Taxon classification Animalia Hymenoptera Formicidae

Pheidole planifrons Santschi, 1920 Figure 20

Material examined.

CHINA, Yunnan, Xishuangbanna: XTBG (21.919°N, 101.274°E), Secondary forest, 05.vi.2013, 2 workers, 552m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; XTBG (21.924°N, 101.268°E), Rubber plantation, 05.vi.2013, 3 workers, 571m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; XTBG (21.911°N, 101.283°E), Limestone forest, 06.vi.2013, 2 workers, 675m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; XTBG (21.912°N, 101.282°E), Limestone forest, 06.vi.2013, 4 workers, 640m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; XTBG (21.911°N, 101.281°E), Limestone forest, 06.vi.2013, 2 workers, 650m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; XTBG (21.916°N, 101.274°E), Limestone forest, 08.vi.2013, 2 workers, 615m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Menglun town (21.932°N, 101.271°E), Rubber plantation, 09.vi.2013, 1 worker, 640m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Man Sai village (21.858°N, 101.277°E), Rubber plantation, 12.vi.2013, 4 workers, 705m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Man Sai village (21.857°N, 101.277°E), Rubber plantation, 12.vi.2013, 1 worker, 710m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Man Sai village (21.907°N, 101.273°E), Rubber plantation, 12.vi.2013, 2 workers, 635m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Man Sai village (21.858°N, 101.277°E), Secondary forest, 12.vi.2013, 2 workers, 685m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Man Sai village (21.858°N, 101.276°E), Secondary forest, 12.vi.2013, 9 workers, 690m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Man Sai village (21.860°N, 101.273°E), Secondary forest, 12.vi.2013, 1 work er, 680m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Kilometer 55 station (21.966°N, 101.203°E), Rain forest, 13.vi.2013, 3 workers, 840m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Banna University construction site (21.889°N, 101.267°E), Rubber Plantation, 14.vi.2013, 33 workers, 630m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu; Banna University construction site (21.922°N, 101.268°E), Rubber Plantation, 14.vi.2013, 2 workers, 620m, Winkler sifting, B. Guénard, B. Blanchard and C. Liu.

Distribution.

Yunnan (new record), Vietnam, Thailand and Java (Figure 20C). This new record represents the northern-most occurrence in the known distribution of Pheidole planifrons .

Taxonomic note.

Pheidole planifrons can be identified with the identification key to Northern Vietnamese Pheidole provided by Eguchi (2008).

Natural history.

Pheidole planifrons has been collected from leaf litter in rain forest, limestone forest and rubber plantations. It has also been reported inhabiting in the soil of forest edge and woody habitats (Eguchi 2008).