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Flea legs end in strong claws that are adapted to grasp a host. [1] Unlike other insects, fleas do not possess compound eyes but instead only have simple eyespots with a single biconvex lens; some species lack eyes altogether. [2] Their bodies are laterally compressed, permitting easy movement through the hairs or feathers on the host's body.
They are one of the largest representatives of flea beetles and with Podontia lutea adults being around 2 centimeters long, it is reputed that it is the largest flea beetle species in the world. [3] They are distinguished from other genera in the Blepharida-group by their bifurcate prosternum, saddle-shaped mesosternum and strongly inwardly ...
Its claw has a "distinct basal projection." [3] Hectopsylla pulex (Haller, 1880) In the United States, H. pulex has been found on the lesser long-nosed bat Leptonycteris yerbabuenae in Cochise County, Arizona. [6] H. pulex is also referred to by the common name "chiggerflea" or "chigger flea". [13] Hectopsylla stomis (Jordan, 1925)
The human flea (Pulex irritans) – once also called the house flea [1] – is a cosmopolitan flea species that has, in spite of the common name, a wide host spectrum. It is one of six species in the genus Pulex ; the other five are all confined to the Nearctic and Neotropical realms . [ 2 ]
Daphnia magna is a typical water flea of the genus Daphnia. The females reach up to 5 mm in size, the males about 2 mm, thus they are among the largest species in the genus. [ 2 ] The body is protected by a translucent carapace made of chitin , a transparent polysaccharide. [ 3 ]
Insect morphology is the study and description of the physical form of insects.The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history.
A domestic cat's retractable claw in protracted position. A claw is a curved, pointed appendage found at the end of a toe or finger in most amniotes (mammals, reptiles, birds). Some invertebrates such as beetles and spiders have somewhat similar fine, hooked structures at the end of the leg or tarsus for gripping a surface as they walk.
Pulicidae feed on mammalian blood. Ctenocephalides felis felis is also known as the cat flea, and is an extremely important parasite of domestic cats and dogs. They prefer to feed on areas round the head and neck of a cat, rather than the ventral part of the body. [4]