taxonID	type	description	language	source
254B87902A6B52694ABCF9F7CC427783.taxon	description	Fig. 1	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A6B52694ABCF9F7CC427783.taxon	materials_examined	Type material. Holotype: female, China, Sichuan Province, Jiuzhaigоu County, N Dajisi Village, 33 23 ʹ 32 ʺ N, 103 48 ʹ 11 ʺ E, h = 4205 m, 23. VI. 2012 (I. Belousov, G. Davidian) (ZISP). Paratype: 1 male, with same data as holotype (ZISP).	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A6B52694ABCF9F7CC427783.taxon	description	Description. Female. Body length 3.3 mm; length of antenna 2.6 mm; length of fore wing 2.9 mm. Head smooth, shining, with sparse setae, wider than mesosoma at level of tegulae. Eyes large, widely oval, with sparse short setae, below converging to clypeus. Face with long dense setae, its width 1.4 × height in middle. Malar space about 0.3 × height of eye. Eye in dorsal view 1.3 × longer than temple. Clypeus trapezoidal, with ten long setae, width of clypeus 1.4 × its medial height. Tentorial index = 0.16. POL 2.0 × Od. Maxillary palp with 4 segments, labial palp with 3 segments. Antenna filiform, with 18 antennomeres, covered by semi-erect setae, these setae about as long as width of basal flagellomeres. F 1 and F 2 almost same length, their length about 4.0 × width in middle. F 1 without rhinaria (multiparous plate sensilla), F 2 with two rhinaria (if studied from one side). Mesosoma. Mesoscutum with distinct notauli only in anterior one third. Propodeum with closed medial areola and additional short carinae around spiracles. Wings. Fore wing with closed central cell. Pterostigma about 7.5 × longer than its maximum width and 3.0 × longer than metacarp (1 - R 1). First abscissa of radial vein (r) 0.8 × as long as metacarp (1 - R 1), second abscissa (3 - SR) about as long as metacarp (1 - R 1). First radiomedial vein (2 - SR) almost absent near recurrent vein (m-cu). Metasoma. Petiole rugose, with distinct spiracular tubercles, length of petiole 2.0 × its width at level of spiracles. Ovipositor sheath plow-shape, narrowly subtriangular basally, widely obtuse apically. Length of sheath 3.5 × its maximum width and 5.6 × its apical width. Colour. Vertex dark brown, frons brownish, face light brown, mouthparts yellowish, apex of mandible infuscate. Antenna dark brown. Sternites, propleuron and legs yellowish brown. Meso- and metathorax, propodeum, petiole, remaining metasoma and ovipositor sheath brown. Male. Body length 1.7 mm; length of antenna 1.9 mm; length of fore wing 2.1 mm. Head smooth, shiny, with sparse setae, wider than mesosoma at level of tegulae. Eye large, wide oval, with sparse short setae. Maxillary palp with 4 segments, labial palp with 3 segments. Antenna with 19 antennomeres, with long semi-erect setae, length of setae almost equal to medial width of antennomeres. F 1 and F 2 subequal in length. F 1 2.5 × and F 2 2.2 × longer than its width in middle. Mesoscutum with distinct notauli in anterior one third. Propodeum with closed central areola. Fore wing. Pterostigma 6.2 × longer than its medial width, 3.3 × longer than metacarp (1 - R 1). First abscissa (r) of radial vein equal to its second abscissa (3 - SR) and almost equal to metacarp (1 - R 1). Petiole rugose, with distinctly protruding spiracular tubercles, its length 2.5 × width at level of spiracles. Body monochromatic dark brown.	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A6B52694ABCF9F7CC427783.taxon	biology_ecology	Hosts. Unknown. Bionomics. Specimens were collected by shaking the bush Dasiphora fruticosa (L.) O. Schwarz (Rosaceae).	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A6B52694ABCF9F7CC427783.taxon	etymology	Etymology. This new species is named in honour of Dr Genrik E. Davidian, one of the collectors of the type specimens. Comparative diagnosis. According to number of antennomeres, the new species is similar to M. montenegrinus Petrović & Tomanović, 2023 (Tomanović et al. 2023), parasitoid of the aphid Amphorophora sp. on Rubus sp., as well as to the Canadian M. parvipalpus Čkrkić, Petrović & Tomanović, 2019 (Čkrkić et al. 2019). Monoctonus genriki sp. nov. differs from M. montenegrinus by short petiole and wide ovipositor sheath (in M. montenegrinus, petiole 2.6 × longer than its width at level of spiracles, and ovipositor sheath 4.0 × longer than its maximum width). The new species also differs from M. рarvipalpus by number of segments in labial palps and presence of notauli in the anterior one third of mesoscutum (in M. рarvipalpus labial palps with 1 segment and notauli completely absent). From collected in the same time and locality Monoctonus sichuanicus sp. nov. the new species differs in having antenna with 18 antennomeres, propodeum with closed central areola, petiole of metasoma short and its length 2.0 × width at level of spiracles, and ovipositor sheath 3.5 × its maximum width. In М. sichuanicus sp. nov. antenna has 16 antennomeres, propodeum without closed areola and with only two anteriorly divergent carinae, petiole of metasoma long, with its length 2.5 × width at level of spiracles, and ovipositor sheath 2.5 × its maximum width.	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A6B526F4ABCFC73CCA070C3.taxon	type_taxon	Type species: Aphidius caricis Haliday, 1833	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A6B526F4ABCFC73CCA070C3.taxon	discussion	Both new species described herein from China (Sichuan) belong to the Monoctonus nervosus species group, which is characterised (according to van Achterberg 1989) by the presence of 16 – 17 antennomeres in female, presence of the recurrent (m-cu) and first radiomedial (2 - SR) veins in the fore wing, and also biotopical association with the hosts mainly from herbaceous plants. According to recent molecular, morphological and trophic investigations, the M. nervosus species group is a mixed aggregation and comprises species with different numbers of antennomeres and labial palp segments, as well as variable shapes of the ovipositor sheath (Čkrkić et al. 2019). The following species belong to this species group: M. allisoni Pike & Starý, 2003; M. brachyradius Čkrkić, Petrović & Tomanović, 2019, M. canadensis Čkrkić, Petrović & Tomanović, 2019, M. indiscretus Čkrkić, Petrović & Tomanović, 2020, M. inexpectatus Čkrkić, Petrović & Tomanović, 2019, M. leclanti Tomanović & Starý, 2002, M. montenegrinus Petrović & Tomanović, 2023, M. nervosus (Haliday, 1833), M. pacificus Pike & Starý, 2000, M. parvipalpus Čkrkić, Petrović & Tomanović, 2019, and M. paulensis (Ashmead, 1902) (Čkrkić et al. 2019, 2020).	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A69526F4ABCFCE6CA5E76CF.taxon	description	http: // zoobank. org / 0 C 27 AD 1 E-E 09 F- 4 D 3 F- 858 F- 020 ADDDFFF 01 Fig. 2	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A69526F4ABCFCE6CA5E76CF.taxon	materials_examined	Type material. Holotype: female, China, Sichuan, Jiuzhaigоu County, N of Dajisi Village, 33 23 ʹ 32 ʺ N, 103 48 ʹ 11 ʺ E, h = 4205 m, 23. VI. 2012 (I. Belousov, G. Davidian) (ZISP).	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A69526F4ABCFCE6CA5E76CF.taxon	description	Description. Female. Body length 2.3 mm; length of antenna 1.6 mm; length of fore wing 2.4 mm. Head smooth, shining, with sparse setae, wider than mesosoma at level of tegulae. Eyes large, widely oval, with sparse short setae in its lower half, below converging to clypeus. Face subsquare, its width almost equal to height. Malar space 0.8 × height of eye. Eye in dorsal view 2.0 × longer than temple. Clypeus width 1.8 × its medial height. Tentorial index = 0.3. POL 2.0 × Od. Maxillary palp with 4 segments, labial palp with 3 segments. Antenna filiform, with 16 antennomeres, covered by long semi-erect setae, these setae about as long as width of basal flagellomeres. Length of F 1 5.5 × its width in middle; length of F 2 5.0 × its width in middle. F 1 without rhinaria, F 2 with one rhinaria (lateral view). Mesosoma. Mesoscutum with distinct notauli only in anterior one third. Propodeum without closed areola delineated by carinae, in posterior half only with two divergent anteriorly carinae. Wings. Fore wing with closed central cell. Pterostigma about 7.3 × longer than its maximum width and 3.0 × longer than metacarp (1 - R 1). First abscissa of radial vein (r) 0.6 × as long as metacarp (1 - R 1), second abscissa (3 - SR) 1.2 × longer than metacarp (1 - R 1). First radiomedial vein (2 - SR) strongly desclerotised near recurrent vein (m-cu). Metasoma. Petiole rugose, with distinctly protruding spiracular tubercles, length of petiole 2.5 × its width at level of spiracles. Ovipositor sheath plow-shape, narrowly subtriangular basally, obtuse apically. Length of sheath 2.6 × its maximum width and 7.0 × its apical width. Colour. Head, metasoma and sheath brown, antenna and mesosoma pale brown, clypeus, mouthparts, legs and petiole yellowish. Male. Unknown.	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A69526F4ABCFCE6CA5E76CF.taxon	biology_ecology	Hosts. Unknown. Bionomics. Specimen was collected by shaking the bush Dasiphora fruticosa (L.) O. Schwarz (Rosaceae).	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A69526F4ABCFCE6CA5E76CF.taxon	etymology	Etymology. Named after Sichuan Province of China, where specimen of this new species was collected.	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
254B87902A69526F4ABCFCE6CA5E76CF.taxon	diagnosis	Comparative diagnosis. The new species has diverging anteriorly carinae on posterior half of propodeum and thus resembles Monoctonus hispanicus Tizado, 1992, parasitoid of aphid Nasonovia (Neokakimia) sp. on Saxifraga clusii Gouan (Tizado 1992). However, it differs from the latter by the number of antennomeres (16) (in M. hispanicus antenna with 11 antennomeres). Monoctonus sichuanicus sp. nov. differs also from other species of the M. nervosus species group by the absence of the closed central areola on propodeum. The differences of this new species with M. genriki sp. nov. are shown after description of latter species.	en	Davidian, Elena M., Belokobylskij, Sergey A. (2025): Two new species of the genus Monoctonus Haliday, 1833 from the subtribe Monoctonina (Hymenoptera: Braconidae: Aphidiinae) from mountains of China. Zootaxa 5696 (4): 590-596, DOI: 10.11646/zootaxa.5696.4.7, URL: https://doi.org/10.11646/zootaxa.5696.4.7
