Pseudolasius is a genus of ants in the subfamily Formicinae. The genus is known from southern Asia (from India to China) to northern Australia, where it appears to be restricted to tropical areas. These ants are commonly known as twig ants due to their habit of nesting in twigs or hollow stems.
Identification
The mandibles have 4 to 7 teeth, while the maxillary palps have 2 to 5 segments and the labial palps have 2 to 4 segments. The mandibles are small and not easily noticeable. The setae (hairs) on the upper part of the head are randomly distributed, while the scapes, legs, and upper part of the mesosoma (the middle part of the body, including the propodeum) have upright setae. The body is often covered in dense fine hair (pubescence). The eyes are often poorly developed and usually positioned below the middle of the head. The workers exhibit strong polymorphism, with a major caste that has a notched hind margin of the head. The propodeum (the rear part of the mesosoma) has a dorsal face that ranges from low to high-domed, and the overall shape of the mesosoma is compact.
Species
- Pseudolasius amaurops <small>Emery, 1922</small>
- Pseudolasius amblyops <small>Forel, 1901</small>
- Pseudolasius australis <small>Forel, 1915</small>
- Pseudolasius badius <small>Viehmeyer, 1916</small>
- Pseudolasius bidenticlypeus <small>Xu, 1997</small>
- Pseudolasius binghami <small>Emery, 1911</small>
- â Pseudolasius boreus <small>Wheeler, 1915</small>
- Pseudolasius breviceps <small>Emery, 1887</small>
- Pseudolasius butteli <small>Forel, 1913</small>
- Pseudolasius caecus <small>Donisthorpe, 1949</small>
- Pseudolasius carinatus <small>Karavaiev, 1929</small>
- Pseudolasius cibdelus <small>Wu & Wang, 1992</small>
- Pseudolasius circularis <small>Viehmeyer, 1916</small>
- Pseudolasius fallax <small>Emery, 1911</small>
- Pseudolasius familiaris <small>(Smith, 1860)</small>
- Pseudolasius hummeli <small>Stitz, 1934</small>
- Pseudolasius isabellae <small>Forel, 1908</small>
- Pseudolasius jacobsoni <small>Crawley, 1924</small>
- Pseudolasius karawajewi <small>Donisthorpe, 1942</small>
- Pseudolasius lasioides <small>Wheeler, 1927</small>
- Pseudolasius leopoldi <small>Santschi, 1932</small>
- Pseudolasius liliputi <small>Forel, 1913</small>
- Pseudolasius longiscapus <small>Wang, W. & Zhao, 2009</small>
- Pseudolasius ludovici <small>Forel, 1913</small>
- Pseudolasius machhediensis <small>Bharti, Gul & Sharma, 2012</small>
- Pseudolasius martini <small>Forel, 1911</small>
- Pseudolasius mayri <small>Emery, 1911</small>
- Pseudolasius minor <small>Donisthorpe, 1947</small>
- Pseudolasius minutissimus <small>Forel, 1913</small>
- Pseudolasius minutus <small>Emery, 1896</small>
- Pseudolasius overbecki <small>Viehmeyer, 1914</small>
- Pseudolasius pallidus <small>Donisthorpe, 1949</small>
- Pseudolasius pheidolinus <small>Emery, 1887</small>
- Pseudolasius pygmaeus <small>Forel, 1913</small>
- Pseudolasius risii <small>Forel, 1894</small>
- Pseudolasius salvazai <small>Santschi, 1920</small>
- Pseudolasius sauteri <small>Forel, 1913</small>
- Pseudolasius sexdentatus <small>Donisthorpe, 1949</small>
- Pseudolasius silvestrii <small>Wheeler, 1927</small>
- Pseudolasius similus <small>Zhou, 2001</small>
- Pseudolasius streesemanni <small>Viehmeyer, 1914</small>
- Pseudolasius sumatrensis <small>(Mayr, 1883)</small>
- Pseudolasius sunda <small>Karavaiev, 1929</small>
- Pseudolasius tenuicornis <small>Emery, 1897</small>
- Pseudolasius trimorphus <small>Karavaiev, 1929</small>
- Pseudolasius typhlops <small>Wheeler, 1935</small>
- Pseudolasius waigeuensis <small>Donisthorpe, 1943</small>
- Pseudolasius weissi <small>Santschi, 1910</small>
- Pseudolasius zamrood <small>Akbar, Bharti & Wachkoo, 2017</small>
- Pseudolasius zynia <small>Fisher, 2025</small>
References
External links