Philmontis murmur, Ingrisch, 2022

Ingrisch, Sigfrid, 2022, Revision of the genus Philmontis Willemse, 1966 and description of a new genus Philmontoides gen. nov. from New Guinea (Orthoptera: Tettigoniidae; Conocephalinae), Zootaxa 5182 (2), pp. 101-151 : 111

publication ID	https://doi.org/ 10.11646/zootaxa.5182.2.1
publication LSID	lsid:zoobank.org:pub:8920DE84-2BE6-4A68-A7F7-AC987F1F894E
DOI	https://doi.org/10.5281/zenodo.7053879
persistent identifier	https://treatment.plazi.org/id/DB181868-FF92-FFC7-FF67-D2E72C18F772
treatment provided by	Plazi
scientific name	Philmontis murmur
status	sp. nov.

Treatment

Philmontis murmur sp. nov.

Figs. 1J View FIGURE 1 , 2G–H View FIGURE 2 , 4G View FIGURE 4 , 5J–K View FIGURE 5 , 6B View FIGURE 6 , 7F–H View FIGURE 7

Holotype (male): Papua New Guinea: Western Highlands, Murmur Pass, Mt Hagen Range , elev. 2650 m (5°46’S 144°2’E), 1–30.xi.1961, leg. W.W. Brandt —depository: Naturalis Biodiversity Center Leiden ( NBC). GoogleMaps

Other specimens studied: Papua New Guinea: New Guinea (NE), Lake Sirunki , elev. 2550 m (5°23’59S 143°26’E), 16.vi.1963, leg. J. Sedlacek — 1 male ( BPBM) GoogleMaps ; Tambul , elev. 2200 m (5°55’S, 144°0’E), 2.vi.1963, leg. J. Sedlacek — 2 females ( BPBM) GoogleMaps ; Western Highlands, Murmur Pass, Mt Hagen Range , elev. 2650 m (5°46’S 144°2’E), 1-30.xi.1961, leg. W.W. Brandt — 1 female, paratype ( NBC) GoogleMaps .

Diagnosis. The new species is similar to P. nigrofasciatus Willemse, 1966 and P. angustus sp. nov., it differs from both by the shape of the male cerci that have the ventral expansion and internal excavation similar to that in P. nigrofasciatus but the bent apical area is markedly curved and stout with a single spinule at tip and carries a stout cone at base, while in P. nigrofasciatus there is a spinule in subapical area and in P. angustus the bent apical area is narrow and sub-straight and carries only at end two spinules. The female subgenital plate of P. murmur sp. nov. is similar to those of P. nigrofasciatus and P. angustus but has the basal area rather wide with the lateral extensions markedly curved and the apical projections near base strongly curved dorsad and afterward slightly sinuate.

Description. Small to medium sized species with tegmina surpassing abdomen and almost reaching or little surpassing knees of hind femur ( Fig. 1J View FIGURE 1 ). Face of uniform color, antennal scrobae and basal segments of antennae darkened or black. Pronotum elongate; disc with anterior margin faintly concave, posterior margin broadly rounded; lateral lobes long and narrow, its deepest point in males little before mid-length, in females between mid-length and beginning of apical third; auditory swelling distinct, without humeral sinus. Prosternal spines very short to almost of medium length; mesosternal lobes obtuse; metasternal lobes rounded. Femora with the following number of spines on ventral margins: (1) 4-6 / 3-7; (2) 4-6 / 0-2; (3) 9-11 / 0 (n = 6); hind knee lobes with a single spine at both sides.

Male stridulatory file on underside of left tegmen (n = 1): total length 1.05 mm; area with countable teeth 0.74 mm with 48 teeth; from base to end of distinct area 0.62 mm with 41 teeth; area with distinctly spaced, including largest teeth 0.40 mm with 26 teeth ( Fig. 4G View FIGURE 4 ). Tenth abdominal tergite wider than long, anterior margin concave, hind margin wide-roundly excised in middle, obtuse angularly projecting on both sides of excision ( Fig. 2G View FIGURE 2 ). Cerci in about basal third straight cylindrical, afterward compressed with concave internal surface that is roundly projecting ventrad, dorsal margin in that area little swollen; apical area curved mediad and strongly narrowed, rounded or faintly compressed, little curved ventrad and carrying at obtuse end a minute spinule; at curvature of cercus provided with a stout but short cone ( Figs 2G–H View FIGURE 2 ). Subgenital plate triangularly excised from base, ventral disc with converging margins that are curved dorsad and then laterad forming compressed lateral expansions with little wavy margin; central disc in apical area with lateral margins extended into long, rounded projections that carry at end minute styli. Titillators long and narrow; basal area hyaline, expanded apico-laterad; central area narrow parallel-sided, curved toward apical area and becoming moderately widened, at end provided with a sclerotized disc twisted against main titillator axis; surface of titillators largely hyaline, in widened area with light brown striation and scattered small brownish spots ( Figs 5J–K View FIGURE 5 ).

Female. Subgenital plate at very base narrowed, afterward with rather stout lateral projections bent dorsad and with obtuse dorsal end; behind those projections, central disc bent little ventrad and then strongly dorsad into a pair of narrow apical projections that are dorso-ventrally compressed and slightly wavy, tip sub-truncate ( Figs 7F–H View FIGURE 7 ).

Coloration. As other species of the genus. Scapus brown, lateral area green. Fastigium verticis and a band behind eyes medium brown. Dorsal area of tegmen of light color. Hind knees blackish brown. Female subgenital plate mostly blackish brown.

Measurements (2 males, 3 females).—Body w/wings: male 28, female 27–28; body w/o wings: male 22–23, female 21–24; pronotum: male 8.0–8.5, female 6.5–7.5; tegmen: male 18.0–18.5, female 20–21; hind femur: male 14.5–17.0, female 15.0–16.5; ovipositor: female 10.0– 11.5 mm.

Etymology. The new species is named after the type locality, noun in apposition.