A B
