''Zacallites'' is a genus of extinct

damselflies Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies (which constitute the other odonatan suborder, Epiprocta) but are usually smaller and have slimmer bodies. Most species fold the win ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Zacallitidae. The genus was created for the species '' Zacallites balli'' from the Eocene

Green River Formation The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes in three basins along the present-day Green River (Colorado River), Green River in Colorado, Wyoming, and Utah. The sedimen ...

of Colorado. Another species '' Zacallites cockerelli'' was also described from the same area in 2020. Two

Eocene Okanagan Highlands The Eocene Okanagan Highlands or Eocene Okanogan Highlands are a series of Early Eocene geological formations which span a transect of British Columbia, Canada, and Washington state, United States. Known for a highly diverse and detailed plant ...

fossils from the

Klondike Mountain Formation The Klondike Mountain Formation is an Early Eocene (Ypresian) geological formation located in the northeast central area of Washington (state), Washington state. The formation is composed of volcanic rocks in the upper unit and volcanic plus lacu ...

at Republic, Washington were tentatively identified as ''Zacallites'' sp. by Standley Lewis (1992). However, redescription of the fossils by S. Bruce Archibald and Robert Cannings (2021) moved specimen UWBM 72289 to the dysagrionid genus '' Okanagrion'' and specimen SCSU7B-16 to the whetwhetaksid genus '' Whetwhetaksa''.

References

Calopterygoidea Fossil odonates Fossil Odonata genera Taxa named by Theodore Dru Alison Cockerell Green River Formation {{Calopterygoidea-stub