Hiletinae
The Hiletinae are a subfamily of beetles (Carabidae ). Worldwide there are about 20 species in two genera known to occur in the tropics. The animals are very rare and still poorly understood.
Features
The beetles have a large head, which is strongly built in proportion to the pronotum. The antennae are geniculate, her Scapus is the same length as the second to the fourth generation. The scape may be invested in a groove below the compound eyes. The mandibles are large and strongly curved at its end down. Each mandible has eight or nine triangular teeth, which are larger towards the tip. The tarsi of all legs are tapered slender and distally. Adhesive hairs are formed on the first three Protarsomeren and the first two Mesotarsomeren. The surface of the wing covers is designed differently. The membranous wings ( alae ) are well developed. On thoracic primitive structures, such as the extension on the Prosternum, the indentation of the Procoxa and the Mesoventrit, as well as more advanced structures such as the lobed Metepimeron are available.
The larvae of Hiletinae are completely unknown.
Lifestyle and deposits
The genus Hiletus is widespread in tropical Africa, the genus Eucamaragnathus in Africa, including Madagascar, Southeast Asia and South America east of the Andes of Ecuador to the lowlands of eastern Brazil. The animals inhabit evergreen and deciduous and mixed forests with lateritic soils or grassland savannah with sporadic trees.
System
The Hiletinae be divided into the following classes:
- Hiletus
- Eucamaragnathus