Prosopistomatidae

Prosopistomatidae is a family of mayflies. There is one extant genus, Prosopistoma, with several dozen species found across Afro-Eurasia and Oceania. They are noted for their unusual beetle-shaped larvae, which live beneath rocks and stones along the gravelly lower reaches of rivers.^[1][2][3][4] Their ecology is unclear, but they are probably carnivorous.^[4] They are closely related to Baetiscidae, with both families being placed in the Carapacea.^[5]

Prosopistomatidae Temporal range: Cenomanian–Recent PreꞒ Ꞓ O S D C P T J K Pg N
Prosopistoma larvae
Prosopistoma female subimago (which appears to the mature female adult stage of this genus)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Ephemeroptera
Family:	Prosopistomatidae Lameere 1917
Genera
See text

Genera

These two genera belong to the family Prosopistomatidae:

• Prosopistoma Latreille, 1833
• †Proximicorneus Lin et al., 2017 Burmese amber, Myanmar, Late Cretaceous (Cenomanian)