Pristomyrmex bicolor Emery

Zettel, H., 2006, On the ants (Hymenoptera: Formicidae) of the Philippine Islands: I. The genus Pristomyrmex Mayr, 1866., Myrmecologische Nachrichten 8, pp. 59-68 : 60

Pristomyrmex bicolor Emery , 1900

Material examined: Luzon: Laguna Pr., Mt. Banahaw, above Kinabuhayan, trail to Crystalino, 24.XI.1995, leg. J. Kodada & R. Rigova, det. Wang M., 1 [worker] (NHMW).

Diagnosis of worker: TL 4.5 - 6.2 mm. Clypeus dorsally with strong median carina, ventrally variably modified, but always without distinct central tooth. Masticatory margin of mandible with diastema. Dorsum of head rugoreticulate, of alitrunk smooth. Pronotal spines very long (PSL1> 0.35, usually> 0.40), much longer than propodeal spines. First gastral tergite without setae.

Previous records from the Philippines: Palawan (Binaluan) [types of P. taurus ] (Stitz 1925); Luzon: Laguna (Mt. Banahaw) (Wang 2003).

General distribution: Malay Peninsula, Java, Borneo, Philippines (Wang 2003).

Notes: The worker from Mt. Banahaw is the single specimen of P. bicolor known from east of the Wallace' and Dickerson's Lines, which delimit the Pleistocenic Sunda Shelf area to the east. It differs from other material examined (including a syntype of P. bicolor ) in a completely smooth pronotum and agrees in that characteristic with the type of P. taurus Stitz , 1925 from Palawan (synonymy and discussion see Wang 2003: p. 425); also see discussion.