Checklist for Family Theridiidae Sundevall, 1833 (Cobweb And Widow Spiders)
and region Allegheny County (Pennsylvania, USA)
Class
| Arachnida
Lamarck, 1801
Arachnids | 50
118
151 | Families
Genera
Species |
Taxom
|
Subclass
| Micrura
Ehrenberg, 1831
| 45
112
143 | Families
Genera
Species |
Taxom
|
Infraclass
| Megoperculata
Börner, 1902
| 24
83
121 | Families
Genera
Species |
Taxom
|
Order
| Araneae
Clerck, 1757
Spider, Spiders, True Spiders | 24
83
121 | Families
Genera
Species |
Taxom
|
Suborder
| Araneomorphae
Smith, 1902
True Spiders | 22
81
118 | Families
Genera
Species |
Taxom
|
Infraorder
| Araneomorphi
Smith, 1902
| 22
81
118 | Families
Genera
Species |
Taxom
|
Superfamily
| Araneoidea
Latreille, 1806
| 4
34
46 | Families
Genera
Species |
Taxom
| | Family | Theridiidae
Sundevall, 1833
Cobweb And Widow Spiders, Cobweb spider, Cobweb spiders | 8
10 | Genera
Species |
Taxom
|
Genera for Allegheny County
8 Genera with 10 Species
Species list for Allegheny County
10 Species | Asagena americana James Henry ..., 1882 | Two-Spotted Cobweb Spider | | Dipoena nigra (James Henry ..., 1882) | ⇒ Theridula nigerrima Alexander Pe..., 1911 | | Enoplognatha marmorata (Nicholas Mar..., 1850) | ⇒ Enoplognatha caricis Fickert, 1876 | | Latrodectus variolus (Walckenaer, 1837) | ⇒ Latrodectus hesperus Chamberlin &..., 1935 | | Steatoda triangulosa Walckenaer, 1802 | Triangulate bud spider | | Theridion differens (James Henry ..., 1882) | ⇒ Theridion glaucescens Lawrence Becker, 1879 | | Theridion frondeum Nicholas Mar..., 1850 | Eastern Long-Legged Cobweaver | | Theridion glaucescens Lawrence Becker, 1879 | | | Theridula emertoni Herbert Walt..., 1954 | Emerton'S Bitubercled Cobweaver | | Theridula opulenta (Charles Atha..., 1842) | ⇒ Theridula gonygaster Eugène Simon, 1873 |
Subnodes of Theridiidae with occurrences in Allegheny County
 | | Theridiidae (Sundevall 1833) |
Links, sources and further information Theridiidae at artfakta.se
Theridiidae at biodiversity.org.au
Theridiidae at dyntaxa.se
Theridiidae at gbif.org
Theridiidae at irmng.org
Theridiidae at itis.gov
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