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Bombyx mori, commonly known as the domestic silk moth, is a moth species belonging to the family Bombycidae. It is the closest relative of Bombyx mandarina, the wild silk moth. Silkworms are the larvae of silk moths. The silkworm is of particular economic value, being a primary producer of silk. The silkworm's preferred food are the leaves of ...
Spider silk structure: crystalline beta-sheets separated by amorphous linkages. Silks have a hierarchical structure. The primary structure is the amino acid sequence of its proteins (), mainly consisting of highly repetitive glycine and alanine blocks, [4] [5] which is why silks are often referred to as a block co-polymer.
Epeira raji (Scopoli, 1763) Araneus marmoreus, commonly called the marbled orbweaver, is a species of spider belonging to the family Araneidae. It is sometimes also called the pumpkin spider from the resemblance of the female's inflated abdomen to an orange pumpkin. [2] It has a Holarctic distribution.
The basal parts of the chelicerae are the two iridescent green mouthparts. The chelicerae (/ kəˈlɪsəriː /) are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as "jaws", chelicerae may be shaped as either articulated fangs, or as a type of pincers.
Spider taxonomy is the part of taxonomy that is concerned with the science of naming, defining and classifying all spiders, members of the Araneae order of the arthropod class Arachnida, which has more than 48,500 described species. [1] However, there are likely many species that have escaped the human eye as well as specimens stored in ...
External anatomy. The underside and head of a female spider. Spiders, unlike insects, have only two main body parts (tagmata) instead of three: a fused head and thorax (called a cephalothorax or prosoma) and an abdomen (also called an opisthosoma). The exception to this rule are the assassin spiders in the family Archaeidae, whose cephalothorax ...
Ancylometes. Ancylometes is a genus of Central and South American semiaquatic wandering spiders first described by Philipp Bertkau in 1880. [3] Originally placed with the nursery web spiders, it was moved to the Ctenidae in 1967. [4] The genus name is derived in part from Ancient Greek " ἀγκύλος " (ancylo-), meaning "crooked, bent".
Hersilia savignyi is a hersiliid spider found in Kerala, Maharashtra, Gujarat, Telangana, Karnataka, West Bengal, Myanmar, Philippines, Singapore, and Sri Lanka. Popularly called the "two-tailed spider", this spider is common in southern India. It lives on the trunks of large trees — including commonly on the trunk of the coconut palm.