7. Polistes semiflavus Holmgren, Eugenies Resa, Ins., 439, 1868. Fullaway, Haw. Ent. Soc., Proc. 2: 283, 1913.

Ritidian Pt., on Hernandia blossoms, April 15, Bryan ; Agana, May 9, Usinger; Yona, May 12, Swezey; Piti, June 22, Aug. 10, Sept. 26, Swezey; Orote Pt., Sept. 1, Swezey; Tumon, Nov. 13, Swezey .

This species is less common than P. macaiinsis and it is smaller and has smaller colonies. It was also collected by Fullaway in 1911.