Metellina

Metellina is a genus of spiders belonging to the family Tetragnathidae, commonly known as mesh web weavers. These spiders are distributed across various regions, including Europe, North Africa, and parts of Asia. Members of this genus are characterized by their small to medium size, typically ranging from 4 to 8 millimeters in body length, with a coloration that varies from brown to gray, often featuring distinctive markings that provide camouflage in their natural habitats.

Metellina spiders construct orb-shaped webs often located in shrubs, trees, or man-made structures. They tend to be reclusive, frequently remaining hidden within their webs or among vegetation. The genus includes several species, such as Metellina merianae, Metellina segmentata, and Metellina mimetoides, each exhibiting subtle differences in morphology and habitat preferences.

Identification within the genus is primarily based on detailed examination of reproductive organs, especially the structures of the male palps and the female epigyne. These spiders are generally harmless to humans and play a role as predators of insects, contributing to natural pest control.

Research into Metellina has provided insights into their ecology, web construction behaviors, and evolutionary relationships within Tetragnathidae. Due to their cryptic nature and small size, they are less conspicuous than larger orb-weavers, often requiring close inspection for proper identification. Overall, Metellina represents an interesting group of web-building spiders with a broad geographic distribution and ecological significance.