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Harvestmen of Zihuatanejo

ORDER OPIOLINES

-Animals (Kingdom Animalia)

-Arthropods (Phylum Arthropoda)

-Chelicerates (Subphylum Chelicerata)

-Arachnids (Class Arachnida)

-Harvestmen (Order Opiliones)

-Eupnoan Harvestmen (Suborder Eupnoi)

-Superfamily (Phalangioidea)

-Sclerosomatid Harvestmen (Family Sclerosomatidae)

-Subfamily Gagrellinae

-Genus Krusa

-Krusa annulata


Krusa annulata is native to Mexico. Harvestmen have a single, fused, oval-shaped body section, unlike spiders which have two distinct body segments (cephalothorax and abdomen). They possess eight legs, which are often very long and spindly. The second pair is typically longer and used as sensory organs, like antennae. They also have a pair of pincer-like mouthparts (chelicerae) used for feeding.

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Krusa annulata

Description

  • Krusa annulata is a species of harvestman in the family Sclerosomatidae and subfamily Gagrellinae. Like other harvestmen, it has a compact, rounded body with eight long, slender legs and a single broadly fused body structure. Its appearance is generally spider-like, although harvestmen lack the narrow waist characteristic of true spiders.

Range

  • Krusa annulata is endemic to Mexico, with its known distribution centred on the state of Guerrero. It may occur in suitable habitats around Zihuatanejo.

Habitat

  • This species likely inhabits sheltered environments in tropical forest, woodland, and scrub, particularly areas with leaf litter, fallen branches, rocks, and dense vegetation. Like many harvestmen, it is probably most active under humid conditions and seeks protected locations during hot or dry periods. Its specific habitat preferences have not been extensively studied.

Diet

  • Krusa annulata is likely an opportunistic omnivore and scavenger, feeding on small invertebrates, dead insects, decaying organic matter, and possibly fungi or soft plant material. Like other harvestmen, it uses its mouthparts to consume solid food rather than relying on venom or silk to capture prey.

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