Collembola are subklass of entognata which

Collembola are subklass of entognata which is the largest phylum of Arthropods (Hopkin 1997). Collembola have a body size between 0:25 and 8 mm (Suhardjono 1992), some may reach 10 mm (Greenslade 1996). Collembola called spring tails (springtails) because it has a tool called furkula skip or Furka on the fourth abdominal segment ventral part. Collembola found in the world around 7500 species from 581 genera are known. 

Collembola in Indonesia there are 124 genera, CMCPoker.com AGEN JUDI POKER ONLINE, AGEN JUDI DOMINO ONLINE INDONESIA TERPERCAYA  225 species, plus 52 species not yet be described (Greenslade et al. 2000). Collembola are very large population, could reach 100,000 m3 per ground or millions per hectare (Greenslade et al. 2000; Triplehorn & Johnson 2005). The role of Collembola in the ecosystem can not be ignored given the very large number. Collembola role in the food chain as a decomposer of organic matter or detritivor (Greenslade 1996; Hopkin 1997; Triplehorn & Johnson 2005). Additionally Collembola widely used as a biological indicator (bio-indicators) or monitoring (monitoring) of an ecosystem (Hopkin 1997; Saosa et al., 2004; Migliorini 2005). 

Collembola commonly known as the organisms that live in the soil and has an important role as a decomposer soil organic matter. In agricultural ecosystems, Collembola found in abundant quantities. Collembola in agricultural ecosystems is an alternative feed for the various types of predators (Greenslade et al., 2000). Collembola contribute in maintaining the survival of the predators become the natural enemies of various types of pests. This role is very important especially during the low population density of insect pests eg after harvest or during the fallow period (Ponge et al., 2003; Channel, 2004).