Trichrysis tonkinensis ( Mocsary , 1914), status revived

Rosa, Paolo, Wei, Na-sen, Feng, Jun & Xu, Zai-fu, 2016, Revision of the genus Trichrysis Lichtenstein, 1876 from China, with description of three new species (Hymenoptera, Chrysididae), Deutsche Entomologische Zeitschrift 63 (1), pp. 109-136: 123-125

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Trichrysis tonkinensis ( Mocsary , 1914), status revived


Taxon classification Animalia Hymenoptera Chrysididae

Trichrysis tonkinensis ( Mocsary, 1914), status revived  Figs 61-66, 103

Chrysis (Trichrysis) tonkinensis  Mocsáry, 1914: 25. Holotype, ♀ [not ♂], Vietnam: Tonkin ( HNHM) (examined).

Chrysis (Trichrysis) tonkinensis var. cyanescens  Mocsáry, 1914: 26. Holotype, ♀, China: Poo Chow [= Fuzhou] (BMNH).

Chrysis (Trichrysis) tonkinensis  Mocsáry: Linsenmaier 1959: 169.

Chrysis (Trichrysis) rossi  Linsenmaier, 1984: 207. Holotype, ♀, Philippines (not Chile!) ( NMLS) (examined).

Material examined.

VIETNAM: ♀, Tonkin China / tonkinensis  Mocs. det. Mocsáry typ. <handwritten in red> / red label / Holotypus Chrysis tonkinensis  Mocs. ♀ RM Bohart / id. nr. 135549 HNHM Hym.coll. ( HNHM). PHILIPPINES: ♀, San José Mindoro P.I. II.45 F.E. Skinner / Chrysis (Trichrysis) rossi  Lins. det. Linsenmaier 1973 ( NMLS). CHINA: 2♀♀, Yunnan, Jingdong, Jinping (24°27 ’14” N 100°50 ’4” E), 28.IV.2005, leg. H-s. Wang (SCAU); 1♀, Yunnan, Jingdong, 10-14.VII.1990, S. Bečvár (PRC). INDIA: 1♀, Nedungadu X.1932 P.S. Nathan ( NMLS). INDONESIA: 60♀♀, from various localities and collectors housed in NMLS: Java: Bandung, Blawan, Bogor, Jampang Tengah; Lebak, Medan, Dolok Merangir, Semarang, Sukabumi. MALAYSIA: 2♀♀, Sabah, Tuaran 24-30.III.1973 K.M. Guichard ( NMLS); 1♀, Sabah, Poring Spings 1600 ft 10.V.1973 K.M. Guichard ( NMLS); 1♀, Kota Kinabalu 20.III.1992 Inderbitzin ( NMLS).


Trichrysis tonkinensis  ( Mocsáry, 1914) is similar to Trichrysis cyanea  (Linnaeus, 1758); however it can be separated from the latter by: sharp lateral tooth of T3; dense punctuation on metasoma; body usually metallic green or light greenish-blue, with some characteristic olive green to blackish mat areas on mesosoma and metasoma; different shape of S2 black spots (Fig. 103).


Female. Body length 6.0-7.0 mm.

Head. Scapal basin deep, punctate laterally and striate medially (Fig. 62). TFC single, short, slightly inverted V-shape. Area between TFC and scapal basin slightly raised. Relative length of P:F1:F2:F3=1.0:1.6:0.7:0.6; F1 l/w=2.9; OOL=2.0 MOD; BOL=1.7 MOD; POL=1.8 MOD; MS=1.0 MOD; clypeal apex slightly concave.

Mesosoma. Pronotal groove deep, extending to 3/4 length of pronotum; lateral margins of pronotum concave medially; sublateral carina distinct and complete (Fig. 61). Metanotum depressed antero-medially. Punctuation contiguous on metanotum. Episternal sulcus and scrobal sulcus with large areolate punctures (Fig. 63).

Metasoma. Punctures on T1 and T2 geminate, with punctate interspaces (Fig. 64); punctuation decreasing in diameter toward posterior margin on T2. T2 and T3 with weak median carinae. T3 prepit bulge medially convex; pit row with small and round separated pits. Apex of T3 with three teeth similar in size, with interval between median tooth and lateral tooth straight or occasionally slightly convex (Fig. 65). S2 black spots small (Figs 66, 103), medially fused.

Colouration. Body metallic bluish-green to green, with golden reflection on face and sternites. Scape and pedicel metallic green, flagellum black. Tegula brown, with weak metallic reflections. Legs metallic green, with tarsi black.

Male. Unknown.


One specimen in NMLS labelled as collected from nest of Pison obliteratum  Smith, 1858 ( Crabronidae  ) by J. van der Vecht.


China (Fujian, Yunnan); Vietnam ( Mocsáry 1914); Philippines ( Linsenmaier 1984); India, Indonesia, Malaysia (new records).


Tsuneki (1961: 374) gave the description and line drawings of Chrysis (Trichrysis) tonkinensis  based on one specimen collected in Thailand (Doi Inthanon), without checking its type. The drawings do not match the type. The characteristics given by Tsuneki (1961) more closely resemble Trichrysis luzonica  ( Mocsáry) or Trichrysis triacantha  ( Mocsáry). Therefore the synonym proposed by Tsuneki, Trichrysis bicarinata  (Tsuneki) = Trichrysis tonkinensis  is incorrect.

Linsenmaier (1984) described Chrysis (Trichrysis) rossi  based on a specimen collected at San José, Mindoro P.I. [Philippine Islands]. Linsenmaier (1984) erroneously considered locality San José as a Chilean locality. Later Kimsey and Bohart (1991) recognized right locality, and placed Trichrysis rossi  and Trichrysis tonkinensis  in synonymy with Trichrysis triacantha  ( Mocsáry) without type examination of the latter. Trichrysis tonkinensis  and Trichrysis triacantha  are similar, but can be separated by different colouration, with a characteristic olive green or bluish matt colouration dorsally on Trichrysis tonkinensis  and non metallic tegula (fully metallic in Trichrysis triacantha  ); TFC simple, without branches (double and usually with branches in Trichrysis triacantha  ); and different shape of S2 black spots (Figs 66, 72, 103, 104). We here revalidate Trichrysis tonkinensis  ( Mocsáry, 1914).