cobweb spiders vs Mealy Parrot / Mealy Amazon

Steatoda grossa compared with Amazona farinosa

Key Differences

• cobweb spiders is Least Concern while Mealy Parrot / Mealy Amazon is Near Threatened.

Taxonomic Classification

Rank	cobweb spiders	Mealy Parrot / Mealy Amazon
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Arachnida (Arachnids)	Aves (Birds)
Order	Araneae (Araneae)	Psittaciformes (Parrots)
Family	Theridiidae	Psittacidae (True Parrots)
Genus	Steatoda	Amazona
Species	Steatoda grossa	Amazona farinosa

Evolutionary Relationship

cobweb spiders and Mealy Parrot / Mealy Amazon share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

cobweb spiders

LC — Least Concern

Mealy Parrot / Mealy Amazon

NT — Near Threatened

Physical Characteristics

Attribute	cobweb spiders	Mealy Parrot / Mealy Amazon
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

cobweb spiders

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Africa (South Africa), Europe (29 countries), North America (Canada, United States), and South America (Ecuador).

Mealy Parrot / Mealy Amazon

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

cobweb spiders

The false black widow (Steatoda grossa) is a cosmopolitan cobweb spider in the family Theridiidae, often mistaken for the true black widow due to its similarly dark, globose abdomen, though it lacks the red hourglass marking. Females reach 6–10 millimeters in body length and display a deep purplish-brown to nearly black coloration with faint pale markings on the dorsal abdomen. Originally native to western Europe, Steatoda grossa has spread globally through human commerce, establishing populations in Australia, New Zealand, North America, and other regions where it thrives in human structures including homes, sheds, and outbuildings. The spider constructs a persistent, tangled cobweb in sheltered corners and recesses, where it captures woodlice, ants, beetles, and other arthropods—notably targeting invertebrates that many other spiders avoid. The venom of S. grossa causes steatodism, a syndrome of localized pain, sweating, and systemic discomfort that is rarely serious but can cause significant distress. Interestingly, the antivenin produced for Latrodectus (true widow) spider bites has been shown to effectively treat Steatoda envenomations, underscoring the phylogenetic relatedness of these genera. Females produce several egg sacs during a season, each containing dozens of eggs wrapped in distinctive silken cocoons. The species is classified as Least Concern given its expanding global distribution facilitated by human activity.

Mealy Parrot / Mealy Amazon

One of the largest amazon parrots, mealy amazons have subtle powder-green plumage with bluish-grey head and a distinctive dusty or powdery sheen to the feathers that gives them their name. Found in lowland tropical forest from southern Mexico through Central America and across most of South America to Bolivia and Brazil. They inhabit humid forest and forest edges, traveling in pairs or small flocks. Listed as Least Concern globally though locally impacted by habitat loss and the pet trade.

Shared Countries

Both species can be found in 1 countries:

🇪🇨 Ecuador