Phaloria berbeda Tan & Robillard, 2021

Tan, Ming Kai, Rahmadi, Cahyo & Robillard, Tony, 2021, New species of Phaloria (Orthoptera: Phalangopsidae: Phaloriinae) from West Papua (Indonesia), Zootaxa 4985 (4), pp. 513-530 : 519-520

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Phaloria berbeda Tan & Robillard

sp. nov.

Phaloria berbeda Tan & Robillard , sp. nov.

( Figs. 1F View FIGURE 1 , 2E View FIGURE 2 , 3E View FIGURE 3 , 4F View FIGURE 4 , 5I, 5J View FIGURE 5 , 8 View FIGURE 8 )

Material examined. Holotype (male, LEN2014 -TR142). New Guinea, Indonesia, West Papua, Lobo, S3.706417, E134.072139 ( LOBO4 ), 189 m. a.s.l., forêt proche PK8/ route Lobo-Kaimana camp à 200 m, forêt primaire [forest near PK8 / Lobo-Kaimana camp road 200 m away, primary forest], 21–30.x.2014, nuit [night], sur plante [on plant], T. Robillard ( MZB.Orth.21842). GoogleMaps

Paratypes. 1 male ( LEN2014 -TR167), same locality and details as holotype, call recording on video 075 (MNHN-EO-ENSIF1718) . 1 male ( LEN2014 -TR242), same locality, S3.7141944, E134.069333 ( LOBO7 ), 377 m GoogleMaps .a.s.l., forêt proche PK8/ route Lobo-Kaimana, forêt primaire entre camp et falaise [forest near PK8 / Lobo-Kaimana road, primary forest between camp and cliff], 21–30.x.2014, nuit [night], molecular sample P5, sur plante [on plant], T . Robillard ( MZB.Orth.21843).

Type locality. New Guinea, Indonesia, West Papua, Kaimana Regency, Lobo

Etymology. The species name refers to the distinctly unique shapes of pseudepiphallic lobes and parameres and endophallic sclerite; berbeda = different in Bahasa Indonesia.

Diagnosis. This new species is unique among congeners by genitalia: pseudepiphallic lobes with a folded ventral lobe also with truncated apex; pseudepiphallic parameres with basal end narrow and apical half with stout inner tooth-like process; ectophallic fold with apex producing into pair of short slender lateral process with acute apex; endophallic sclerite very small with a pair of stout check-mark structures.

This species similar to P. vulgata Gorochov, 1996 from New Guinea by habitus, colour patterns and genitalia (presence of stout nodules in the middle of pseudepiphallus, pseudepiphallic lobes with apical lobe produced inwards); but differs by pseudepiphallic lobes more broad and obtuse apically, pseudepiphallic parameres with very different shape, apical spines of ectophallic fold slender with acute apices and inner arm of ectophallic apodemes broader. This species is also similar to P. manifesta Gorochov, 2014 from Faowi (West Papua) by shape of ectophallic fold, but differs by shapes of pseudepiphallic lobes and pseudepiphallic parameres. Habitus and pseudepiphallic lobes of the new species somewhat resembles that of P. chopardi (Willemse, 1951) from Carolina Islands but differs by pseudepiphallic lobes not bent inwards and pointing one another, apical spines of ectophallic fold much shorter, rami much longer, surpassing ectophallic apodemes. This species is also vaguely similar to P. aspersa Gorochov, 1996 from New Guinea by shapes of pseudepiphallic parameres and pseudepiphallic lobes, but differs drastically in size and colour patterns, shapes of ectophallic fold and ectophallic apodemes.

Subgeneric status. This species should belong to the subgenus Papuloria based on the pseudepiphallus with a pair of lateral lophi and endophallic sclerite without large unpaired apodeme directed anteriorly.

Description. Habitus similar to Phaloria brevis Tan & Robillard , sp. nov. from Kumawa, but smaller in size and wings slightly broader ( Fig. 1F View FIGURE 1 ). Head dorsum yellow brown with four longitudinal brown bands at posterior end ( Fig. 2E View FIGURE 2 ). Fastigium brown. Scapes yellow brown, ventrally dark brown. Antennae unicolourous yellow brown. Fastigium verticis yellow brown with Ω omega-shaped dark brown pattern. Frons, clypeus and mouthparts pale yellow brown; frons with four brown vertical bands that continue to clypeus ( Fig. 3E View FIGURE 3 ). Maxillary palpi pale coloured; apices of segments faintly brownish. Lateral part of head, including genae, pale yellow brown; gena with a vertical brown band ventral to eye; with a broad brown (darker than head dorsum) horizontal band at posterior of eye. Pronotal disk generally brown; posterior margin slightly sinuous ( Fig. 2E View FIGURE 2 ). Lateral lobes brown (slightly darker than pronotal disk), with a few pale brown spots. Legs pale yellow brown with brown patterns and spots. Inner tympanum oblong, with distal end more acute; outer tympanum similarly sized and oval. FIs and FIIs with large brown spots on inner and outer surface at the base, followed by two brown rings near knees (one in the middle and another near the knee), basally with some brown spots on the dorsal and inner surface. TIs with a broad brown ring around tympanum and two other rings (one in middle and one at apex). FIIIs yellow brown basally with some brown spots, distal third and knees brown, with a pale ring near knees. TIIIs yellow brown with brown rings. Tergites yellow brown.

Male. FWs slenderer, about 2.8 times longer than wide, surpassing abdominal apex, mostly yellow brown and some parts hyaline ( Fig. 4F View FIGURE 4 ). FW venation typical of genus, 8 fairly straight veins in harp; mirror 1.0–1.1 times as long as wide, very large and separated by two dividing veins: basal one mostly straight, distal one angularly bent. Apical field long, 1.0–1.1 times longer than length of mirror. Lateral field with R and M diverging before converging strongly at apical third, with 8 cross veins between R and M; with 22 projections of Sc. Hind wings reaching apex of FW, not exceeding FWs.

Male genitalia ( Figs. 5I, 5J View FIGURE 5 ). Pseudepiphallus with lateral margins slightly converging posterior; its posterior margin with a deep round indentation in the middle, with a pair of small stout nodular lobules. Pseudepiphallic lobe stout, dorsally obliquely truncated at the apex, with a folded ventral lobe also with truncated apex. Rami long, much longer than half of pseudepiphallus length, faintly curved inwards at the basal end, but not connected. Pseudepiphallic parameres strongly sclerotized, somewhat obliquely transverse; basal end narrow with rounded apex, apical third with stout dorso-inner tooth-like process; apex obtuse, pointing posteriorly. Ectophallic apodemes fork-shaped, with basal end short; inner apical arm pointing obliquely and towards each other, outer apical arm pointing posteriorly with apex strongly widened and truncated. Ectophallic fold separated into two elongated plate-like structures with inner margin concave, with apex producing into a short slender process at the external margin, process with apex acute and pointing obliquely towards each other. Endophallic sclerite very small with a pair of check-mark structures, with basal lobule pointing externally and dorsad with obtuse apex and posterior end also with obtuse apex.

Female. Unknown.

Measurements (in mm). Male holotype PronL = 2.1, PronW = 3.9, FWL = 15.1, FWW = 5.4, FIIIL = 7.6, FIIIW = 2.5, TIIIL = 8.8; male paratypes PronL = 2.0–2.4, PronW = 3.8, FWL = 13.9–14.6, FWW = 5.5–5.7, FIIIL = 7.7–7.9, FIIIW = 2.1–2.5, TIIIL = 8.1–8.4.

Calling song ( Fig. 8 View FIGURE 8 ). The calling song consists of a series of echemes with echeme duration of 54.4±9.7 ms (43.1–70.6 ms) and echeme period of 0.11±0.01 s (0.10–0.12 s). Down time between echemes is 53.4±7.2 ms (35.0–61.0 ms). Each echeme consists of 4 to 6 closely-packed syllables. Each syllable has a duration of 11.0±0.5 ms (10.2–11.8 ms). The syllable has a dominant frequency of 4.96± 0.02 kHz (4.89–4.97 kHz).


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Museum Zoologicum Bogoriense