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Spinybacked orbweaver (female)

Gasteracantha cancriformis


Females are 5–9 mm long and 10–13 mm wide. The six abdominal spine-like projections on the abdomen are characteristic. The carapace, legs and underside are black with white spots under the abdomen. Variations occur in the colour of the upperside of the abdomen with black spots on white to yellow ground colour and red spines or yellow instead of white. Spines are sometimes black. Like in many other spiders, males are much smaller (2 to 3 mm long) and longer than wide. They are similar to the females in colour but have a gray abdomen with white spots and the spines are reduced to four or five stubby projections. It lives in woodland edges and shrubby gardens. They frequently live in trees or around trees in shrubs. This species of spider does not live very long. In fact, the lifespan only lasts until reproduction, which usually takes place the spring following the winter when they hatched. Females die after producing an egg mass, and males die six days after a complete cycle of sperm induction to the female.


Green Cay, FL


Spotted in the eaves of the visitor center.

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KarenL 9 years ago

Thanks for all your kind comments guys!
I found a few more of these at a different location yesterday

LucBertrand 9 years ago

wooooo i love this specimen !!!!! congratulation it's a nice picture and interesting spiders :D

catgrin 9 years ago

Oh, she's lovely! Great pics!

Jolly Ibañez
Jolly Ibañez 9 years ago

Vibrant sharp pictures. Wonderful spotting!

Maria dB
Maria dB 9 years ago

nice shots!

BrandonBlount 9 years ago

Holy Cow Karen! You are really getting some amazing spots down there in FL!!!! Grats on this little guy! He's amazing!

KarenL 9 years ago

Thank you Nicholas & harsuame!

harsuame 9 years ago

Que hermosa felicidades

Nicholas4 9 years ago

Such detail! wow!

KarenL 9 years ago

Thanks Yasser!
Another one that was on my "wish list"!

KarenL 9 years ago

Thanks Carol! I went to Florida to photograph the birds but of course the first critter I snapped had to be a spider!

Yasser 9 years ago

Woohoo! What a beauty!!!

CarolSnowMilne 9 years ago

U did it Karen! You found one. Congratulations! Awesome! I love these!

Spotted by

West Palm Beach, Florida, USA

Spotted on May 22, 2012
Submitted on May 23, 2012

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