A new genus of small Minnow Mayflies (Insecta : Ephemeroptera : Baetidae) with six new species from New Guinea and New Britain

Papuanatula, n. gen. (Ephemeroptera : Baetidae), is described from New Guin ea and New Britain and based on both larvae and adults. Larvae of Papuanatu la are distinguished by having basally narrow and distally broad antennal s capes; glossae shorter than paraglossae; segment 3 of labial palps more con vex laterally than medially; ventral long, somewhat robust, simple seta sub -distally on tarsi; gills on abdominal segments 2-7; reduced medial caudal filament; and absence of hindwingpads. Adults have double marginal intercal aries in the forewings, lack hindwings, and males possess a sclerotized pro cess between the genital forceps. Five new species are described from New G uinea [P. bessa n. sp., P. copis n. sp., P. lenos n. sp., P. plana n. sp., and P. tuber; n. sp. (type species)] and one new species named from New Bri tain (P. vaisisi n. sp.). An identification key to the larvae of the six ne w species is included.