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Checklist for Subfamily Latrodectinae Petrunkevitch, 1928
and region Pennsylvania (USA)


Class
 
Arachnida
Lamarck, 1801
Arachnids
126
337
484
Families
Genera
Species
 
Taxom
 

Subclass
 
Micrura
Ehrenberg, 1831
105
308
445
Families
Genera
Species
 
Taxom
 

Infraclass
 
Megoperculata
Börner, 1902
33
180
328
Families
Genera
Species
 
Taxom
 

Order
 
Araneae
Clerck, 1757
Spider, Spiders, True Spiders
32
179
327
Families
Genera
Species
 
Taxom
 

Suborder
 
Araneomorphae
Smith, 1902
True Spiders
27
171
313
Families
Genera
Species
 
Taxom
 

Infraorder
 
Araneomorphi
Smith, 1902
27
171
313
Families
Genera
Species
 
Taxom
 

Superfamily
 
Araneoidea
Latreille, 1806
5
66
119
Families
Genera
Species
 
Taxom
 
FamilyTheridiidae
Sundevall, 1833
Cobweb And Widow Spiders, Cobweb spider, Cobweb spiders
18
28
Genera
Species
 
Taxom
 
SubfamilyLatrodectinae
Petrunkevitch, 1928
2
6
Genera
Species
 
Taxom
 


Genera for Pennsylvania
2 Genera with 6 Species
Latrodectus Walckenaer, 1837Black widow spider2SpeciesTaxom
Steatoda Sundevall, 1802False black widows4SpeciesTaxom


Species list for Pennsylvania
6 Species
Latrodectus mactans (Fabricius, 1775)⇒ Latrodectus tredecimguttatus Rossi, 1790
Latrodectus variolus (Walckenaer, 1837)⇒ Latrodectus hesperus Chamberlin &..., 1935
Steatoda borealis Nicholas Mar..., 1850Boreal Combfoot
Steatoda grossa C. L. Koch, 1838Brown house spider
Steatoda nobilis Tord Tamerla..., 1875Cobweb weaver
Steatoda triangulosa Walckenaer, 1802Triangulate bud spider