Genus Entomobrya Rondani, 1861

Diagnosis of Entomobrya . Body and appendages without scales, dorsal head and body macrochaetae present and abundant, head and trunk also densely covered with small ciliate chaetae, antennae with four segments, 8+8 eyes, mesonotum usually normal, rarely enlarged or projected forward, trochanteral organ present and well developed, Abd. IV enlarged, more than 2 times the length of Abd. III, dentes without spines, mucro with two teeth, basal spine present (adapted from Christiansen 1958, Stach 1963, Mari Mutt 1976, Christiansen & Bellinger 1980, Soto- Adames et al. 2008, Jordana 2012).