Key to species of Punctifulvius

1. Small insect, body length less than 2.5 mm (Indonesia)............................................ P. parvus n. sp.

- Body length more than 2.5 mm .......................................................................... 2

2. Hemelytron uniformly fuscous (Fig. 1A; Namyatova & Cassis 2019: fig. 4); head distinctly punctate (Fig. 9G)........... 3

- Hemelytron with cuneus widely pale brown or orange red; head rugose, at most with sparse, shallow punctures on vertex and frons (Figs 1B, C)..................................................................................... 5

3. Pronotal calli flattened, posterior lobe of pronotum without longitudinal ridge (Fig 9G; Namyatova & Cassis 2019: fig. 10B). ................................................................................................... 4

- Pronotal calli convex, posterior lobe of pronotum with longitudinal ridge (Namyatova & Cassis 2019: fig. 10C) (Australia)......................................................................... P. aquilonius Namyatova & Cassis

4. Pronotum covered with fine, moderately dense setae (Figs 9G) (East Palearctic)................... P. kerzhneri Schmitz

- Pronotum glabrous (Namyatova & Cassis 2019: figs 10B, E) (Australia)................ P. austellus Namyatova & Cassis

5. Corium and exocorium (embolium) uniformly darkened (Fig. 1C) (inhabiting tropical dry forest zone of central Thailand)......................................................................................... P. sakaerat n. sp.

- Anterior half of corium and exocorium with yellow pale brown tinge (Fig. 1B) (Malaysia)............ P. aleksanderi n. sp.