Tisamenus hystrix

Appearance

With a length of 34 to 37 millimetres in males and 46 to 49 millimetres in length in females, the species is considered to be a rather small and spiny representative of the genus "Tisamenus". As with "Tisamenus draconina" and "Tisamenus lachesis" there are distinct, often sharp, spines on the posterior mesonotum and also in the middle of the metanotum. The triangle on the mesonotum typical of the genus is about as wide as it is long in "Tisamenus hystrix", while it is longer in "Tisamenus lachesis". In both species the anterior corners of the triangle end in single spines, while in "Tisamenus draconina" they end in compound spines. The segments two to five of the abdomen are occupied in the posterior area with central and paired lateral spines.

Distribution

While the specimens examined by Rehn and Rehn are said to have come from Sibulan in the Province of Negros Oriental in the south of Negros, more recent finds are located about 350 kilometres further north on Sibuyan Island. According to the current state of knowledge, the distribution area thus includes larger areas of the central part of the Philippine island archipelago.