Molecular species delimitation of Southeast Asian Dudgeodes using generalized mixed Yule coalescence (GMYC), Poisson Tree Processes (PTP) and multi-rate Poisson Tree Processes (mPTP) using partial COI sequence (593 bp). The phylogenetic tree shows the topology of COI gene tree following Maximum Likelihood method and Tamura 3-parameter+GI model, 1000 bootstrap. Only nodes with bootstrap > 70% are indicated. Statistical parsimony network of the new species and D. pescadori are given depicting the haplotype diversity and localities. Colors based on intra-Philippine biogeographic regions; black circles correspond to intermediate or missing haplotypes.

Dudgeodes bauernfeindi sp. nov. A dorsal B lateral C ventral. Scale bars: 1 mm (B = C).

Dudgeodes freitagi sp. nov. A dorsal B lateral C ventral. Scale bars: 1 mm (B = C).

Dudgeodes luntian sp. nov. A dorsal B lateral C ventral. Scale bars: 1 mm (B = C).

Dudgeodes pangantihoni sp. nov. A dorsal B lateral C ventral. Scale bars: 1 mm (B = C).

Dudgeodes tabang sp. nov. A dorsal B lateral C ventral. Scale bars: 1 mm (B = C).

Dudgeodes vonrinteleni sp. nov. A dorsal B lateral C ventral. Scale bars: 1 mm (B = C).

Dudgeodes pescadori Sartori, 2008 Paratype. Sample collected on 1977. Red arrows pointing to brownish band. Scale bar: 1 mm.

Blackish dorsal part of male eyes color across conspecific samples. Dudgeodes luntian sp. nov. A EPH127 B EPH136 C EPH137 D EPH149 E EPH151 F EPH153 G EPH156 H EPH186.

Brown dorsal part of male eyes color across conspecific samples. Dudgeodes pangantihoni sp. nov. A EPH165 B EPH166 C EPH168 D EPH207 E EPH210 F EPH212 G EPH213 H EPH220.

Outer incisor variability across conspecific samples. Dudgeodes pangantihoni sp. nov. A EPH163 B EPH165 C EPH168 D EPH207 E EPH212. Scale bar: 20 μm.

Row of simple and feathery long setae below the right mandible mola of Dudgeodes species. A D. pangantihoni sp. nov. B D. luntian sp. nov. C D. vonrinteleni sp. nov. D D. bauernfeindi sp. nov. E D. tabang sp. nov. F D. freitagi sp. nov. Scale bar: 20 μm (A–E).

Thorax tubercles variability across nymphal stage and sex. Dudgeodes pangantihoni sp. nov. A EPH 163 female B EPH166 mature male C EPH168 male D EPH 207 male. Red arrows pointing mesothorax tubercles.

Forefemur transverse row of setae. A Dudgeodes bauernfeindi sp. nov. B D. pangantihoni sp. nov. C D. tabang sp. nov. Scale bar: 20 μm.

Tergite VI ornamentations of Philippine Dudgeodes species. A D. pangantihoni sp. nov. B D. luntian sp. nov. C D. vonrinteleni sp. nov. D D. pescadori E D. bauernfeindi sp. nov. F D. tabang sp. nov. G D. freitagi sp. nov. Scale bar: 50 μm.

Tergite VII ornamentations of Philippine Dudgeodes species. A D. pangantihoni sp. nov. B D. luntian sp. nov. C D. vonrinteleni sp. nov. D D. pescadori E D. bauernfeindi sp. nov. F D. tabang sp. nov. G D. freitagi sp. nov. Scale bar: 50 μm.

Collection sites of Philippine Dudgeodes species. A Jadjad River, Luzon (D. freitagi sp. nov.) B Mimpis River, Luzon (D. vonrinteleni sp. nov.) C Payas River, Luzon (D. pangantihoni sp. nov.).