Lien T. P. Nguyen

Vespidae of Viet Nam (Insecta: Hymenoptera) 2. Taxonomic Notes on Vespinae

Abstract The taxonomy of the Vietnamese species of the social wasp subfamily Vespinae is revised. Vespa auraria Smith, 1852, is synonymized under V. velutina Lepeletier, 1836. Vespula koreensis (Radosz-kowski, 1887) is recorded as new for Viet Nam, and its color characters are described. A key to vespine species of Viet Nam based on morphological characters is provided.

Vespidae (Hymenoptera) of Vietnam 3: Synoptic key to Vietnamese species of the polistine genus Ropalidia, with notes on taxonomy and distribution

Nineteen species of the paper wasp genus Ropalidia are recorded from Vietnam, of which three are new records for Vietnam. A key to all of the species, distribution records and taxonomic remarks are given. New synonymies proposed are: Ropalidia bicolorata parvula van der Vecht, 1962, under R. bicolorata van der Vecht, 1962; R. hongkongensis juncta van der Vecht, 1941, under R. hongkongensis (de Saussure, 1854); Icaria jucunda Cameron, 1898, and R. marginata sundaica van der Vecht, 1941, under R. marginata (Lepeletier, 1836); R. rufocollaris atrata van der Vecht, 1941, under R. rufocollaris (Cameron, 1900); and R. stigma rufa van der Vecht, 1941 and R. stigma nigrolineata van der Vecht, 1962, under R. stigma (Smith, 1858).

AN ANNOTATED DISTRIBUTIONAL CHECKLIST OF SOLITARY WASPS OF THE SUBFAMILY EUMENINAE (HYMENOPTERA: VESPIDAE) OF VIETNAM

Abstract A total of 45 species belonging to 26 genera of the solitary wasp subfamily Eumeninae are listed, including 13 species and six genera that are newly recorded for Vietnam. The references for distribution in Vietnam are provided. Ectopioglossa keiseri nigra Giordani Soika is synonymized under Ectopioglossa keiseri van der Vecht; the male of this species is also described for the first time.

Taxonomic Notes on the Vespinae of Yunnan (Hymenoptera: Vespidae)

ABSTRACT In recent years, five new species of Vespinae have been described from Yunnan Province, China. A thorough assessment of these taxa, including study of color differences and compilation of measurements of specimens from six entomological collections, shows that the new taxa are merely variants of existing, nominal species. Thus, all five are synonymized here, as follows: Vespa hekouensis Dong and Wang, and Vespa maguanensis Dong = Vespa analis Fabricius; Vespula yulongensis Dong and Wang = Vespula flaviceps (Smith); Vespula nujiangensis Dong and Wang = Vespula orbata (du Buysson); and Vespula gongshanensis Dong = Vespula rufa (Linnaeus), all NEW SYNONYMY. The synonymies bring the current number of vespine species recognized worldwide to 67.

Taxonomic notes on the paper wasps of the genus Ropalidia in the Indian subcontinent (Hymenoptera: Vespidae)

The taxonomy of Ropalidia wasps in the Indian subcontinent is revised, recognizing 26 species in the subcontinent. Their diagnostic characteristics are summarized in a key to species. New synonymies proposed in the present study are: R. bicolorata shiva Das and Gupta, 1989 under R. bicolorata van der Vecht, 1962; R. colorata sordida van der Vecht, 1941 under R. colorata van der Vecht, 1941; R. rodialipa Lambert and Narendran, 2005 and R. anupama Lambert and Narendran, 2005, both under R. cyathiformis Fabricius, 1804; R. jacobsoni flavoscutellata Das and Gupta, 1989, and R. bangalorica Lambert and Narendran, 2005, both under R. jacobsoni du Buysson, 1908; R. travancorica Lambert and Narendran, 2005, under R. marginata Lepeletier, 1836; R. sridharani Lambert and Narendran, 2005, under R. rufocollaris Cameron, 1900; Ropalidia rufoplagiata nursei van der Vecht, 1941 under R. rufoplagiata Cameron, 1905; Icaria lugubris Smith, 1858, under R. sumatrae Weber, 1801; and a revised synonymy is Icaria pendula Smith, 1857, under R. variegata Smith, 1852. The new replacement name Ropalidia kasaragodensis Lambert and Narendran is proposed for R. indica Lambert and Narendran, 2005, non van der Vecht, 1941.

Polistes formosanus Sonan, 1927 (Hymenoptera: Vespidae), a Good Species Supported by both Morphological and Molecular Phylogenetic Analyses, and a Key Social Wasp in Understanding the Historical Biogeography of the Nansei Islands

Abstract Polistes formosanus Sonan, 1927 is closely related to P. japonicus de Saussure, 1858, and has been treated variously as a good species or subspecies or synonym of P. japonicus. We designate the lectotype of P. formosanus. Detailed examination of morphological characters of specimens from continental Asia, Taiwan, the Nansei Islands and main islands of Japan showed that P. formosanus is a good species different from P. japonicus. Molecular phylogenetic analyses using mitochondrial genes also supported this conclusion. Polistes formosanus is distributed in northern and central Taiwan and in the Nansei Islands and extends northward to the Amami Islands, while P. japonicus occurs in continental Asia, central Taiwan, Korean Peninsula, Honshu to Kyushu of Japan and the Osumi Islands (Yakushima and Tanega-shima Island) of the Nansei Islands. The speciation and biogeography of P. formosanus are briefly discussed.

Review of the paper wasps of the Parapolybia indica species-group (Hymenoptera: Vespidae, Polistinae) in eastern parts of Asia

Nine species of the Parapolybia indica species-group in eastern parts of Asia are reviewed. Four new species are described: P. flava sp. nov. (Vietnam), P. crocea sp. nov. (Japan), P. nana sp. nov. (Vietnam), and P. albida sp. nov. (Vietnam). Parapolybia indica (de Saussure, 1854), P. bioculata van der Vecht, 1966 and P. tinctipennis (Cameron, 1900) are redescribed. The status is reinstanted for P. fulvinerva (Cameron, 1900), stat. resurr. and P. tinctipennis (Cameron, 1900), stat. resurr. and new status is proposed for P. bioculata van der Vecht, 1966, stat. nov. Parapolybia tinctipennis (Cameron, 1900) is newly recorded from China, Vietnam and Laos. The key to species is given. The nests of P. indica, P. bioculata, P. tinctipennis, P. flava and P. crocea are remarked.

Species of the Polistes ( Polistella ) (Hymenoptera: Vespidae: Polistinae) from Vietnam, with description of a new species and a pictorial key

Twenty seven species of the subgenus Polistella Ashmead, 1904 are recorded from Vietnam. Polistes chuyangsin Nguyen Nguyen sp. nov. and its nest are described and figured. A pictorial key to Vietnamese species of the subgenus is provided.

Figures 1–6 In Species Of The Polistes (Polistella) (Hymenoptera: Vespidae: Polistinae) From Vietnam, With Description Of A New Species And A Pictorial Key

FIGURES 1–6. Polistes chuyangsin sp. nov. 1–4, ♀. Head, frontal view. 2. Head, lateral view.3. Antenna.4. Abdoment.5–6 ♂. 5. Head, frontal view. 6. Head, lateral view. Scale bar:1mm.