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Bed bugs, which reproduce solely by traumatic insemination, have evolved a pair of sperm-receptacles, known as the spermalege. It has been suggested that the spermalege reduces the direct damage to the female bed bug during traumatic insemination.
The spermalege (also known as the organ of Berlese [1]) is a special-purpose organ found in female bed bugs that appears to have evolved to mitigate the effects of traumatic insemination. [2] The spermalege has two embryologically distinct parts, known as the ectospermalege and mesospermalege. [3]
Female common bed bugs can lay 1–10 eggs per day and 200–500 eggs in their lifetime, whereas female tropical bed bugs can lay about 50 eggs in their lifetime. [8] Bed bugs have five immature nymph life stages and a final sexually mature adult stage. [19] Bed bugs need at least one blood meal in order to advance to the next stage of ...
Traumatic insemination is, somehow, even worse than it sounds. Female bed bugs actually evolved a reproductive tract, but males don’t do anything so pedestrian as push a penis in there. Oh no.
Original - Traumatic insemination, seen here in the bedbug Cimex lectularius, is the insertion of sperm into the female by breaking through the carapace of the abdomen and injecting the sperm inside. This makes the male's reproduction more efficient; however, the threat of infection and necessity of healing decreases the female's life expectancy.
How long do bed bugs live? According to Jones, bed bugs started making a comeback in the late 1990s for a variety of reasons. A spike in international travel combined with a change in the ...
Traumatic insemination describes the male's tactics of piercing a female and depositing sperm in order to ensure paternity success. Traumatic insemination in this sense incorporates species which display extra-genitalic traumatic insemination. [31] Males have a needle-like intromittent organ. Examples include bed bugs, bat bugs and spiders.
Bed bugs don’t have the ability to leap or fly, so to get close to their food source they hitch a ride on us and our belongings. Bed bugs don’t have the ability to leap or fly, so to get close ...
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