Trichrysis triacantha ( Mocsáry, 1889 )

Rosa, Paolo, Aswathi, Pokkattu Gopi, Wiśniowski, Bogdan & Bijoy, Chenthamarakshan, 2022, Preliminary revision of the Indian cuckoo wasp genera Trichrysis Lichtenstein, 1876 and Chrysidea Bischoff, 1910, with description of a new species (Hymenoptera, Chrysididae), European Journal of Taxonomy 852, pp. 117-143 : 133-134

Trichrysis triacantha ( Mocsáry, 1889)

Fig. 7I

Chrysis (Trichrysis) triacantha Mocsáry, 1889: 325 .

Chrysis (Trichrysis) triacantha – du Buysson 1893: 247. — Bischoff 1913: 46.

Chrysis triacantha Mocsáry – du Buysson 1896: 471 (in key). — Bingham 1903: 436 (in key), 453, fig. 154; 1908: 348. — Jonathan et al. 1977: 86.

Trichrysis triacantha – Rosa et al. 2021a: 83 , fig. 85. — Rosa & Halada 2021: 210 .

Material examined

Syntypes INDONESIA • 1 ♀; “Plason, Sumatra 877-2; triacantha det. Mocsáry Type”; NHMW • 1 ♀; Sumatra; “ triacantha det. Mocsáry ” • 1 ♀; Plason , Java; “ 1878 II; triacantha type det. Mocsáry ”.

Other material INDIA • 4 ♀♀; Kerala, E of Kothamangalam ; 10°05.1′ N, 76°39.1′ E; alt. 150 m; 1 May 2005; M. Halada leg.; MHC, PRC; • 1 ♀, Kerala, Thenmala ; 8°58.0′ N, 77°03.5′ E; 5 May 2005; M. Halada leg.; MHC • 1 ♀; Kerala, Thrissur, Mulankunnathukavu ; 10°35′ N, 76°12′ E; 1 Feb. 2021; T.B. Suryanarayanan leg.; CCSERLC162; SERL • 1 ♀; Kerala, Wayanad, Kambalakkad ; 11°40′ N, 76°05′ E; 29 Mar. 2020; P.G. Aswathi leg.; CCSERLC42; SERL .

Distribution

India (Bihar, Kerala, West Bengal); China (Fujian, Taiwan, Guangdong, Hong Kong, Hainan, Yunnan) ( Rosa et al. 2016). Widely distributed in the Oriental Region ( Kimsey & Bohart 1991).

Remarks

Rosa et al. (2016) considered Trichrysis triacantha as a possible synonym of T. vestigator (Smith, 1858) based on illustrations of the apical margin of T3 provided by Bohart (1988: fig. 6) and Kimsey & Bohart (1991: fig. 150c). Thanks to the kind help of James Hogan (OUMNH), we examined pictures of the type of T. vestigator and can state that the two taxa are closely related. Actually, the intervals between the median tooth and the lateral teeth of the type specimen are straight and not convex, as shown in the illustrations of Bohart (1988) and Kimsey & Bohart (1991). Taking into account the high variability of this species, as recorded by Rosa et al. (2016), based on specimens collected in the same locality in China, we agree that the two species could be conspecific; however, examination of more material is needed prior to proceeding with this synonymy.

Figures

Fig. 7. Species of Trichrysis Lichtenstein, 1876, shape of black spots on S2. A. T. inops (Gribodo, 1884). B. T. imperiosa (Smith, 1874). C. T. lusca (Fabricius, 1804). D. T. poseidonia sp. nov. E. T. lanka (Bingham, 1903). F. T. hexapholis Bohart, 1988 (modified from Bohart 1988). G. T. scioensis (Gribodo, 1879). H. T. tonkinensis (Mocsáry, 1914). I. T. triacantha (Mocsáry, 1889). J. T. excisifrons (Mocsáry, 1912).