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The adults are roughly 1.5 to 4 mm in length and are laterally flattened. They are dark brown in color, are wingless, and have piercing-sucking mouthparts that aid in feeding on the host's blood. Both genal and pronotal combs are absent and the adult flea has a rounded head. Most fleas are distributed in the egg, larval, or pupal stages.
The infected fleas feed on rodent vectors of this bacterium, such as the black rat, Rattus rattus, and then infect human populations with the plague, as has happened repeatedly from ancient times, as in the Plague of Justinian in 541–542. [46] Outbreaks killed up to 200 million people across Europe between 1346 and 1671. [47]
Media in category "Images of butterflies and moths" This category contains only the following file. Plate II Kallima butterfly from Animal Coloration by Frank Evers Beddard 1892.jpg 1,695 × 2,722; 1.77 MB
Although fleas cannot fly, they have developed powerful legs and are famous for being able to jump quite high in proportion to their tiny bodies — more than 100 times their body length, up to a ...
Lepidoptera (/ ˌ l ɛ p ɪ ˈ d ɒ p t ər ə / LEP-ih-DOP-tər-ə) or lepidopterans is an order of winged insects which includes butterflies and moths.About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organisms, [1] [2] making it the second largest insect order (behind Coleoptera) with 126 families [3] and 46 superfamilies ...
Photographic and light microscopic images: Zoomed-out view of an Aglais io. Closeup of the scales of the same specimen. High magnification of the coloured scales (probably a different species). Electron microscopic images: A patch of wing: Scales close up: A single scale: Microstructure of a scale: Magnification: Approx. ×50 Approx. ×200 × ...
Pages in category "Fleas" The following 27 pages are in this category, out of 27 total. This list may not reflect recent changes. ...
Selena Gomez. Selena Gomez just proved Rare Beauty's power with a simple set of selfies.. Ahead of Christmas, the 31-year-old singer and actress gifted fans a series of sweet selfies showing off ...