Zethus (Zethastrum) dolosus Bingham 1897

Yeh, Wen-Chi & Barthélémy, Christophe, 2023, A taxonomic study on the genus Zethus Fabricius from Hong Kong, with proposal of a new synonym (Hymenoptera: Vespidae: Eumeninae), Zootaxa 5339 (6), pp. 520-532 : 522-529

publication ID

https://doi.org/ 10.11646/zootaxa.5339.6.2

publication LSID

lsid:zoobank.org:pub:9D2B1934-C174-403B-8F55-33F16BDDEAB0

DOI

https://doi.org/10.5281/zenodo.8313715

persistent identifier

https://treatment.plazi.org/id/E155647A-0A32-FA17-6687-FBB8FAC1FE36

treatment provided by

Plazi

scientific name

Zethus (Zethastrum) dolosus Bingham 1897
status

 

Zethus (Zethastrum) dolosus Bingham 1897 View in CoL View at ENA

Zethus dolosus Bingham, 1897: 332 View in CoL (key), 333—“ Burma (Pegu Hills), Tenasserim ” (holotype, ♀, NHMUK).

Material examined. CHINA — Hong Kong • 1♁; Hok Tau; 22°29’25.31”N, 114°11’0.14”E; W.-C. Yeh leg.; hand net; 06 Jun. 2006 ( FACT) GoogleMaps .

MYANMAR — Tenasserim • 1♀; Haundraw Valley ; Aug, 1894; Coll. Bingham; ( MSNVE) 1♀; Carin Cheba (= Karen Hills); 900–1000 m; L. Fea leg.; 05 Dec. 1888; Giordani Soika det., 1939; ( MSNVE) 1♀; Shwegyin ; Nov. 1892; Coll. Bingham; Giordani Soika det.; ( MSNVE) .

VIETNAM — Tonkin • 1♀; Hoa-Binh; 1927; A. De. Cooman leg.; Giordani Soika det., 1966; ( MSNVE) .

Diagnostic description. Female ( Figs 12–17 View FIGURES 12–15 View FIGURES 17–21 ). Body black, antennal flagellomeres and legs dark reddish brown, tegula dark brown, wings brownish tinted. Body adorned with long whitish hairs, much longer and denser on clypeus. Lateral side of pronotum densely and deeply macropunctate on upper half and broadly costate on lower half. Propodeum coriaceous and dull, posterior depression broadly costate, lateral side coarsely foveate on upper half and broadly costate on lower half ( Fig. 12 View FIGURES 12–15 ). Clypeus narrowly truncate apically with two tiny lateral teeth, inter-antennal area broadly produced and visible in dorsal view ( Fig. 13 View FIGURES 12–15 ). Tegula broadly oval with posterior lobe incurved and pointed, inner margin roundly protruding at middle ( Fig. 15 View FIGURES 12–15 ). Propodeum with lateral carina weak, submedian carina strong at basal 3/5 of propodeum, and bf short elliptical (Fig. 16). Metasoma with Sg1 about as long as both mesosoma and Sg2 ( Fig. 14 View FIGURES 12–15 ); Sg2 distinctly petiolate with S2 distinctly angulately curved at basal 2/5 ( Fig. 17 View FIGURES 17–21 ).

Male ( Fig. 18–21 View FIGURES 17–21 ). Differing from female in the following: Clypeus almost entirely covered by a large inverted and sub-triangular yellow spot, mandibles with broad yellow stripes ( Fig. 18 View FIGURES 17–21 ). Ocelli larger with diameter around 1/3 of the distance between compound eyes and lateral ocelli ( Fig. 19 View FIGURES 17–21 ). Antennal flagellomeres darker, F11 slightly curved and bullet-shaped in ventral view ( Fig. 20 View FIGURES 17–21 ), apex rounded and reaching the base of F 8 in appressed condition ( Fig. 21 View FIGURES 17–21 ).

Remarks: Lee (1985) reported the first record of Z. dolosus from Guangdong in China, but the female he described and illustrated cannot be confirmed as being of that species; indeed, the important diagnostic feature of Z. dolosus , the angulate contour of S2, was not mentioned. Lee mentioned that the body hairs were mainly brownish and the dorsal side of propodeum was coarsely and densely punctate, both features do not correspond well to those of Z. dolosus , in which hairs are whitish and the dorsal side of propodeum is mainly coriaceous with only few punctures.

Distribution: India, Myanmar, Thailand ( Gusenleitner, 1988), Vietnam, China ( Hong Kong, Guangdong?).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Eumenidae

Genus

Zethus

Loc

Zethus (Zethastrum) dolosus Bingham 1897

Yeh, Wen-Chi & Barthélémy, Christophe 2023
2023
Loc

Zethus dolosus

Bingham, C. T. 1897: 332
1897
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