Ptychopteromorpha

Ptychopteromorpha is a taxonomic group within the suborder Nematocera consisting of two uncommon families. In older classifications, these families were included within the infraorder Tipulomorpha, based on superficial similarities (e.g., slender bodies and long legs). The inclusion of the families Tanyderidae and Ptychopteridae was based on the foldability of the last tarsomere in males. Molecular studies show no close relationship between the Tanyderidae and the Ptychopteridae, and support for this grouping is limited.^[1][2]

Ptychopteromorpha
Ptychoptera contaminata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Diptera
Suborder:	Nematocera
Infraorder:	Ptychopteromorpha
Families
Ptychopteridae - Phantom crane flies Tanyderidae - Primitive crane flies