Polistes (Gyrostoma) tenuispunctia Kim, 2001

Tan, Jiang-Li, Achterberg, Kees Van, Duan, Mei-Jiao & Chen, Xue-Xin, 2014, An illustrated key to the species of subgenus Gyrostoma Kirby, 1828 (Hymenoptera, Vespidae, Polistinae) from China, with discovery of Polistes (Gyrostoma) tenuispunctia Kim, 2001, Zootaxa 3785 (3), pp. 377-399: 393-395

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Polistes (Gyrostoma) tenuispunctia Kim, 2001


Polistes (Gyrostoma) tenuispunctia Kim, 2001 

( Figs 24–26View FIGURE 24View FIGURE 25View FIGURE 26. A – B)

Polistes tenuispunctia Kim 2001: 59  (holotype, ♀, Aengmobung, Gyeonggi-do, Korea, deposited in Korean Entomological Institute, Korean University, Seoul).

Material examined. 2 ♂, Yuanba, Liping, Nanzheng, Hangzhong, Shaanxi, 12.x. 2011, JL Tan ( NWUM); 1 ♂, 2 ♀, Guanghuojie, Ningshan, Shaanxi, 27.vi. 2013, JL Tan ( NWUM); 1 ♂, 8 ♀, Watershed Natural Reserve, Yueba Foping, Shaanxi, 27.vii. 2013, 33˚ 32 ' 57.31˝N, 107 ˚ 49 '12.91˝E, 1083 m, JL Tan, ( ZJUH; including a nest with two females); 6 ♂, 2 ♀, Sangyuan Natural Reserve, Liuba, Shaanxi, 33.43˚N, 107.12˚ E, 1212 m, 17.viii. 2013, BB Tu ( ZJUH).

Diagnosis. The male of this species can be easily distinguished from all its congeners by the key ( Fig. 13, 24View FIGURE 24). The female is very similar to the sympatric species Polistes rothneyi  f. grahami van der Vecht, but differs from the latter by the characteristics listed in Table 1. Without a male this species is very hard to separate from the latter species except for their colour pattern. The different nesting site is of additional importance. The most important differentiating character mentioned by Kim (2001) (body very weakly and superficially punctate in both sexes) seems rather variable and does not work very well for Chinese specimens.

Biology. Several individuals are found frequently flying in and out the high eaves suggesting that the nest was concealed in a secret place such as inside the hollow wooden eaves or wall. The collected nest we took from a hollow doorframe; the key hole acted as their entrance; the single comb nest had about 50 cells, 10 mm in diameter, suspended inside with one central narrow pedicel; pedicel about 3.2 mm wide (minimum diameter) and 5 mm long, cell-marginal and with buttressed sheet; cells were hexagonal and regularly arranged with the average diameter (between opposite sides) 6.0–7.5 mm, variable in length and increased as the stage advanced. Cocoon capping is white and protruding about 8.5 mm beyond the cell mouth ( Figures 26 A –BView FIGURE 26. A – B).

Distribution. Korea, China (Shaanxi).

TABLE 1. Comparison of the females of Polistes tenuispunctia Kim and P. rothneyi grahami van der Vecht.

  Mesopleuron (as metapleuron) largely blackish, except for a yellow anterior patch (Fig. 25C)  
    Upper two thirds yellow or yellow with a central black patch, lower third black or yellow with a small black irregular spot (Fig. 26E)
  Minimum diameter of pedicel about 3 mm (Fig. 26A)  














Polistes (Gyrostoma) tenuispunctia Kim, 2001

Tan, Jiang-Li, Achterberg, Kees Van, Duan, Mei-Jiao & Chen, Xue-Xin 2014

Polistes tenuispunctia

Kim 2001: 59