Similarly, the mouthparts of Siphonaptera, some Diptera and Thysanoptera superficially resemble the rostrum of the Hemiptera, but on closer inspection the differences are considerable.
12.
Siphonaptera is a relatively small order of insects : members of the order undergo complete metamorphosis and are secondarily wingless ( their ancestors had wings which modern forms have lost ).
13.
The fleas on birds are thought to have originated from mammalian fleas; at least sixteen separate groups of fleas switched to avian hosts during the evolutionary history of the Siphonaptera.
14.
The Boreidae are the sister clade to the Siphonaptera, so " Mecoptera " is paraphyletic, but there is a clade that contains both Mecoptera and Siphonaptera, with about 3000 known species.
15.
The Boreidae are the sister clade to the Siphonaptera, so " Mecoptera " is paraphyletic, but there is a clade that contains both Mecoptera and Siphonaptera, with about 3000 known species.
16.
Ecto-and endoparasites have been reported to include trematodes, cestodes, nematodes, acanthocephalans, lice ( Anoplura ), fleas ( Siphonaptera ), Diptera, and ticks and mites ( Acari ).
17.
The Endopterygota are sometimes divided into three assemblages : Neuropteroida ( Neuroptera, Megaloptera, Raphidioptera, and Coleoptera ), Hymenopteroida ( Hymenoptera ), and Panorpoida ( Siphonaptera, Diptera, Trichoptera, Lepidoptera, Strepsiptera, and Mecoptera ).
18.
Diptera is widely thought to be a member of Mecopterida, along with Lepidoptera ( butterflies and moths ), Trichoptera ( caddisflies ), Siphonaptera ( fleas ), Mecoptera ( scorpionflies ) and possibly Strepsiptera ( twisted-wing flies ).
19.
Using what was probably the world's most complete collection of fleas of about 260, 000 specimens ( representing some 73 % of the 2, 587 species and subspecies so far described ), he described around 500 species and subspecies of Siphonaptera.
20.
This led to him illustrating, with over 1000 drawings, " An Illustrated Catalogue of the Rothschild Collection of Fleas ( Siphonaptera ) in the British Museum ( Natural History ) ", an enormous work of 5 large volumes published between 1953 and 1971.
