solitárias

Solitárias is a term that can refer to several things, most commonly tapeworms in the class Cestoda. These are parasitic flatworms that live in the digestive tract of vertebrates. Tapeworms have a segmented body, with a head (scolex) that attaches to the host's intestinal wall and a series of segments called proglottids, which contain reproductive organs. As tapeworms mature, these proglottids detach and are passed in the host's feces. Infection in humans can occur through consuming undercooked meat or contaminated food and water. Symptoms vary widely depending on the tapeworm species and the location and number of parasites, but can include abdominal pain, nausea, weight loss, and fatigue. Diagnosis is typically made through stool examination. Treatment usually involves antiparasitic medication.

The term "solitárias" can also, less commonly, refer to solitary bees, which are a diverse group of bees that do not live in colonies. Unlike honeybees or bumblebees, solitary bees live alone, with each female constructing and provisioning her own nest, typically in the ground or in cavities. They are important pollinators, contributing significantly to both wild plant reproduction and agricultural crops. Examples of solitary bees include mason bees, leafcutter bees, and carpenter bees. They are generally docile and rarely sting unless provoked.