Review of the paper wasps of the Parapolybia indica species-group (Hymenoptera: Vespidae, Polistinae) in eastern parts of Asia Author Saito-Morooka, Fuki Author Nguyen, Lien T. P. Author Kojima, Jun-Ichi text Zootaxa 2015 3947 2 215 235 journal article 10.11646/zootaxa.3947.2.5 bf35358c-a673-4542-9dd0-1ea1e70b4fc9 1175-5326 232726 36A90396-5654-45AD-90B0-4653BB98851B Parapolybia nana Saito-Morooka, Nguyen & Kojima , sp. nov. ( Figs 65–69 , 81, 82 ) Parapolybia indica indica (?): van der Vecht 1966 : 29 , part. Diagnosis. This species is similar in the external morphology to P. i n di c a and P. c ro c ea sp. nov. , but can be easily distinguished from the latters by the female vertex behind the posterior ocelli sloping down to the occipital carina after a narrower flat area. Type material. HOLOTYPE : ♀, VIETNAM : Mai Chau, Pa Co, Hoa Binh Prov., 20°44.5'N , 104°53.5'E , ca. 1450 m , 27.viii.2006 , L.T.P. Nguyen, F. Saito & J. Kojima, nest# VN-Pp- 2006-16 ” [ IUNH , long-term loan from IEBR ]. PARATYPES : VIETNAM : Hoa Binh: 7 ♀ with same data as holotype [ IEBR , IUNH ]. Description. FEMALE. Body length about 14.0 mm; fore wing length 12.5–14.0 mm. Head in frontal view 1.1 × as wide as high ( Fig. 65 ). Gena barely swollen laterally, in frontal view of head invisible ( Fig. 65 ), in lateral view 0.7 × as wide as eye ( Fig. 66 ). Vertex behind posterior ocelli sloping down to occipital carina after narrow flat area ( Fig. 82 ). Ocelli close to each other ( Fig. 67 ); distance between anterior and posterior ocelli shorter than Od; POD less than their Od; anterior ocellus diameter 0.25 mm , Od 0.20 mm ; OOD 2.0 × as large as Od. Propodeum with fine shallow transverse striae in anterior one third, striation stronger and deeper posteriorly. T1 thin and long (about 3.8 mm long, Figs 68–69 ), 3.5 × longer than the maximum height, 3.0 × as long as its own maximum width. Color. Similar to P. crocea , but ambiguous paired brown spots on clypeus and metasoma distinctly darker ( Fig. 81 ) as follows: segments 2–6 brown to dark brown, with paler colored lateral spots on T2. MALE. Unknown. Etymology. The specific name originates from a Latin nanus with reference to the appearance. Distribution. Vietnam (North Vietnam ).