Hylomesa taiwana Tsuneki, 1986

Liao, Xiang-Ping, Chen, Bin & Li, Ting-Jing, 2022, A taxonomic revision of the subfamily Myzininae from China, with a key to the Chinese species (Hymenoptera: Tiphiidae), Zootaxa 5154 (2), pp. 152-174 : 159

Hylomesa taiwana Tsuneki, 1986

( Figs 25–31 )

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) ; 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) .

Diagnosis. Female ( Fig. 25 ). Length of head ( Fig. 28 ) 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 ) with a few sparse punctures; OOD 1.48× POD and 0.42× OCD ( Fig. 28 ); pronotum ( Fig. 29 ) 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 ) 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 ) with anteriorly transverse carina, behind the carina with a row of dense punctures; T6 ( Fig. 35 ) with sparse punctures and apically impunctate and coriaceous.

Male ( Fig. 26 ). 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 ) transversely strongly striate and even carinate, and posterior one-third with a few sparse punctures; dorsum of propodeum ( Fig. 32 ) 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 ) 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 ) in lateral view.

Distribution. China (Zhejiang, Hainan, Taiwan).

Figures

FIGURES 25–36. Hylomesa taiwana, 25, 28–29, 31, 33, 35, ♀; 26–27, 30, 32, 34, 36, ♂. 25–26. Habitus, dorsal view; 27. Head, ventral view; 28. Vertex, dorsal view; 29–30. Pronotum, dorsal view; 31–32. Propodeum, dorsal view; 33–34. T1, dorsal view; 35. T6, dorsal view; 36. T7, lateral view.