PRISTOMYRMEX

(Subfamily Myrmicinae)

Taxonomy

The genus Pristomyrmex was established by Mayr (1866), and is assigned to the tribe Myrmecinini together with Acanthomyrmex, Myrmecina and Perissomyrmex (Bolton 2003). The genus was recently revised by Wang (2003).

Images


Pristomyrmex sp. eg-x, worker, body in lateral view.


Pristomyrmex sp. eg-x, worker, head in full-face view.

Distribution

Five species have been known from Vietnam.

profundus Wang [= sp. eg-4] Phu Quoc NP (Kien Giang)
punctatus (F. Smith)
[= sp. eg-1]
Ba Be NP (Bac Can); Pu Mat NP (Nghe An); Tam Dao NP (Vinh Phuc)
rigidus Wang [= sp. eg-2] Ba Vi NP (Ha Noi); Tay Yen Tu NP (Bac Giang); Van Ban (Lao Cai)
sulcatus Emery [= sp. eg-5] Ba Vi NP (Ha Noi); Cuc Phuong NP (Ninh Binh); Phu Quoc NP (Kien Giang); Pu Mat NP (Nghe An); Tay Yen Tu NP (Bac Giang); Van Ban (Lao Cai)
sp. eg-3 [cf. occultus Wang] Tam Dao NP (Vinh Phuc)

Bionomics

Thelytokous Pristomyrmex punctatus is nomadic, but the other species constitute rather stable nests in rotting twig and wood fragments and under stones. Colony size of Vietnamese species except P. punctatus is relatively small; colonies consisting of less than 100 workers may produce reproductives.

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