Polistes yamanakai Sonan 1937

Kojima, Jun-Ichi, Saito, Fuki & Nguyen, Lien Thi Phuong, 2011, On the species-group taxa of Taiwanese social wasps (Hymenoptera: Vespidae) described and / or treated by J. Sonan, Zootaxa 2920, pp. 42-64 : 60

Polistes yamanakai Sonan 1937 (= Polistes nipponensis Pérez 1905 )

Compared with Polistes mandarinus de Saussure 1853 from China, Sonan (1937) described Polistes yamanakai based on the holotype Ƥ from Tokyo, and a paratype 3 (from Atami) and 7 paratype Ƥ (from Tokyo, Atami, Ise, Yamanashi, Oita [Obira], and Nagasaki). All of these types are in TARI.

Type material. The HOLOTYPE, of which the head is detached and glued on a card, is lacking both antennae leaving only the scapes intact; it is labelled “Tokyo / 2-VII-1931 / M. Nakamura”, “ Polistes / mandarinus Ƥ / Sauss / det. M. Yamanaka”, “ Polistes / yamanakai / Sonan”, the circular type label, and “150”. The PARATYPE 3 has a label of collection data “10 [unreadable] 908 / Atami”). Each of six of the seven paratype females have respectively a collection data label as “VIII Tokyo / T. Shiraki”, “ISE / 1928 / J. YAMANOUCHI”, “Nishigahara / TOKYO / 24 V 1932 / Y. Nakamura”, “Yamanashi / VII 1929 / C. Masuda”, “Obira / Kyushu / 5-VIII-1932 / T. Shiraki”, and “Nagasaki / 31 V 1913 / Y. Horikawa”. One Ƥ with Sonan's identification label and paratype label and “150” could correspond to the paratype Ƥ mentioned by Sonan as “Ƥ, Atami, Aug. 10 1908, T. Shiraki”.

All of these types belong to Polistes nipponensis Pérez, 1905 and the synonymy of Polistes yamanakai Sonan, 1937 under Polistes nipponensis Pérez, 1905 has been confirmed.