Hylomesa longiceps ( Turner, 1918 )

Hylomesa longiceps ( Turner, 1918)

( Figs 16–24 View FIGURES 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) GoogleMaps .

Diagnosis. Female ( Fig. 16 View FIGURES 16–24 ). Length of head ( Fig. 18 View FIGURES 16–24 ) subequal (0.94–1.0×) to width in dorsal view, posterolateral angles rounded; clypeus ( Fig. 17 View FIGURES 16–24 ) 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 View FIGURES 16–24 ) 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 View FIGURES 16–24 ) anteriorly with strong carina, the anterior half with dense punctures, posterior half with very sparse and small punctures; lateral side ( Fig. 20 View FIGURES 16–24 ) of pronotum ventrally with dense striae; propodeum ( Fig. 22 View FIGURES 16–24 ) 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 View FIGURES 16–24 ) medially with obtuse and short prominence; T1 ( Fig. 23 View FIGURES 16–24 ) 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 View FIGURES 16–24 ) 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.