Trirogma kohima Girish Kumar and Sheela, 2018

Liu, Zhi-Zhi, Ma, Li & Li, Qiang, 2024, One new species and one new record of the genus Trirogma Westwood (Hymenoptera: Ampulicidae) in China, with a key to the world species, Zootaxa 5538 (5), pp. 448-456 : 453-456

publication ID	https://doi.org/ 10.11646/zootaxa.5538.5.4
publication LSID	lsid:zoobank.org:pub:2324CE84-996D-4D2B-BB65-115F7418184A
persistent identifier	https://treatment.plazi.org/id/03A287FA-E307-DC46-62F6-FD95FC182C56
treatment provided by	Plazi
scientific name	Trirogma kohima Girish Kumar and Sheela, 2018
status

Treatment

Trirogma kohima Girish Kumar and Sheela, 2018 View in CoL , new record for China

Figs 3A–I View FIGURE 3 , 4A–I View FIGURE 4

Trirogma kohima Girish Kumar and Sheela, 2018: 114 View in CoL , ♂. Holotype: ♂, India: Nagaland: Kohima (Zoological Survey of India, Kolkata )

Material examined. 1♂, China: Zhejiang, Lanxi , 29°12N, 119°27′E, 1985.VIII.4–5 GoogleMaps , Xuexin Chen; 1♂, China: Zhejiang, Huangyan , 28°40′N, 121°15′E, 1965.VIII.5 GoogleMaps , Junhua He & Dengdi Jin; 1♂, China: Guangdong, Conghua, Liuxi River , 23°48′N , E 113°46′E, 2002. VI.24–28, Zaifu Xu; 1♂, China: Zhejiang, Jinyun , 28°41′N, 120°6′E, 1987. VI.1 GoogleMaps , Sichun Li; 2♂ 2♀, China: Yunnan, Dehong, Yinjiang , Mangyun, 24°31′N, 97°45′E, 2024. V.27 GoogleMaps , Rongfu Chen; 1♂, China: Yunnan, Honghe, Yuanyang , 23°14′N, 102°51′E, 2007.VII.24 GoogleMaps , Bing Chen; 1♀, China: Zhejiang, Songyang , 23°27′N, 119°29′E, 1983.IV.7 GoogleMaps , Hanlin Chen; 1♀, China: Yunnan, Dehong, Yinjiang, Taiping , 24°39′N, 97°51′E, 2023. VII.27. GoogleMaps

Description. Female (First description). Body length 16–26 mm. Bright metallic blue and purple luster ( Fig. 3A View FIGURE 3 ). Mandible black, yellowish brown at apex; antennae black except scape metallic blue; wings hyaline, veins and stigma dark brown; legs metallic blue, claws reddish brown. Body with white, long setae, dense on clypeus, gena and mesosoma ventrally.

Head. Mandible sharp at apex, with four small, blunt, inner teeth ( Fig. 3B View FIGURE 3 ). Clypeus approximately triangular, middle with a posterior groove, anterior margin arc-shaped convex and slightly upturned medially ( Fig. 3B View FIGURE 3 ). Frons with dense, irregular reticulation; frontal lobe ‘U’ shaped, frons immediately above platform with a deep, transverse, bisinuate groove; frontal line short, incomplete, slightly impressed ( Fig. 3B View FIGURE 3 ). Ratio of ID: F1 = 29: 32. Ocelli in triangle with a deep posterior groove. Vertex and gena with small to midsize, sparse punctures ( Figs 3B, C View FIGURE 3 ). Antennae twelve segments, ratio of F1: F2+F3 = 31: 52.

Mesosoma. Pronotum with midsize, sparse punctures; posterolateral tubercles of pronotal collar slightly raised, short cone-shaped ( Fig. 3D View FIGURE 3 ); propleurum with sparse, fine punctures and several distinct, long and oblique carinae on each side ( Fig. 3E View FIGURE 3 ); prosternum with midsize, sparse punctures. Scutum median area with dense, large punctures, each sides with dense, irregular reticular ridges, slightly raised medially; notaulus complete, crenulate ( Fig. 3D View FIGURE 3 ). Mesopleuron and mesosternum with dense, small, irregular punctures; area close to omaulus with parallel groove, crenulate; upper mesopleural groove crenulate ( Fig. 3F View FIGURE 3 ); sternaulus present, not crenulate. Scutellum not elevated, with small to midsize, dense punctures ( Fig. 3D View FIGURE 3 ). Metanotum with small, dense punctures. Propodeal enclosure approximately triangular, shiny and smooth, medially with two strong, longitudinal carinae, laterally with several strong, oblique, longitudinal ruga ( Fig. 3G View FIGURE 3 ). Posterior surface of propodeum with distinct, irregular reticulation. Lateral surface of propodeum with several short, sturdy, oblique longitudinal ruga ( Fig. 3F View FIGURE 3 ).

Wings and legs. Fore wings with three submarginal cells, vein M+Cu diverging before crossvein cu-a; hind wings with vein M+Cu diverging after crossvein cu-a ( Fig. 3H View FIGURE 3 ). Hind coxa with a small tubercle dorsally.

Metasoma. T1–T3 with fine and dense punctures; T4–T6 alutaceous. S2 with a bisinuate groove interrupted by median tubercle, not crenulate ( Fig. 3I View FIGURE 3 ).

Male. Differs from female as follows: Body length 12 mm. Mandible with two inner teeth, mid tooth large, sharp, other one blunt and small ( Fig. 4B View FIGURE 4 ). Clypeus approximately trapezoidal, anterior margin slightly emarginated medially;transverse bisinuate groove deeper( Fig.4B View FIGURE 4 ).Ratio of ID:F1 =23:19.Gena with coarser punctures.Antennae with thirteen segments, ratio of F1: F2+F3 = 10: 21. Scutum slightly concave medially and raised laterally ( Fig. 4D View FIGURE 4 ); sternaulus present, crenulate ( Fig. 4F View FIGURE 4 ). Scutellum slightly elevated, with a cone-like projection at middle ( Fig. 4D View FIGURE 4 ). Fore wings with vein M+Cu diverging at crossvein cu-a ( Fig. 4H View FIGURE 4 ). Bisinuate groove interrupted by median tubercle on S2 crenulate ( Fig. 4I View FIGURE 4 ). T1–T3 with midsized dense punctures.

Remarks. This study complements the characteristics that distinguish this species from other species of this genus: scutum with dense, large punctures medially, each sides with dense, irregular, reticular ridges. But the roughness of the entire scutum is almost the same in other species.