Papuanatula (Papuafiliola), Kaltenbach & Kluge & Gattolliat, 2025

Kaltenbach, Thomas, Kluge, Nikita J. & Gattolliat, Jean-Luc, 2025, Redescription of Papuanatula Lugo-Ortiz & McCafferty (Ephemeroptera, Baetidae), with description of a new subgenus and 20 new species, ZooKeys 1227, pp. 159-347 : 159-347

publication ID	https://doi.org/10.3897/zookeys.1227.138100
publication LSID	lsid:zoobank.org:pub:F259B26F-4DA1-452E-ABEE-7D0957CFE261
DOI	https://doi.org/10.5281/zenodo.14852602
persistent identifier	https://treatment.plazi.org/id/49A29F68-9938-5331-BB36-E82080C2252B
treatment provided by	ZooKeys by Pensoft
scientific name	Papuanatula (Papuafiliola)
status	subgen. nov.

Treatment

Subgenus Papuafiliola subgen. nov.

Type species.

Papuanatula (Papuafiliola) stenophylla sp. nov.

Etymology.

The new genus-group name Papuafiliola is formed from the nouns Papua and filiola (most known Latin word for “ little daughter ”). Gender is feminine.

Diagnosis (larval characters).

Antenna with each flagellomere symmetric, cylindrical, without brown hypodermal spot (Fig. 133 b View Figure 133 ) (in contrast to Papuanatula s. str.).

Labrum not enlarged and widest at base, dorsally with few submarginal, simple setae (in contrast to feathered setae in Papuanatula s. str.)

Mandibles with incisor shortened (Fig. 134 b – e View Figure 134 ) (in contrast to elongated in Papuanatula s. str.).

Labium: Glossae longer than half of paraglossae, with finger-like (distal) portion much longer than triangular (proximal) portion. Labial palp with distomedian projection on 2 nd segment (Fig. 134 h – j View Figure 134 ) (in contrast to Papuanatula s. str.).

Legs: outer side of femur with regular row of long, slender, flattened, parallel-sided setae with blunt apices. Tibia and tarsus with regular row of similar setae. Inner margin of tarsus with distalmost seta not longer or only slightly longer than others.

Paraproct without posterior prolongation.

Pose of subimaginal gonostyli under larval cuticle in “ Crassolus - type ” ( Kluge et al. 2020; Kluge 2021): gonostylus shortened and bent in articulation of 2 nd and 3 rd segments; 2 nd segment directed caudally-medially and not bent; 3 rd segment directed medially-cranially and terminated mediad of 2 nd segment. Besides these characters, both known species of Papuafiliola subgen. nov. have common peculiar characters: body, legs, and marginal ribs of tergalii are covered with minute denticles (Figs 135 a, b, d View Figure 135 , 136 k View Figure 136 ), which form fields of peculiar shape on femora.

Eggs of both species with net-like relief (Figs 138 a, b View Figure 138 , 145 a – e View Figure 145 ).

Species included in Papuafiliola subgen. nov.

Papuanatula (Papuafiliola) stenophylla sp. nov.

Papuanatula (Papuafiliola) tuberculata sp. nov.