Theridion attritum is a spider from Western Australia. While it was formerly placed in the families Araneidae and Theridiosomatidae' in 1967 it was found to belong to the family Theridiidae, and indeed to the genus Theridion. While all members of the first two families have a large colulus, while T. attritum lacks one altogether. It is not to be confused with Anelosimus attritus, which was for a time known as Theridion attritum.
Theridion glaucescens is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.
Theridion kawea is a species of cobweb spider in the family Theridiidae. It is found in the United States and Mexico.
Theridion neomexicanum is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.
Theridion punctipes is a species of cobweb spider in the family Theridiidae. It is found in the United States and Mexico.
Theridion differens is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.
Theridion albidum is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.
Theridion michelbacheri is a species of cobweb spider in the family Theridiidae. It is found in the United States.
Theridion llano is a species of cobweb spider in the family Theridiidae. It is found in the United States.
Theridion leechi is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.
Theridion submissum is a species of cobweb spider in the family Theridiidae. It is found in the United States, Mexico, Bahama Islands, and Jamaica.
Theridion flavonotatum is a species of cobweb spider in the family Theridiidae. It is found in the United States and Cuba.
Theridion neshamini is a species of cobweb spider in the family Theridiidae. It is found in the United States.
Theridion cheimatos is a species of cobweb spider in the family Theridiidae. It is found in the United States.
Theridion frondeum is a species of cobweb spider in the family Theridiidae. It is found in the United States and Bahama Islands.
Theridion californicum is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.
Theridion murarium is a species of cobweb spider in the family Theridiidae. It is found in North America.
Theridion rabuni is a species of cobweb spider in the family Theridiidae. It is found in the United States and Bahama Islands.
Theridion dilutum is a species of cobweb spider in the family Theridiidae. It is found in the United States and Mexico.
Theridion varians is a species of cobweb spider in the family Theridiidae. It is found in North America, Europe, North Africa, Turkey, Caucasus, a range from Russia, Central Asia, and China.
