Mearnsiana bullosa, occasionally referred to by the common name Manobos stick-insect,[1][2]is a species of stick insect in the family Heteropterygidae.

meso- and metathorax are colored orange-brown above and below and have two pairs of slightly darker humps on the upper side.

[2] The species is nocturnal like the other members of the family, but adult specimens do not hide during the day, but hang freely in the food plant.

Plants from the genus Leptospermum and Casuarina on which the animals were found belong to the natural food spectrum.

It was found at the Mount Apo in Mindanao and is deposited as holotype in the National Museum of Natural History in Washington, D.C.

The name Mearnsiana is dedicated to the American ornithologist and natural scientist Edgar Alexander Mearns, who found the holotype at the Mount Apo.

The specific epithet bullosa means "blistered" and probably refers to the vesicular tubercles coated body surface, especially of the nymphs.

[1][7] In 2005 Ireneo L. Lit, Jr. and Orlando L. Eusebio described a species called Trachyaretaon manobo, which was also found at the Mt.

Both Trachyaretaon manobo and Hennobrimus hennemanni were in 2016 by Hennemann et al synonymized with Mearnsiana bullosa.

From the eggs he had sent to Europe, the Swiss phasmid breeder Bruno Kneubühler established the first breeding stock of the species.

A second stock goes back to animals also collected in 2008 by Joachim Bresseel, Mark Bushell and Ellen Caluwe.