Black Spinybacked Orb Weavers: How to Identify

Black Spinybacked orb weavers are just one coloration, most other members of this species have various other colors.

Spinybacked orb weavers
spiny-orb-weaver On the finger. Spinybacked Orbweaver Spider (Gasteracantha cancriformis). Photo credit: Physics_Joe

Black Spinybacked orb weavers: Identification.

Black Spinybacked orb weavers (Gasteracantha cancriformis) demonstrate distinct sexual dimorphism concerning the size. Females measure 5-9 mm in length and 10-13mm across, whereas males are 2-3 mm long and slightly narrower. All morphs have six abdominal spines; however, the coloration of these may vary from red to yellow or orange depending on location. Additionally, many occasionally boast white spots underneath their abdomens and colored legs.

The ebony coloring of the Black Spinybacked Orb Weaver can be advantageous in nabbing their prey; however, they become more exposed to predation due to their unthreatening pigmentation or design that fails at repelling aggressors.

Black Spinybacked orb weavers: Habitat.

The black Spinybacked orb weaver spider has made its home among woodland edges and shrubby gardens, as well as in Florida’s citrus groves. Known to frequent trees or their surrounding foliage, this species is often spotted nesting high above ground level.

Black Spinybacked orb weavers: Life Span.

This species of black Spinybacked orb weavers do not live very long. The lifespan only lasts until reproduction, usually in the spring following the winter when they hatched. Female Spinybacked orb weavers die after producing an egg mass, and males die six days after a complete cycle of sperm induction to the female.

Further recommended reading about spiders.

Spider pages: Learn how to identify and avoid these spiders.

Parson spiders.

White spiders.

Striped spider in the U.S.

How long do spiders live?

Spider anatomy 101.

The most venomous spiders in the world.

Zebra spiders.

Furrow orb weaver spider.

Marbled orb weaver spiders.

Red house spider identification.

Purse web spider.

Crab spider: How to identify.

Orb weaver Spiders: How to identify and get rid of them.

Common house spiders: How to Identify and get rid of them.

Dark fishing spiders.

Six-Eyed Sand Spider: Is the White Sand Spider Dangerous?

10 biggest spiders in the world.

The Red widow spider

Giant Huntsman Spider: How to Identify the Largest Spider

Brazilian salmon pink bird-eating tarantula

Brazilian Giant Tawny Red Tarantula

Colombian Giant Redleg Tarantula

Cerbalus Aravaensis: Middle East’s Largest Spider

Camel spiders: Myths and Facts.

Net-casting spiders: How to identify these spiders.

White-tailed spider: How to identify and manage.

Katipo Spider: How to identify New Zealand’s venomous spider

Brown widow spider: How to identify and avoid the false widow.

Redback spiders how to identify them and prevent bites

Funnel weaver spiders vs funnel-web

Cellar spiders how to identify and get rid of them

How to identify the wolf spider

How to identify the hobo spider

Brazilian wandering spider how to identify and avoid

Huntsman spider how to identify the eight legged freak

Jumping spiders how to identify these harmless hunters

Black widow spiders how to identify and avoid

Tarantulas appearance diet and mating

Do tarantulas bite?

Brown recluse spiders how to identify and avoid

Dennis V. Gilmore Jr.

Dennis V. Gilmore Jr. is a former Marine Sergeant and the author of several books, including two on night hunting coyotes and red and gray fox. He has written several hundred articles on predator hunting for

Recent Posts