Hylomesa taiwana Tsuneki, 1986

Hylomesa taiwana Tsuneki, 1986

( Figs 25–31 View FIGURES 25–36 )

Hylomesa taiwana Tsuneki, 1986 , Spec. Publ. Japa. Hymen. Assoc. 33: 73–77, holotype, ♀, paratypes, ♀, ♂, “Pempuchi, Nantou Prof.”.

Material examined. 1♀, China, Hainan Province, Changjing County, Shilu Town, Baomeiling Nature Reserve ( Malaise trap), 19°10′19.1″N, 109°38′6″E, 738 m, 3.VIII.2021 – 5.IX.2021, Heshen Wang ( CNU) GoogleMaps ; 1♂, China, Zhejiang Province, Hangzhou City, Linan District , Qingliangfeng Town , Shunxi village , 30°2′4.8″N, 118°55′50.7″E, 551 m, 1.VIII.2012, Xiaoling Ji ( YNAU) GoogleMaps .

Diagnosis. Female ( Fig. 25 View FIGURES 25–36 ). Length of head ( Fig. 28 View FIGURES 25–36 ) subequal (1.03) to width in dorsal view; basal half of clypeus with middle carina; lower half of frons with moderate punctures and upper half mostly impunctate; vertex ( Fig. 28 View FIGURES 25–36 ) with a few sparse punctures; OOD 1.48× POD and 0.42× OCD ( Fig. 28 View FIGURES 25–36 ); pronotum ( Fig. 29 View FIGURES 25–36 ) with weakly anterior carina and medially lacking, anterior half of dorsum densely punctate and posterior half sparsely punctate; lateral side of pronotum ventrally densely striate; near lateral and posterior margin of propodeum ( Fig. 31 View FIGURES 25–36 ) with dense punctures, medially with a comparatively narrow longitudinal groove and base of groove almost as wide as apex, surrounding area of the groove largely impunctate, dorsum without bordering carina between horizontal and posterior surfaces; ventral margin of hind femur medially with obtuse and short prominence; T1 ( Fig. 33 View FIGURES 25–36 ) with anteriorly transverse carina, behind the carina with a row of dense punctures; T6 ( Fig. 35 View FIGURES 25–36 ) with sparse punctures and apically impunctate and coriaceous.

Male ( Fig. 26 View FIGURES 25–36 ). Medio-apical margin of clypeus triangularly emarginated; clypeus with a strongly middle carina; frons wholly with dense punctures; vertex with sparser and smaller punctures than those on frons; pronotal transverse carina strongly present; anteriorly two-thirds of pronotum ( Fig. 30 View FIGURES 25–36 ) transversely strongly striate and even carinate, and posterior one-third with a few sparse punctures; dorsum of propodeum ( Fig. 32 View FIGURES 25–36 ) with medially irregularly reticulate carinae forming an closed area; lateral surface of propodeum anteriorly with striae extending metapleuron, rest of the surface strongly and coarsely reticulo-punctate; T1 ( Fig. 34 View FIGURES 25–36 ) anteriorly with transverse carina; S1 medially strongly carinate; dorsal surface of hind coxa longitudinally, acutely carinated; T7 with sparse punctures, length of S7 0.4× length of the T7 ( Fig. 36 View FIGURES 25–36 ) in lateral view.

Distribution. China ( Zhejiang, Hainan, Taiwan).