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) (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) (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) (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, 136 k), which form fields of peculiar shape on femora.

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

Species included in Papuafiliola subgen. nov.

Papuanatula (Papuafiliola) stenophylla sp. nov.

Papuanatula (Papuafiliola) tuberculata sp. nov.