Research Article |
Corresponding author: Lien Thi Phuong Nguyen ( phuonglientit@gmail.com ) Academic editor: Michael Ohl
© 2019 Lien Thi Phuong Nguyen, James Carpenter.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Nguyen LTP, Carpenter J (2019) Taxonomic notes on the paper wasps of the subgenus Polistes (Gyrostoma) (Hymenoptera, Vespidae, Polistinae) occurring in Vietnam, with description of a new species. Journal of Hymenoptera Research 74: 51-64. https://doi.org/10.3897/jhr.74.47795
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Taxonomy of the paper wasps of the subgenus Gyrostoma of the polistine genus Polistes from Vietnam is treated, with a key to all the five species occurring in Vietnam, including one described herein as new to science under the name Polistes longus sp. nov. Nests of P. gigas and P. longus sp. nov. are also described.
Polistes, Gyrostoma, distribution record, key, nest description, new species
The paper wasp genus Polistes, with more than 200 species worldwide, is divided into four subgenera (
In this paper, based on specimens deposited in the Institute of Ecology and Biological Resources (IEBR), a taxonomic study on the subgenus Gyrostoma from Vietnam is presented: a species is described as new to science together with its nest, and the nest of another species is also described.
All material including the holotype of the new species is deposited in the Institute of Ecology and Biological Resources (IEBR), Hanoi, Vietnam. The adult morphological and color characters were observed using pinned and dried specimens under a stereoscopic microscope. Measurements of body parts were made with an ocular micrometer attached to the microscope. “Body length” indicates the length of head, mesosoma and the first two metasomal segments combined. The parts measured for the morphometric characters referred to in the descriptions are defined as in
In the descriptions of adult morphology, the following abbreviations are used: The abbreviations F, S and T refer to numbered flagellomeres, metasomal sterna and metasomal terga, respectively; POD, distance between the inner margins of the posterior ocelli; OOD, distance between the outer margin of the posterior ocellus and the inner margin of the eye at vertex; Od, transverse diameter of a posterior ocellus; IED-c and ISD-c refer to collectors of the Insect Ecology Department and Insect Systematic Department, IEBR.
Cyclostoma gigas Kirby, 1826, 1, 3: 36.
Polistes gigas: Sonan, 1943, 33: 469.
This is the biggest species among polistine wasps, with female body length being about 25–30 mm, and male body length even bigger, about 32–35 mm. Its distribution is restricted to one area in the northeastern part of India (Sikkim), southern China including Hong Kong, and Taiwan (
Vietnam. Cao Bang [2 ♀, Nguyen Binh, Thanh Cong, 22°34'14.2"N, 105°52'51.7"E, 9 Aug. 2012, J Kojima, H Nugroho & IED-c leg.; 2 ♀, Nguyen Binh, Thanh Cong, 23°32'29"N, 105°52'52.7"E, 8 Aug. 2012, J Kojima, H Nugroho & IED-c leg.; 1 ♀, Nguyen Binh, Thanh Cong, 23°32'37"N, 105°52'10.4"E, 7 Aug. 2012, J Kojima, H Nugroho & IED-c leg.; 6 ♀, Nguyen Binh, Tam Kim, Na Va, 22°36'17"N, 106°01'47"E, alt. 320m, 18 Oct. 2015, LPT Nguyen, DD Nguyen, MP Nguyen leg.; 1 ♀, Nguyen Binh, Thanh Cong, Phia Oac, 11 Aug. 2012, ISD-c leg.; 2 ♀, Trung Khanh, Dam Thuy, Nguom Ngao cave, 28 Apr. 2015, LPT Nguyen leg.]; 1 ♀, Bac Kan. Na Ri, Lan San, Kim Hy NR, 3 Jun. 2014, 22°14'N, 106°5'E, SV Tran leg.; 1 ♀, Thai Nguyen, Dai Tu, Phuc Xuyen, 23 Apr. 2012, LD Khuat leg.; 1 ♀, Thai Nguyen, Dai Tu, 29 Sep. 2006, LD Khuat leg.; 3 ♀, Phu Tho, Xuan Son NP, alt. 500–600 m, 12–13 Jun. 2004, LTP Nguyen leg.; 1 ♀, Thai Nguyen, Xuan Dai, Tan Son, 20 May 2011, HP Pham leg.; Bac Giang [5 ♀, Son Dong, An Lac, Keo Vang, 21°18'46"N, 106°56'E, 4 Jun. 2014, LTP Nguyen, DD Nguyen, DD Tran leg.; 1 ♀, Son Dong, Tuan Dao, Khe Dan, Tay Yen Tu NR, 4 Jul. 2010, DD Tran leg.; 1 ♀, Son Dong, Khe Vang, 16 May 2013, DD Nguyen leg.; 1 ♀, Son Dong, An Lac, Dong Bay, 12 Aug. 2012, J Kojima, H Nugroho & IED-c leg.]; 1 ♀, Quang Ninh, Yen Tu mountain, 4 Mar. 2002, LPT Nguyen leg.; Hoa Binh [1 ♀, Yen Thuy, Da Phuc, 27 Apr. 2012, HT Dang leg.; 1 ♀, Mai Chau, Chieng Chau, Lac village, alt. 600m, 10 Jun. 2008, LPT Nguyen & PH Pham leg.; Ha Noi [1 ♀, Ba Vi, Van Hoa, 03 Jun. 2001, LPT Nguyen leg.; 3 ♀, Ba Vi, Yen Bai, Suoi Mo, alt. 100 m, 01 Jun. 2001, LPT Nguyen leg.]; Hai Phong [4 ♀, Cat Ba NP, 20°47'58"N, 106°59'93"E, Nest#-CB-2013-Po-01, 26 Jul. 2013, LTP Nguyen leg.; 1♀, Cat Ba NP, 10 Jun. 2003, DL Khuat leg.]; Vinh Phuc [1 ♀, Me Linh, Ngoc Thanh, 02 Aug. 2000, LX Truong leg.; 6 ♀, Tam Dao NP, 2005, 21°26'N, 105°37'E, alt. 400 m, 20 Aug., J. Kojima leg.; 1 ♀, Me Linh, Ngoc Thanh, 13 Jun. 2001, LX Truong leg.; 8 ♀, Tam Dao, alt. 900–1200m, 30 Jul.-3 Aug. 2012, DT Tran leg.; 6 ♀, 21 ♂, Phuc Yen, Me Linh, Nest# 2012-ML-P-01, 11 Nov. 2012, J Kojima, DT Dang & LPT Nguyen leg.]; Thanh Hoa, Thuong Xuan, Van Xuan, Hon Can, Xuan Lien NR [1 ♀, 23–24 Aug. 2012, LPT Nguyen & TV Hoang leg.; 1 ♀, 19°51'41.2"N, 105°14'6"E, alt. 175 m, 27 Aug. 2012, LPT Nguyen leg.]; 1 ♀, Nghe An, Con Cuong, Khe Bu, 16 Apr. 2006, ISD-c leg., light trap; 1 ♀, Ha Tinh, Huong Son, Son Kim, alt. 400 m, 06 May 2004, LPT Nguyen leg.; 1 ♀, Quang Binh, Quang Ninh, Truong Son, U Bo, alt. 650–800 m, 10 Jun. 2006, LTP Nguyen leg.; 1 ♀, Thua Thien Hue, Phu Loc, Bach Ma NP, 30 May 2001, LD Khuat leg.; 1♀, Quang Nam, Dong Giang, Macoih, 27 May 2006, ISD-c leg.
Gyrostoma species. 1–3 Polistes gigas 1 female head, frontal view 2 male head, frontal view 3 antennal flagellomeres 1–4. 4–6 Polistes olivaceus 4 female head, frontal view 5 male head, frontal view 6 antennal flagellomeres 1–4. 7–9 Polistes rothneyi 7 female head, frontal view 8 male head, frontal view 9 antennal flagellomeres 1–4. 10–12 Polistes tenebricosus 10 female head, frontal view 11 male head, frontal view 12 Antennal flagellomeres 1–4.
India: Sikkim; southern China; Vietnam.
A nest (Nest# 2012-ML-P-01) collected in Me Linh station, Vinh Phuc on 11 November 2012 was examined. The nest (Fig.
Nest structural characters are as follows. Single comb, nearly round in shape with diameter of the comb nearly 10cm and 10cm in height, tough paper-like in texture, bicoloured, almost all dark brown mixed with reddish gray, expanded from the petiole to form fan-shape in ventral view, with dorsal surface slightly concave. One-third of the cell length from the bottom at outside covered with sharp thorns (Fig.
Vespa olivacea DeGeer, 1773, 3: 582.
Polistes olivaceus: de Saussure, 1853: 89.
This species has been recorded from Vietnam (
Vietnam. 1♀, Dien Bien, Dien Bien city market, 25 Aug. 2006, LTP Nguyen, F Saito & J Kojima leg.; Lao Cai [10 ♀, Bao Yen, Thuong Ha, Nest # VN-P-2006-1, 18 Aug. 2006, LTP Nguyen, F Saito & J Kojima leg.; 11 ♀, Nam Cuong, alt. 120 m, 19 Aug. 2006, LTP Nguyen, F Saito & J Kojima leg.]; 2 ♀, Yen Bai, Yen Bai city, 18 Aug. 2006, LTP Nguyen, F Saito & J Kojima leg.; 1 ♀, Son La, To Hieu farm, 7 Sep. 1993, XL Truong leg.; Vinh Phuc [1 ♀, Tam Dao NP, 21°27'N, 105°38'E, alt. 890 m, 4 May 2000, JM Carpenter leg.; Tam Dao, Me Linh, Ngoc Thanh [2 ♀, 20 Jul. 2000, DL Khuat leg.; 1 ♀, 24 May 2000, LTP Nguyen leg.]; 1 ♀, Tam Dao, Tam Dao NP, alt. <50 m, 21 Aug. 2005, LTP Nguyen & J Kojima leg.; Hanoi [2 ♀, Cau Giay, Nghia Do, 29 May 2000, LTP Nguyen leg.; 2 ♂, 23 ♀, Cau Giay, Nghia Do, Nest# VN-P-2005-1, 1 Aug. 2005, LTP Nguyen & J Kojima leg.; 9 ♀, Thong Nhat park, 7 Sep. 2006, J Kojima leg.; 1 ♀, Quoc Oai, 14 Aug. 1998, XL Truong leg.; 1 ♀, Ba Vi, Van Hoa, Yen Bai, 15 Aug. 2006; ISD-c leg.; 1 ♀, Thuong Tin, 11 Jul. 2005, XT Nguyen leg.]; Hoa Binh, Yen Thuy [1 ♀, Lac Thinh, 30 Apr. 2002, DL Khuat leg.; 4 ♂, Da Phuc, 30 Aug. 2000, LTP Nguyen; 5 ♀, Da Phuc, 5 Jul. 2000, XL Truong leg.; 1 ♀, Bao Hieu, 9 Aug. 2000, LTP Nguyen leg.; Lac Thinh, 6 May 2002, VT Hoang leg.]; Nghe An [2 ♀, Khe Bo, 19°03'N, 104°43'E, alt. 120 m, 25–28 Apr. 1998, JM Carpenter leg.; 2 ♀, Con Cuong, Mon Son, Pha Lay, 11 Mar. 2002; 5 ♀, Con Cuong, Mon Son, Bung village, 7–9 Sep. 2005; 2 ♀, Pu Mat NP office, 17 Nov. 2005; 1 ♀, Con Cuong, Khe Bu, 16 Jul. 2006; 1 ♀, Co Phat, alt. 200 m, 22 Jul. 2006; 2 ♀, Chau Khe, Khe Choang, 14 Jul. 2005, leg. ISD-c; 4 ♀, Pu Mat NP office, 21 Jul. 2004], LTP Nguyen leg.; 1♀, Con Cuong, Mon Son, 22–24 Jul. 2004, LTP Nguyen leg.; 4 ♀, Quang Binh, Bo Trach, 17 Aug. 2005, LTP Nguyen & J Kojima leg.; 9 ♀, Thua Thien Hue, Hue City, 16 Aug. 2005, LTP Nguyen & J Kojima leg.; 1 ♀, Kien Giang, U Minh Thuong NP, 30 Sep. 2003, LTP Nguyen leg.
Madagascar; Réunion; Mauritius (including Chagos Archipelago); Tanzania: Zanzibar; Seychelles (including Amirantes); Egypt; Oman; Iran; Afghanistan; India: Gujarat, Rajasthan, Jammu and Kashmir, Jharkhand, Assam, Himachal Pradesh, Arunachal Pradesh, Karnataka, Andhra Pradesh, Madhya Pradesh, Chhattisgarh, Odisha, Manipur, Meghalaya, Nagaland, Sikkim, Tripura, Uttarakhand, Uttar Pradesh, West Bengal; Sri Lanka; Nepal; Myanmar; China; ? Japan: Okinawa; Vietnam; Laos; Cambodia; Thailand; Malaysia; Singapore; ? Indonesia: Kalimantan; Marianas; New Caledonia; Fiji; Tonga; Samoa; French Polynesia: Tahiti, Tuamotu Archipelago, Marquesas; adventive in Chile: Easter Is.; U.S.A.: Hawaii; Australia: Queensland; New Zealand.
Polistes rothneyi Cameron, 1900, (7) 6: 410.
In Vietnam, van der
In previous study in Vietnam, this species has only one color form and it agrees with the color form that van der
Vietnam. Cao Bang [2 ♀, Nguyen Binh, Phia Oac NR, alt. 1590 m, 23°02'49"N, 104°59'35.6"E, 5 Nov. 2016, NN Tran, MP Nguyen, TV Luong leg.; 1 ♀, Nguyen Binh, Thanh Cong, Phia Oac, 11 Aug. 2012, leg. ISD-c leg.; 3 ♀, Nguyen Binh, Thanh Cong, 22°32'37"N, 105°52'10.4"E, 7 Aug. 2012, J Kojima, H Nugroho & IED-c leg.; 1♀, Bang Giang river, 21 Aug. 2001, XL Truong leg.]; Lang Son [1 ♀, Bac Son, 1 Jul. 2003, XL Truong leg.; 1 ♀, Huu Lung, Cai Kinh, alt. 85m, 16 Jul. 2016, 20°31'37.6"N, 105°00'24.2"E, LPT Nguyen, DD Nguyen, NT Tran leg.]; Bac Giang [1 ♀, Son Dong, Khe Ro, 18 May 2013, DD Nguyen leg.; 1 ♀, Son Dong, Thanh Son, alt. 300m, 1 Jul. 2010, HP Pham leg.]; 3 ♀, Ha Noi, Ba Vi, 16 Jun. 2016, TV Tran leg.; 4 ♀, Phu Tho, Xuan Son NP, alt. 400 m, 12–13 Jun. 2004, LTP Nguyen leg.; Vinh Phuc [3 ♀, Tam Dao NP, alt. 800 m, 01 Jul. 2003, LTP Nguyen leg.; 6 ♂, 7 ♀, Tam Dao NP, alt. 900 m, 21 Aug. 2005, LTP Nguyen & J Kojima leg.; 26 ♂, Tam Dao NP, alt. 800 m, Nest# VN-P-2006-19, 1 Sep. 2006, F Saito & J Kojima leg.; Hoa Binh, Mai Chau, Pa Co [1 ♀, alt. 1100 m, 28 Apr. 2002; ISD-c leg.; 1 ♀, alt. 900 m, 1 Aug. 2004, XL Truong leg.]; 1 ♀, Hoa Binh, Yen Thuy, 1 May 2002, VT Hoang leg.; 1 ♀, Ninh Binh, Cuc Phuong NP, 8 May 2002, VT Hoang leg.; 1 ♀, Nghe An, Quy Hop, Chau Thanh, 16 Jul. 2004, XH Le leg.; 4 ♀, Gia Lai, Kon Chu Rang NR, Son Lang, Kbang, 14°28'27"N, 108°32'24.3"E, alt. 830 m, 13 Apr. 2015, LTP Nguyen leg.
Pakistan; Nepal; India: Jammu and Kashmir, Himachal Pradesh, Uttar Pradesh; Uttarakhand, West Bengal, Sikkim, Bihar, Assam, Delhi, Karnataka, Kerala, Tamil Nadu, Manipur, Meghalaya; Laos; Malaysia; Myanmar; Vietnam; Indonesia: Sumatra, Java; China; Japan; Korea.
Polistes tenebricosa Lepeletier, 1836, 1: 529.
This species has been recorded from the northern part of Vietnam (
Vietnam. 1 ♀, Bac kan, Ba Be NP, 17 Jul. 2004, DH Nguyen leg.; Bac Giang [2 ♀, Son Dong, Khe Vang, 16 May 2013, DD Nguyen leg.; 1 ♀, Son Dong, Thanh Son, alt. 300 m, 1 Jul. 2010, HP Pham leg.]; 5 ♀, Phu Tho, Xuan Son NP, alt. 400–600 m, 12–16 Jun. 2004, LTP Nguyen leg.; Vinh Phuc [1 ♀, Tam Dao NP, alt. 1000 m, 3 Jul. 2003, LTP Nguyen leg.; 1 ♀, Tam Dao NP, alt. 900 m, 19 Aug. 2005, LTP Nguyen & J Kojima leg.; 7 ♀, Tam Dao NP, Nest # VN-P-2006-18, alt. 800 m, 31 Aug. 2006, F Saito & J Kojima leg.]; Hoa Binh [1 ♀, Yen Thuy, Lac Thinh, alt. 130 m, 30 Apr. 2002, DL Khuat leg.; 3 ♀, Kim Boi, Thuong Tien, 5 Aug. 2012, LD Khuat leg.]; 2 ♀, Thanh Hoa, Thuong Xuan, Van Xuan, Hon Can, Xuan Lien NP, 23 Aug. 2012, LTP Nguyen leg.; Nghe An [1 ♀, Con Cuong, Mon Son, 22–24 Jul. 2004, LTP Nguyen leg.; 1 ♀, Quy Hop, Chau Cuong, 14–19 Jul. 2004, XH Le leg.; 1♀, Ha Tinh, Huong Son, 18°21N 106°15E, alt. 450 m, 14–21 Apr. 1998, Malaise Trap, J M Carpenter, DL Khuat, Grimaldi, Herman, Silva leg.; 1 f#, Quang Nam, Dong Giang, Prao district, alt. 500–600 m, 28 May 2006, ISD-c leg.; 1 ♀, Gia Lai, Mang Yang, A Yun, Kon Ka Kinh NP, alt. 881 m, 04 Jun. 2011, ISD-c leg.; 2 ♀, Ninh Thuan, Ngoan Muc pass, 4 Aug. 2005, LTP Nguyen & J Kojima leg..
India: Jammu and Kashmir, Uttarakhand, Sikkim, West Bengal, Arunachal Pradesh, Assam, Meghalaya, Mizoram, Nagaland, Tripura; Nepal; China; Vietnam; Myanmar; Indonesia: Sumatra, Java, Bali, Lombok, Flores, Sumba, Kalimantan; Sulawesi; Philippines: Negros, Sibuyan.
Holotype, ♀, Vietnam: Ia Pal, Chu Se, Gia Lai, 13°39'46.2"N, 108°08'04.2"E, alt. 370 m, Nest#2012-TN-P-04, 25 Jul. 2012, LTP Nguyen leg., deposited in IEBR. Paratypes: 30 ♀, same data as holotye.
3 ♀, Binh Thuan, Ham Thuan Nam, 10°51'07.7"N, 109°53'59.8"E, 11 Aug. 2005, LTP Nguyen & J Kojima leg.; 2 ♀Kon Tum, Kon Tum City, 20 Jul. 2012, LPT Nguyen leg.; Gia Lai [10 ♀, Ia Pal, Chu Se, 13°39'46.2"N, 108°08'04.2"E, alt. 370 m, Nest#2012-TN-P-04, 3 ♀, Ia Pal, Chu Se, 21–25 Jul. 2012, ISD-c leg.; 3 ♀, Chu Se, 14 Apr. 2013, LTP Nguyen leg.; 1 ♀, Ayun Pa, Ia Rto, 13°21'49.6"N, 108°30'06.4"E, alt. 200 m, 1 May 2016, LPT Nguyen, DD Nguyen, NT Tran leg.; 8 ♀, Chu Se, Ia Pal, 13°39'46.2"N, 108°08'04.2"E, alt. 370 m, 21 Jul. 2012, LTP Nguyen leg.]; 1 ♀, Dak Lak, Nam N Jang, 24 Jul. 2012, ISD-c leg.
Female. Body length 17.7–19.5 mm (holotype 19 mm); fore wing length 19.5–21.5 mm (holotype 21 mm).
Head in frontal view about 1.12 × as wide as high (Fig.
Pronotal carina raised, produced dorsally into lamella in dorsal part, slightly sinuate backward on lateral side, reaching ventral corner of pronotum. Mesoscutum in lateral view weakly convex, about 1.16 × as long as wide between tegulae; anterior margin broadly rounded. Scutellum flattened, slightly depressed in the middle, in lateral view slightly higher at the level of mesoscutum, strongly depressed along anterior margin. Metanotum weakly convex, disc nearly flat but strongly depressed anterior margin. Propodeum short (Fig.
TI short and thick, about 0.9 times as long as its apical width, in lateral view abruptly swollen dorsally just behind basal slit for reception of propodeal suspensory ligament; corner between anterior and dorsal faces bluntly angled (Fig.
Clypeus with scattered large punctures, each bearing sharply pointed golden bristle. Mandible with several small and shallow punctures at base and deep punctures at anterior margin. Frons covered with small and shallow punctures. Vertex and gena with minute punctures, area around ocelli with minute punctures; ventral one third of gena with large and shallow punctures. Pronotum with medium deep punctures. Mesoscutum sparsely with deep punctures; punctures on scutellum and metanotum similar to those on mesoscutum. Mesepisternum with sparse large and deep punctures in posterodorsal part, scattered shallow punctured in anteroventral part; border between posterodorsal and anteroventral parts indistinct. Dorsal metapleuron with some strong striae and shallow large punctures; ventral metapleuron with sparse strong punctures. Propodeum with strong transverse striae. Metasomal segments (Fig.
Male. Unknown.
South Vietnam.
This species comes close to P. rothneyi but it is different from the latter by the female clypeus nearly as wide as high (slightly wider than high in P. rothneyi), dorsal two thirds of the gena without medium punctures (dorsal two thirds of the gena with sparse and medium punctures in P. rothneyi), propodeum with posterior face narrowly and strongly excavated medially (propodeum with posterior face widely and more shallowly excavated medially in P. rothneyi).
The specific name refers to the very long cells of the nest.
A nest (Nest#2012-TN-P-04) (Figs
The nest was attached to a thin branch of a shrub about 0.5 m above the ground. The nest characteristics are as follows: Petiole lost during collecting, but the remaining part showed that it is single, nearly central. Comb rather tough, pliable paper-like in texture, more or less uniformly brown in cell walls, subcircular (about 22 mm × 20 mm) in view from side of cell opening, dorsal surface dome shape. Cells arranged in regular rows and round at open end; cell expanded towards open end, 6.3 mm (range 6.0–6.9 mm; n = 10) wide at bottom and 7.3 mm (range 7.0–7.5 mm; n = 10) wide at open end, 16.3 mm (range 16.1–16.9 mm; n = 10) deep; cell wall about 0.03 mm thick. Cocoon caps very long (range 20−42mm), white.
The characters used are applicable to both sexes unless the sex is specified.
1 | Prestigma longer than the length of the pterostigma measured along ventral part; mesepisternum without dorsal episternal groove; interantennal carina toothed; pronotum with striations; hind trochanter toothed. In male, clypeus as wide as high, separated from eye by a gap on both sides, mandible tridentate. Body color entirely dark brown, clypeus brown | Polistes gigas (Kirby) |
– | Prestigma about equal to or shorter than the length of the pterostigma measured along ventral part; mesepisternum with dorsal episternal groove; interantennal carina blunt; pronotum without striations; hind trochanter smooth | 2 |
2 | Mesepisternum without epicnemial carina. Clypeus dark brown, metasomal terga yellow with black or dark brown bands or entirely dark brown | Polistes tenebricosus Lepeletier |
– | Mesepisternum with epicnemial carina | 3 |
3 | Mesopleuron weakly and sparsely punctate medially. In male, clypeus touching eye, wider than high, SVII with lateral process. Clypeus yellow, metasomal terga yellow with reddish-brown bands | Polistes olivaceus (DeGeer) |
– | Mesopleuron strongly and densely punctate medially | 4 |
4 | Female clypeus nearly as wide as high. Prestigma shorter than the length of the pterostigma; dorsal two thirds of gena without medium punctures; propodeum with posterior face narrowly (about one third the maximum width of propodeum) and strongly excavated medially. Body color dark reddish brown, clypeus yellow | Polistes longus sp. nov. |
– | Female clypeus slightly wider than high. Prestigma about equal to the length of the pterostigma; dorsal two thirds of gena with sparse and medium punctures; propodeum with posterior face widely (about half the maximum width of propodeum) and shallowly excavated medially. Body color yellow with black marks, clypeus yellow | Polistes rothneyi Cameron |
The present study was supported by a grant from the Vietnam Academy of Science and Technology (KHCBSS.01/18-20).