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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.
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.
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]
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.
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Bed Bug Bites. What they look like: Often confused with mosquito bites, bed bug bites are small, red, puffy bumps that appear in lines or clusters, usually three or more. They can have distinct ...
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 ...
20 Common Bug Bites (With Photos and Symptom Descriptions) 1. Tick bites ... "Don't let the bed bugs bite" is a sweet way to say good night. When bed bugs do bite? It can feel rather nightmarish. Dr.