Trirogma lobusicurvus Liu et Li, 2024
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publication ID |
https://doi.org/ 10.11646/zootaxa.5538.5.4 |
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publication LSID |
lsid:zoobank.org:pub:2324CE84-996D-4D2B-BB65-115F7418184A |
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persistent identifier |
https://treatment.plazi.org/id/03A287FA-E300-DC4B-62F6-FD90FB582CC6 |
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treatment provided by |
Plazi |
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scientific name |
Trirogma lobusicurvus Liu et Li |
| status |
sp. nov. |
Trirogma lobusicurvus Liu et Li , sp. nov.
LSIDurn:lsid:zoobank.org:act: 2ACEB082-12D3-40AC-8E8D-9522191A5F8C
Figs 1A–I View FIGURE 1 , 2A–I View FIGURE 2
Material examined: Holotype: ♀, China: Guangdong, Qingyuan, Yangshan, Nan Mountain , 24°28′N, 112°34′E, 2007.X.16–18, Zaifu Xu GoogleMaps . Paratype: 1♀, China: Yunnan, Jinghong, Menghai, Bulang Mountain , 21°37′N, 100°23′E, 2021.X.15, Yongsheng Pu GoogleMaps ; 1♂, China: Yunnan, Yuxi, Xinping, Mopan Mountian , 23°56′N, 101°58′E, 2020. VIII.9–IX.9, Zhizhi Liu GoogleMaps .
Diagnosis. The new species clearly differs from T. caerulea Westwood, 1841 by the following characteristics: basal margin of frontal lobe extended on both sides, forming curve, folded lobe-like projection (margin of base of frontal lobe not extended in T. caerulea ); posterolateral tubercles of pronotal collar slightly raised, not sharp (posterolateral tubercles of pronotal collar strongly raised and sharp in T. caerulea ); notaulus not crenulate (notaulus crenulate in T. caerulea ); upper mesopleural groove not crenulate (upper mesopleural groove crenulate in T. caerulea ); male scutellum without projection (male scutellum with a cone-like projection at middle in T. caerulea ); sternaulus lacked (sternaulus present in T. caerulea ).
Description. Female. Body length 17–20 mm. Body with bright metallic blue and purple luster. Mandible black, reddish 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 three small, blunt, inner teeth. Clypeus convex basally, transversely concave medially, anterior margin with arc-shaped prominence, slightly upturned medially ( Fig. 1B View FIGURE 1 ). Frons with large, dense punctures. Frontal lobe ‘U’ shaped, margins of base extended on both sides, forming curve, folded lobe-like projection; frontal line long, incomplete, slightly impressed ( Fig. 1B View FIGURE 1 ). Ratio of ID: F1 = 23: 26. Ocelli in triangle with a deep posterior groove. Vertex and gena with small to midsize, sparse punctures ( Figs 1B, C View FIGURE 1 ). Antennae twelve segments, ratio of F1: F2+F3 = 26: 41.
Mesosoma. Pronotum with small to midsize, sparse punctures; posterolateral tubercles of pronotal collar slightly raised, not sharp ( Fig. 1D View FIGURE 1 ); propleurum with sparse, fine punctures and several distinct, long and oblique carinae on each side ( Fig. 1E View FIGURE 1 ); prosternum with midsize, sparse punctures. Scutum with small, dense punctures; notaulus complete, not crenulate ( Fig. 1D View FIGURE 1 ). Mesopleuron and mesosternum with dense, fine irregular punctures; area close to omaulus with parallel groove, not crenulate; upper mesopleural groove not crenulate; sternaulus lacked ( Fig. 1F View FIGURE 1 ). Scutellum not elevated, with small to midsize, dense punctures ( Fig. 1D View FIGURE 1 ). Metanotum with small, dense punctures ( Fig. 1G View FIGURE 1 ). Propodeal enclosure approximately triangular, shiny and smooth, medially with two strong, longitudinal carinae, laterally with several strong, oblique, longitudinal ruga ( Fig. 1G View FIGURE 1 ). Posterior surface of propodeum with distinct, irregular reticulation. Lateral surface of propodeum with several short, sturdy, oblique longitudinal ruga ( Fig. 1F View FIGURE 1 ).
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. 1H View FIGURE 1 ). 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 ( Figs 1A, I View FIGURE 1 ).
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. 2B View FIGURE 2 ). Clypeus approximately trapezoidal, anterior margin slightly emarginated medially ( Fig. 2B View FIGURE 2 ). Folded lobe-like projection more distinct ( Figs 2B, C View FIGURE 2 ). Ratio of ID: F1 = 21: 17. Gena with coarser punctures. Antennae thirteen segments, ratio of F1: F2+F3 = 11: 20. Scutum slightly concave medially and raised laterally ( Fig. 2D View FIGURE 2 ). Scutellum slightly elevated medially ( Fig. 2D View FIGURE 2 ). Upper mesopleural groove crenulate ( Fig. 2F View FIGURE 2 ). Fore wings with vein M+Cu diverging at crossvein cu-a ( Fig. 2H View FIGURE 2 ). Bisinuate groove interrupted by median tubercle on S2 crenulate. T1– T3 with midsize and dense punctures ( Figs 2A, I View FIGURE 2 ).
Distribution. China (Guangdong, Yunnan).
Etymology. The specific name curvilobus originates from the Latin word “ curv- ” and “ lobus ”, refers to basal margins of the frontal lobe extended on both sides, forming curve, folded lobe-like projections.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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