Hylomesa longiceps ( Turner, 1918 )

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 : 157-159

Hylomesa longiceps ( Turner, 1918)

( Figs 16–24 )

Plesia tricolor (Smith) : Magretti, 1892, Ann. Mus. Civ. Stor. Nat. Genova (2) 12: 258, 259 (in part, misidentified ♂ from Burma); Turner, 1909, Ann. Mag. Nat. His., (8)3: 480 (misidentified ♀ from Assam).

Myzine tricolor Smith, 1858 , Jour. Linn. Soc., Zool. ii: 91, ♀; Bingham, 1897, Hym., 1 (Wasps and Bees): 66 (misidentified ♀ from Assam). Synonym of Elis (Mesa) tricolor (Smith) by Turner, 1912, Proc. Zool. Soc. Lond. 46: 720.

Elis (Mesa) tricolor (Smith) : Turner, 1912, Proc. Zool. Soc. 1912: 720 (in part, misidentified ♀ from Assam and W India). Synonym of Hylomesa longiceps by Krombein, 1968, Proc. Nat. Muse. 124 (3644): 13.

Elis (Mesa) tricolor longiceps Turner, 1918 , Ann. Mag. Nat. His. (9) 1: 87 (♀, Dibrughur, Assam; type in British Museum); Rohwer, 1921, Phi. Jour. Sci., 19: 90 (♀, ♂, Philippines). Synonym of Hylomesa longiceps by Krombein, 1968, Proc. Nat. Muse. 124 (3644): 13.

Mesa tricolor longiceps (Turner) ; synonym of Hylomesa longiceps by Krombein, 1968, Proc. Nat. Muse. 124 (3644): 13.

Hylomesa longiceps ( Turner, 1918) : Krombein, 1968, Proc. Nat. Muse. 124 (3644): 12–15, ♀, ♂; Ceylon, India, Assam, Burma, Malaysia, Philippines; Krombein, 1982, Smi. Con. Zool. 374: 81.

Material examined. 1♀, China, Guangxi Zhuang Autonomous Region, Dongxing City, Dongxing Town , Zhushan Village , 21°32′44.63″N, 108°3′15.43″E, 8.59 m, 08.VIII.2018, Xudong Li ( CNU) .

Diagnosis. Female ( Fig. 16 ). Length of head ( Fig. 18 ) subequal (0.94–1.0×) to width in dorsal view, posterolateral angles rounded; clypeus ( Fig. 17 ) with weak carina on basal half or two-thirds; lower half of frons with dense punctures and upper half with sparse punctures; anteriorly one-third of vertex ( Fig. 18 ) with a few dense punctures and posterior two-thirds almost impunctate; OOD 2.17–2.43× POD, and 0.42–0.44× OCD, anterior ocellus closer to apex of antennal tubercles than to occiput; pronotum ( Fig. 19 ) anteriorly with strong carina, the anterior half with dense punctures, posterior half with very sparse and small punctures; lateral side ( Fig. 20 ) of pronotum ventrally with dense striae; propodeum ( Fig. 22 ) with broad median groove, and base of groove much wider than apex, near median groove with shallow and minute punctures and almost smooth, ventral surface of hind femur ( Fig. 21 ) medially with obtuse and short prominence; T1 ( Fig. 23 ) with anteriorly strong carina, behind the carina with dense punctures, wholly with sparse punctures and even almost impunctate, subapical groove indistinct; anterior half of T6 ( Fig. 24 ) with sparse and minute punctures, medial half with moderate to dense and deep punctures and apically impunctate and coriaceous.

Male. Clypeus with strong carina at basal two-thirds or three-fourths; length of head 0.85–0.87× width; frons largely with dense punctures; vertex with comparatively smaller and sparser punctures; OOD 1.9–2.8× POD, and 0.59–0.71× OCD; pronotum anteriorly strongly carinate, behind the carina with weak to strong and dense punctures (some contiguous) in a few transverse grooves; propodeum irregularly reticulate, and with narrow median groove containing a few transverse striae, dorsum with bordering carina between horizontal and posterior surfaces; lateral side of propodeum anteriorly with a few strong striae, the rest of surface with coarse and dense punctures or irregularly reticulate; T1 anteriorly with strongly transverse carina and with sparse punctures. No male specimens were collected in our study, and the description is referred to Krombein (1968) and Turner (1918).

Distribution. China (Guangxi); Sri Lanka; India; Burma; Malaysia; Philippines.

Remarks. This is the first record of this species in China.

Figures

FIGURES 16–24. Hylomesa longiceps, ♀. 16. Habitus, dorsal view; 17. Head, frontal view; 18. Vertex, dorsal view; 19. Prono- tum, dorsal view; 20. Pronotum, lateral view; 21. Hind femur and tibia, dorsal view; 22. Propodeum, dorsal view; 23. T1, dorsal view; 24. T6, dorsal view.