Mastophora phrynosoma is a species of orb weaver in the spider family Araneidae.

It is found in the United States.

[1][2][3][4] Like all known species of the genus Mastophora, adult females are bolas spiders, capturing their prey with one or more sticky drops at the end of a single line of silk rather than in a web.

Males and juvenile females capture their prey directly with their legs.

This Araneidae-related article is a stub.