taxonID	type	description	language	source
A4023F5CC977FFAC87B2666A8C80E5ED.taxon	type_taxon	Type species. Monseremus appendiculatus Ingrisch, by monotypy and original designation	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC977FFAC87B2666A8C80E5ED.taxon	synonymic_list	Monseremus appendiculatus Ingrisch, 2018 Monseremus bellus (Tan & Wahab, 2018) comb. nov.	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC977FFAC87B2666A8C80E5ED.taxon	distribution	Distribution. Borneo (East Malaysia: Sabah; Brunei Darussalam: Temburong)	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC977FFAC87B2666A8C80E5ED.taxon	discussion	Remarks. The two species are very similar in general morphology, size and colouration in both males and females. Only the female subgenital plate and male tenth abdominal tergite show clear-cut species differences (Fig. 2). The female tenth abdominal tergite and epiproct did not exhibit species differences (Fig. 3). The number of pegs on the two stridulatory files on each of the second and third tergites can be variable within species (second tergite ♂ ♀ 4 – 6, ♂ ♀ 12 – 14; third tergite ♂ 12 – 14 and ♀ 15 – 17, ♂ ♀ 16 – 19 in Monseremus bellus comb. nov. [n = 4 ♂, 4 ♀]) and do not appear show clear species differences (vs. ♂ ♀ 4 – 5, ♂ ♀ 11 – 13; ♂ ♀ 15 – 17, ♂ ♀ 16 – 18 in Monseremus appendiculatus [n = 2 ♂, 2 ♀]) (Fig. 3). Likewise, the shape of the stridulatory files are also not different between the two species (Fig. 3). Hence, these characters are unlikely to be important for species diagnosis.	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC974FFAC87B261768B27E320.taxon	description	(Figs 1, 2 A – C, 3 A, 3 B, 4)	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC974FFAC87B261768B27E320.taxon	materials_examined	New material examined. EAST MALAYSIA: • 1 ♂; Sabah, Mount Silam, near Lahad Datu; N 4.96816, E 118.17191, 735.7 ± 9.4 m. a. s. l.; on foliage of bamboo; 12 May 2022, 21 h 30; coll. M. K. Tan, T. Robillard & R. Japir (SBH. 22.34, FRC) • 1 ♀; Sabah, Mount Silam, near Lahad Datu; N 4.96878, E 11.17189, 736.1 ± 5.4 m. a. s. l.; on foliage near ground; 12 May 2022, 21 h 56; coll. M. K. Tan, T. Robillard & R. Japir (SBH. 22.39, FRC) • 1 ♂; Sabah, Mount Silam, near Lahad Datu; N 4.96800, E 118.17189, 720.8 ± 8.0 m. a. s. l.; on foliage; 12 May 2022, 23 h 00; coll. M. K. Tan, T. Robillard & R. Japir (SBH. 22.45, ZRC) • 1 ♀; Sabah, Mount Silam, near Lahad Datu; N 4.96858, E 118.17159, 727 m. a. s. l.; on foliage; 12 May 2022, 22 h 00; coll. M. K. Tan, T. Robillard & R. Japir (TR 22 - 7, MNHN).	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC974FFAC87B261768B27E320.taxon	diagnosis	Revised diagnosis. The male differs from that of Monseremus bellus comb. nov. by the medial processes of the tenth abdominal tergite: the inner margins and apices clearly separated (instead of touching each other). The female differs from that of Monseremus bellus comb. nov. by the lateral projections at the anterior margin of the subgenital plate larger, more bulbous (in lateral view), and longer in length than subgenital plate. Other minor differences include the male subgenital plate more squarish, ca. 1.7 times wider than long; ovipositor> 17.0 mm in length, longer than in Monseremus bellus comb. nov.	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC974FFAC87B261768B27E320.taxon	description	Description of the males. Habitus and colouration similar to female described in Ingrisch (2018) (Fig. 4 A). Four stridulatory files on first and second abdominal tergites, two on each tergite (Fig. 4 B): Anterior file on first tergite short with 5 peg-like teeth (n = 2 ♂). Second file, also on first tergite, longer, more than twice the length of anterior file, slightly curved, with 12 – 13 peg-like teeth (n = 2 ♂). Third file on second tergite angularly curved, with 15 – 17 peg-like teeth (n = 2 ♂); teeth more densely packed than second file; posterior file on second tergite nearly straight, with 16 – 17 peg-like teeth (n = 2 ♂). Second and posterior files of subequal length. Eighth abdominal tergite enlarged, longer than other tergites (Figs 4 C, 4 D). Ninth abdominal tergite forming a hood (Fig. 4 D). Tenth abdominal tergite with two processes in the middle; each process broadest at the base, triangular, pointing ventrally and produce into a sclerotized and obtuse apex (Fig. 2 C); the process not touching each other at the apex (Fig. 2 C). Epiproct concealed beneath tenth abdominal tergite (Fig. 2 C). Cercus long and slender, cylindrical and setose, curved internally at the posterior end, with acute apex (Fig. 2 C). Subgenital plate circa 1.7 times wider than long; anterior margin broadly concave; lateral margin straight, with some setae; posterior margin slightly emarginated in the middle, laterally forming a lobe where stylus is inserted (Fig. 2 C). Stylus short and stout, setose, with obtuse apex (Fig. 2 C). Measurements (in mm, n = 2 ♂). BL = 18.6 – 21.3, HL = 2.8, PL = 5.0 – 5.3, PW = 5.9 – 6.6, HFL = 13.1 – 15.0, HTL = 12.5 – 14.1.	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC974FFAC87B261768B27E320.taxon	distribution	Distribution. EAST MALAYSIA: Sabah (Mount Kinabalu; Mount Silam [new locality record])	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC974FFAC87B261768B27E320.taxon	biology_ecology	Ecology. This species seems to restricted to highlands of 500 – 900 m. a. s. l. This species was not found in lowland forests of eastern Sabah that the authors have sampled in (i. e., Kawag Forest Reserve, Kabili Sepilok Forest Reserve and Tabin Wildlife Reserve).	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC973FFA887B263EA8DBBE196.taxon	description	(Figs 2 D – F, 3 C, 3 D) Melaneremus? bellus Tan & Wahab, 2018: 584	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC973FFA887B263EA8DBBE196.taxon	materials_examined	Material examined. Holotype: BRUNEI DARUSSALAM: • ♀; Ulu Temburong National Park, Kuala Belalong Field Studies Centre, primary ridge dipterocarp forest; N 4.54731, E 115.15697, 103.9 ± 8.7 m. a. s. l.; on foliage of tree; 26 July 2017, 20 h 31; coll. M. K. Tan (KB. 17.76, ZRC). Paratypes: BRUNEI DARUSSALAM: • 1 ♀; Ulu Temburong National Park, Kuala Belalong Field Studies Centre, primary ridge dipterocarp forest; N 4.54629, E 115.15680, 133.9 ± 9.0 m. a. s. l.; on rattan leaf; 23 September 2016; 21 h 49; coll. M. K. Tan (KB. 16.20, ZRC) • 1 ♂; Ulu Temburong National Park, Kuala Belalong Field Studies Centre, primary ridge dipterocarp forest; N 4.54706, E 115.15720, 112.1 ± 16.0 m. a. s. l.; on foliage of tree; 23 September 2016, 22 h 14; coll. M. K. Tan (KB. 16.22, ZRC) • 1 ♂; Ulu Temburong National Park, Kuala Belalong Field Studies Centre, primary ridge dipterocarp forest; N 4.54584, E 115.15685, 103.3 ± 6.8 m. a. s. l., on foliage near ground; 25 July 2017, 21 h 30; coll. M. K. Tan (KB. 16.63, ZRC) • 1 ♀; Ulu Temburong National Park, Kuala Belalong Field Studies Centre, primary ridge dipterocarp forest; N 4.54730, E 115.15703, 99.8 ± 6.0 m. a. s. l.; on rattan leaf; 26 July 2017, 20 h 41; coll. M. K. Tan (KB. 17.77, ZRC) • 1 ♂; Ulu Temburong National Park, Kuala Belalong Field Studies Centre, primary ridge dipterocarp forest; N 4.54655, E 115.15688, 101.9 ± 7.5 m. a. s. l.; on rattan leaf; 27 July 2017, 20 h 38; coll. M. K. Tan (KB. 17.90, ZRC). Revised diagnosis. The male differs from that of M. appendiculatus by the medial processes of the tenth abdominal tergite: the inner margins and apices touching each other. The female differs from that of M. appendiculatus by the projections at the anterior margin of subgenital plate smaller, more flattened (in lateral view), and shorter in length than subgenital plate. Other minor differences include the male subgenital plate more transverse, ca. 2.5 times wider than long; the ovipositor <16.5 mm in length, shorter than M. appendiculatus.	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC973FFA887B263EA8DBBE196.taxon	distribution	Distribution. BRUNEI DARUSSALAM: Temburong	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
A4023F5CC973FFA887B263EA8DBBE196.taxon	biology_ecology	Ecology. This species is currently known to inhabit the lowland ridge dipterocarp forest.	en	Tan, Ming Kai, Japir, Razy, Chung, Arthur Y. C., Robillard, Tony (2022): A review of the genus Monseremus Ingrisch, 2018 (Orthoptera, Stenopelmatoidea Gryllacrididae) from Borneo. Zootaxa 5165 (1): 107-114, DOI: 10.11646/zootaxa.5165.1.5
