Species list, Checklist of Family Tvaerenellidae for Iowa (USA)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

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Checklist for Family Tvaerenellidae Jaanusson, 1957
and region Iowa (USA)

Class	Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps	37 91 192	Families Genera Species	Taxom
Order	Beyrichicopida Pokorny, 1954	12 23 67	Families Genera Species	Taxom
Suborder	Palaeocopa Henningsmoen, 1953	7 15 38	Families Genera Species	Taxom
Superfamily	Hollinacea Swartz, 1936	3 10 30	Families Genera Species	Taxom
Family	Tvaerenellidae Jaanusson, 1957	3 8	Genera Species	Taxom

Genera for Iowa
3 Genera with 8 Species

Bromidella Harris, 0	2	Species	Taxom
Dicranella Ulrich, 0	5	Species	Taxom
Nodambichilina Swain, Corne..., 1894	1	Species	Taxom

Species list for Iowa
8 Species

Bromidella depressa
Bromidella rhomboides
Dicranella bicornis
Dicranella marginata ♰ Ulrich, 1894
Dicranella simplex
Dicranella spinosa ♰ Ulrich, 1894
Dicranella typa
Nodambichilina symmetrica ♰ Ulrich, 1894

Links, sources and further information

Tvaerenellidae at gbif.org
Tvaerenellidae at irmng.org