Mirolotmia?dinocephala Gorochov, 2021

Mirolotmia?dinocephala Gorochov, 2021 View in CoL

( Figs 1–7 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 )

Mirolotmia dinocephala Gorochov, 2021: 135 View in CoL View Cited Treatment . New material examined. PHILIPPINES. • 1♂; Mindanao, Misamis Occidental, Municipality of Conception   GoogleMaps , Barangay Upper Potongan   GoogleMaps at the foothold of Mt. Malindang Ranges   GoogleMaps ; N8.4179, E123.6138; 24 April 2024; grassland in residential areas, on the land dwelling under the roots of a tree; coll. R.R. Rivera, J. Banquil & R. Lumbay   GoogleMaps ; PNM ( Figs 1A, 1B View FIGURE 1 , 2B, 2D, 2F View FIGURE 2 , 3 View FIGURE 3 ) • 4♂; same locality as above; 26–27 March 2025; burrowing in the clay soil near household areas or under carabao grass species; coll. R.R. Rivera   GoogleMaps ; ZRC • 1♂; Mindanao   GoogleMaps , Agusan del Sur, Municipality of Esperanza   GoogleMaps , Barangay Poblacion   GoogleMaps ; N8.5856914, E125.708947, 25 m. a.s.l; 7 July 2022, 19h50; coll. J.A. Salvador, M. Salvador, V. Campos, J. Pogado & M. Pogado; 9JAS1207 (MNHN) ( Figs 1C, 1D View FIGURE 1 , 2A, 2C, 2E, 2G–I View FIGURE 2 ).

Comparison of morphology. The males from Mindanao differ from the types of Mirolotmia dinocephala Gorochov, 2021 View in CoL from New Guinea by the pseudepiphallic lophi [posterolateral epiphallic lobe] in lateral view not pointing dorsad at the apex ( Fig. 3 View FIGURE 3 ) and the frons in lateral view less protruding anteriorly and not surpassing scapes ( Figs 2A, 2B, 2D, 2E View FIGURE 2 ). There are no observable and consistent differences in the pseudepiphallic parameres [ectoparameres]: in ventral view appears flattened, complex with both membranous and sclerotized parts; not surpassing pseudepiphallic lophi and posteromedial lophi; its proximal (main) sclerite (pms) broadly triangular with fold at middle; its apical (medial) sclerite (as) with fold and inner parts membranous and apex subacute ( Fig. 3B, 3D, 3E View FIGURE 3 ).

FW: The harp area is consistent among males; very large with 4 oblique veins (2 strongly curved and sinuous long posterior veins and 2 sub-straight [curved at posterior end] small anterior vein). The shape of the mirror (d1) varies among the males from Mindanao, ranging from simply divided into half by dividing vein or into numerous smaller cells ( Figs 2F, 2G View FIGURE 2 , 4 View FIGURE 4 ).

Ecology. The species in Mindanao was found in grassland areas near urban areas ( Fig. 5 View FIGURE 5 ); the males call at the opening of burrow under trees ( Fig. 6 View FIGURE 6 ).

Type locality. INDONESIA: Irian Jaya Barat [= West Papua]: Waigeo Island, environs of Saporkren Village .

Distribution. INDONESIA ( West Papua); PHILIPPINES (Mindanao Island: Misamis Occidental, Agusan del Sur) [new locality records].

Calling song ( Fig. 7 View FIGURE 7 ). The first calling song from Agusan del Sur consists of an echeme made up of 8–9 syllables. The echeme duration is 0.11± 0.01 s (0.10– 0.12 s), and the interval between consecutive echemes is 0.15± 0.02 s (0.13– 0.20 s). The average syllable duration is 7.2±0.8 ms (5.5–8.4 ms), the average interval between syllables is 6.0±0.8 ms (4.6–8.1 ms), and the average syllable period is 13.2±0.5 ms (11.6–14.0 ms). The call spectrum is made up of a harmonic series, with the energy peaking at the fundamental frequency of 6.25 kHz. The second and third harmonic peaks are 12.32±0.18 kHz (12.25–12.75 kHz) and 18.61±0.23 kHz (18.25–18.75 kHz) .

The second calling song from Mount Malindang consists of a continuous trill. The average syllable duration is 11.5±0.2 ms (11.1–11.9 ms), the average interval between syllables is 6.5±0.2 ms (6.0–7.1 ms), and the average syllable period is 18.0±0.1 ms (17.7–18.5 ms). The energy peaking at the fundamental frequency of 4.77±0.04 kHz (4.59–4.78 kHz). The second and third harmonic peaks are 9.28 kHz and 18.51±0.08 kHz (18.47–18.66 kHz).