Three species of Pylaemenes from Vietnam
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Species P. Coronatus
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Pylaemenes is a genus of stick insects in the family Heteropterygidae and subfamily Dataminae. It combines small to medium-sized, often brightly colored Phasmatodea species. Their representatives are found in large parts of Southeast Asia.
The average size of representatives of this genus in the male sex is between 3.5 to 5.0 cm & between 4.0 to 6.0 cm in the females.
All species are always wingless. The basic color of adult animals is usually a light beige or brown, which can be supplemented by almost white, brown or black markings depending on the species and gender. On the forehead, which becomes narrower towards the top, there are clear elevations that are differently designed depending on the type.
The antennae are considerably longer than the femura of forelegs. One to three teeth can be found on the outer edge of the first antenna segment. The body surface is mostly covered with tubercles.
Depending on the species, especially in males, pairs of spines can be present in certain places on the thorax and abdomen. As with all Dataminae, the females of the genus Pylaemenes have no ovipositor to lay their eggs.
The distribution area of the genus Pylaemenes includes large parts of Southeast Asia. Their representatives can be found in many areas of the Malay Archipelago and here especially on Borneo. There are also species on the Malay Peninsula, in Thailand and in China.
The nocturnal animals only come out of their hiding places in the leafy layer of the ground or on or behind the bark when it is dark. They are very lazy during the day. When they are discovered they play dead by stretching their hind legs back, the frore and middle legs forward and close to the body. The eggs can be more arched on the dorsal side and often have short hairs. The micropylar plate has three arms, with one arm pointing towards the lid, while the other two run more or less circularly around the egg. The eggs are usually laid on the ground, clamped in the bark near the ground or attached to plants such as mosses.