Phaloria lobulata 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 : 526-528

publication ID	https://doi.org/ 10.11646/zootaxa.4985.4.5
publication LSID	lsid:zoobank.org:pub:BBBAFB98-1377-42FF-91A0-79F28A046CA3
DOI	https://doi.org/10.5281/zenodo.4964260
persistent identifier	https://treatment.plazi.org/id/03EE87E7-FFC6-FFBB-88EC-7CE8FE7AC714
treatment provided by	Plazi
scientific name	Phaloria lobulata Tan & Robillard
status	sp. nov.

Treatment

Phaloria lobulata Tan & Robillard , sp. nov.

( Figs. 1G View FIGURE 1 , 2F View FIGURE 2 , 3F View FIGURE 3 , 4G View FIGURE 4 , 5K, 5L View FIGURE 5 )

Material examined. Holotype (male, LEN2014 -TR542), New Guinea, Indonesia, West Papua, Kumawa , S4.0688333, E133.036444 ( KUM2 ), 27 m. a.s.l., forêt littorale karstique sur pente [karst coastal forest on slope], 11–17.xi.2014, jour [day], litière [leaf litter], T. Robillard ( MZB.Orth.21844). GoogleMaps

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

Etymology. The species name refers to the median lobe present in the ectophallic fold and the lobule at the apical third external margin of the pseudepiphallic lobe that distinguish this species from other similar congeners; lobulata = lobulated in Latin.

Diagnosis. This new species is unique among congeners by pseudepiphallic lobes forming pincer-like paired processes, dorsal process bends inward, with setose lobule at apical third along external margin; ectophallic fold with lateral arms pointing postero-externally and with a narrow median lobe tapering into a narrow obtuse apex.

This species is most similar to P. pareximia Gorochov, 1999 from Cyclops Mountains (north-eastern West Papua) and then P. eximia Gorochov, 1996 from New Guinea in pseudepiphallic lobes, pseudepiphallic parameres and endophallic sclerite; but differs by pseudepiphallic lobes with setose nodule at apical third, shape of pseudepiphallic parameres and ectophallic fold with median lobe and with lateral arms pointing slightly externally. It also differs from P. pareximia by basal process of pseudepiphallic lobes pointing interno-anteriorly (instead of interno-posteiorly). It differs from P. eximia by basal lobe of pseudepiphallic lobes acute (rather than stout) and pseudepiphallic parameres without long acute process. This species is also vaguely similar in pseudepiphallic lobes as P. aleximia Gorochov, 2005 from Supiori Island (north of West Papua) but differs by shape of pseudepiphallic parameres without long acute external process.

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. Similar to Phaloria brevis Tan & Robillard , sp. nov. in habitus, size and colour patterns (more contrasting but could be due to artefact of preservation) ( Fig. 1G View FIGURE 1 ). Head dorsum yellow brown with irregular brown bands at posterior end ( Fig. 2F View FIGURE 2 ). Fastigium darker brown. Scapes yellow brown, ventrally dark brown. Antennae yellow brown. Fastigium verticis brown. Frons, clypeus and mouthparts pale brown; frons with a horizontal dark brown stripe ventral to eye; clypeus with another horizontal dark brown stripe ( Fig. 3F 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 brown horizontal band at posterior of eye; posterior margin of head dark brown. Pronotal disk generally dark brown with median carina pale brown and two pairs of lateral oval pale brown spots; posterior margin slightly sinuous ( Fig. 2F View FIGURE 2 ). Lateral lobes also dark brown, with two pale brown spots near ventro-anterior angle. Legs pale yellow brown with brown patterns and spots. Inner tympanum oblong; outer tympanum smaller and oval. FIs and FIIs with two brown oblong spots on inner and outer surfaces at the base (sometimes forming an incomplete ring), followed by brown rings near knees. TIs with three brown rings (one around tympana, one in middle and one at apex). FIIIs yellow brown basally with some brown spots and mottled patterns on the dorsal surface, distal third with a brown ring and knee area brown. TIIIs yellow brown with brown rings, particularly around bases of spurs. Tergites yellow brown.

Male. FWs slender, about 2.9 times longer than wide, surpassing abdominal apex, mostly yellow brown and some parts hyaline ( Fig. 4G View FIGURE 4 ). FW venation typical of genus, 8 fairly straight veins in harp; mirror as long as wide, very large and separated by two dividing veins: basal one mostly straight, distal one angularly bent. Apical field long, 1.1 times longer than length of mirror. Lateral field with R and M diverging before converging strongly at apical third, with 6 cross veins between R and M. Hind wings reaching apex of FW, not exceeding FWs.

Male genitalia ( Figs. 5K, 5L View FIGURE 5 ). Pseudepiphallus with lateral margins slightly converging posterior; with posterior margin deeply, roundly and broadly incised in the middle, in the middle with a pair of small stout triangular lobules. Pseudepiphallic lobe forming pincer-like paired processes; both processes pointing internally, slender and with acute apex; dorsal process anterior of ventral process; dorsal process bends inward, with setose lobule at apical third along external margin; ventral process more gently curved. Rami long, longer than the pseudepiphallus length, curved inwards apically, but not connected. Pseudepiphallic parameres strongly sclerotized, obliquely transverse and curved, with two posterior lobes, one dorsal and one ventral; dorsal lobe basal of ventral lobe, triangular; ventral lobe tongue-shaped, pointing interno-posteriorly. Ectophallic apodemes fork-shaped, with basal end straight and fairly long; inner apical arm pointing interno-posteriorly, apex rounded; outer apical arm longer, pointing posteriorly, apex enlarged. Ectophallic fold broad, laterally with lateral arms pointing postero-externally; posterior margin concave with a narrow median lobe tapering into a narrow obtuse apex. Endophallic sclerite small with two lateral plate-like structures, star-shaped; with a pair of stout and obtuse basal lobes.

Measurements (in mm). Male holotype PronL = 2.4, PronW = 4.3, FWL = 17.3, FWW = 5.9, FIIIL = 10.9, FIIIW = 2.1, TIIIL = 10.0.