Insecta - Permopsocida - Psocidiidae

Synonyms: Chaetopsocidium sellardsi Tillyard 1926, Metapsocidium loxoneurum Tillyard 1926, Pentapsocidium indistinctum Tillyard 1926, Permentomum tenuiforme Tillyard 1926, Psocidium abnormale Tillyard 1926, Psocidium kansasense Tillyard 1926, Psocidium permianum Tillyard 1926, Psocidium robustum Tillyard 1926

Full reference: R. J. Tillyard. 1926. Kansas Permian Insects, Part 8: The Order Copeognatha. American Journal of Science, Series 5 11(64):315-349

Belongs to Dichentomum according to D. Y. Huang et al. 2016

See also Carpenter 1932, Carpenter 1933, Carpenter 1939, Tillyard 1926 and Zimmerman 1962

Sister taxa: Dichentomum arroyo, Dichentomum complexum, Dichentomum grande, Dichentomum latum, Dichentomum minimum, Dichentomum parvulum

Type specimens:

• Dichentomum tinctum: YPM 5071, a forewing. Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Chaetopsocidium sellardsi: YPM 5098, a forewing. Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Metapsocidium loxoneurum: YPM 5099, a wing. Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Pentapsocidium indistinctum: YPM 5100, a wing. Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Permentomum tenuiforme: YPM 5101, a forewing. Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Psocidium abnormale: YPM 5073, an exoskeleton (body with left forewing). Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Psocidium kansasense: YPM 5075, a forewing. Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Psocidium permianum: YPM 5072, an exoskeleton (complete insect). Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
• Psocidium robustum: YPM 5074, an exoskeleton (body with forewing). Its type locality is Elmo, YPM 1921 collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.

Ecology:

Distribution:

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Specimen images are retrieved through the ePANDDA API.