What is the insect vector responsible for transmitting tapeworms?

Fleas are the insect vectors responsible for transmitting tapeworms, particularly the species known as Dipylidium caninum, which is commonly found in dogs and cats. When an animal or human accidentally ingests an infected flea, it can lead to the development of tapeworms in the intestinal tract. Fleas serve as an intermediate host for the larvae of these tapeworms, and they become infected after feeding on the feces of an already infected animal. This transmission cycle highlights the crucial role fleas play in the lifecycle of tapeworms, making them the correct answer for the question regarding which insect vector is responsible for this transmission.

Understanding the role of fleas in the transmission of tapeworms illustrates the importance of effective flea control measures in pets to prevent tapeworm infections.