(Subfamily Myrmicinae)


The genus Pheidologeton was established by Mayr (1862), and is assigned into the Carebara genus group of the tribe Solenopsidini (Bolton 2003). The genus was preliminarily reviewed by Yamane (2000).


Pheidologeton sp. eg-x, major, body in lateral view.

Pheidologeton sp. eg-x, major, head in full-face view.

Pheidologeton sp. eg-x, minor, body in lateral view.

Pheidologeton sp. eg-x, minor, head in full-face view.


Five species have been known from Vietnam. The species marked with an asterisk has not yet been examined by us.

diversus (Jerdon) [= sp. eg-3] Nam Cat Tien NP (Dong Nai); Nui Chua NP (Ninh Thuan); Pu Mat NP (Nghe An); Quang Tri (Quang Tri); Tam Dao NP (Vinh Phuc)
trechideros Zhou et Zheng
[= sp. eg-1]
Chua Yen Tu (Quang Ninh); Pu Mat NP (Nghe An); Tay Yen Tu NP (Bac Giang); Van Ban (Lao Cai)
*varius Santschi Type locality: Ho Chi Minh City
vespillo Wheeler [= sp. eg-2] Ba Vi NP (Ha Noi); Cuc Phuong NP (Ninh Binh); Tay Yen Tu NP (Bac Giang)
sp. eg-4 [cf. affinis (Jerdon)] Binh Chau-Phuoc Buu NP (Ba Ria-Vung Tau); Cuc Phuong NP (Ninh Binh); Nam Cat Tien NP (Dong Nai); Pu Mat NP (Nghe An)


Pheidologeton diversus usually inhabits urban areas, openlands, grasslands, forest edges and sparse forests. On the other hands, the other Vietnamese species of Pheidologeton inhabit rather developed forests. Extremely large-sized colonies usually nest in soil under logs and stones. Permanent foraging trails, galleries and tunnels extend outward from their nests. A mass of foragers gather various kinds of food items such as living and dead invertebrates, honeydew of homopterans and plant matters (nectar, fruits, seeds, etc.).

© Katsuyuki EGUCHI & BUI Tuan Viet, 2007. All rights reserved.