Orphnaecus sp. “Negros” • 3/4″

Orphnaecus sp. “Negros'” (Negros earth tiger), captive bred, from the island of Negros, Philippines. A medium-size, charcoal-colored terrestrial with a pale carapace. Old World tarantula, recommended for experienced keepers.


The Republic of the Philippines has over 7,500 islands. The larger of these support one or more Orphnaecus species. For example, the largest and most populous island, Luzon, is home to both Orphnaecus sp. “Quezon blue” and Orphnaecus pillitus, the type species for the genus.

Orphnaecus in the Philippines
Orphnaecus in the Philippines. The undescribed species have been named after Quezon Province and the islands of Panay, Negros, and Cebu.

The island Negros is home to Orphnaecus philippinus and the increasingly popular Orphnaecus sp. “Negros.” The map to the left shows the locations of Luzon island, Quezon Province on Luzon, and the islands Panay, Negros, and Cebu.

Climate in the Philippines varies according to location west to east, with distinct dry and wet seasons on the western side, and mixed patterns of increased rainfall on the eastern side. Local rain patterns depend mainly on ocean currents such as El Niño, but also elevation and season. Most of the Orphnaecus species mentioned above, including Negros Island species, come from western climate zones, each with a dry season, as shown on this Philippines climate map.

Orphnaecus sp. “Negros” characteristics

The grey-black leg and abdominal color of O. sp. “Negros” is evident throughout the molt cycle. Spiderlings and young juveniles are uniformly brown. Like other Orphnaecus, O. sp. “Negros” is fast, easily agitated, and defensive. Venom may be medically significant. Thus, although the species is hardy and requires no unusual care, we recommend O. sp. “Negros” for experienced keepers. Females mature at 3-4″, but with subsequent molts have been reported to grow larger.

In the wild, O. sp. “Negros” may be found in rock crevices. In captivity, spiderlings dig a maze of tunnels in loose substrate. Adults also tend to dig. All instars are good eaters and are hardy in captivity.

The photos above shows an adult female, intermolt.

Additional information

Weight 0.01 lbs
Dimensions 1.0 × 0.5 × 0.5 in