Zethus tumidus Nguyen & Carpenter, 2016

Wang, Hua-Chuan, Chen, Bin & Li, Ting-Jing, 2019, Three new species of the genus Zethus Fabricius, 1804 (Hymenoptera, Vespidae, Eumeninae) from China, with an updated key to the Oriental species, Journal of Hymenoptera Research 71, pp. 209-224 : 219

Zethus tumidus Nguyen & Carpenter, 2016 new record

Figs 46-53

Zethus tumidus Nguyen & Carpenter, 2016: 29.

Material examined.

1♂: CHINA, Hainan, Changjiang County, Bawangling , 19°07.270'N, 109°05.009'E, 11-12.VII.2007, Yibin Ba & Juntong Lang leg. (MHBU) .

Diagnosis.

Male ( Fig. 46 ): black, with yellow spot on dorso-inner margin of antennal socket and brown on S1 and the base of S2. Clypeus with reticulate punctures, apical margin distinctly emarginated ( Fig. 47 ); ocelli large, its diameter as wide as antennal socket ( Figs 47 , 48 ); occipital carina complete ( Fig. 48 ); A13 elongated ( Fig. 49 ). Notaulix developed, mesoscutum with distinct punctures ( Fig. 50 ); propodeum with lateral carina ( Fig. 51 ), submarginal carina produced into developed lamella, its lateral surface without distinct punctures and striae and with deep and large punctures along lateral carina ( Fig. 52 ). T1 2.4 × as long as wide in dorsal view, maximum width 3 × its basal width, then narrowly toward apical margin, with a medial carina which runs from basal margin to one-third of tergum, punctures on T1 large and dense ( Fig. 53 ); BS of S1 with irregular and longitudinal striae; T2 with slightly dense punctures; T2 and S2 in lateral view gradually convex from basal to apical margin, with developed apical lamella; T3 and S3 with dense punctures; T3 with thick apical lamella.

Distribution.

China: Hainan (new record); Vietnam.

Figures

Figures 46 - 53. Zethus tumidus Nguyen & Carpenter, 2016 46 habitus in dorsal view, ♂ 47 head in frontal view 48 vertex 49 antenna 50 mesosoma 51 propodeum in dorsal view 52 propodeum in lateral view 53 T 1.