Polistes (Polistella) delhiensis Das & Gupta, 1989

Nguyen, Lien Thi Phuong & Kojima, Jun-ichi, 2014, Distribution and nests of paper wasps of Polistes (Polistella) in northeastern Vietnam, with description of a new species (Hymenoptera, Vespidae, Polistinae), ZooKeys 368, pp. 45-63 : 48

Polistes (Polistella) delhiensis Das & Gupta, 1989

Polistes delhiensis Das & Gupta, 1989: 63, female, Delhi [India], [holotype in Zoological Survey of India, Calcutta].

Material examined.

Northeastern provinces: Ha Giang: 1 female, Cao Bo, Vi Xuyen, 22°44'N, 104°54'E, alt. ca 532 m, 21−24.IV.2000, L.T.P. Nguyen; Bac Kan: Kim Hy NP, Na Ri, 22°14'N, 106°05'E, alt. ca 600−700 m, 4.VIII.2012, L.T.P. Nguyen et al. [1 female, 3 females of Nest# VN−NE2012−P−04]; 2 females, Kim Hy NP, Vu Muon, Bach Thong, alt. ca 550 m, 22°12.5'N, 105°58'E, 5.VIII.2012, L.T.P. Nguyen et al. Other provinces: Phu Tho: 2 females, Xuan Son NP, 21°10'N, 104°58'E, alt. ca 400 m, 11−12.VI.2004, L.T.P. Nguyen; Hoa Binh: Pa Co, Mai Chau, 20°44'N, 104°55'E [1 female, alt. ca 1000 m, 27.VI.2001; 2 females, alt. ca 1000 m, 22−23.IV.2002, T.V. Hoang; 1 female, alt. ca 1350 m, 28.VIII.2006, L.T.P. Nguyen, F. Saito & J. Kojima]; Vinh Phuc: 1 female, Tam Dao NP, 21°32'N, 105°37'E, alt. ca 800 m, 2.VII.2003, L.T.P. Nguyen.

Remarks on distribution.

This species could be placed in the " Stenopolistes " group and has been recorded from Delhi in India and North Vietnam [Son La ( Nguyen and Pham 2011), Ha Giang, Bac Kan, Phu Tho, Hoa Binh, Vinh Phuc (present study)]. The other two species of the " Stenopolistes " group occurring in Vietnam, Polistes nigritarsis Cameron and Polistes khasianus Cameron, similarly have such the disjunct distribution records, which are probably due to lack of intensive field works in the areas in the southern slope and western part of the eastern slope of the Himalaya.