Folsomides

Arbea, Javier I. & Jordana, Rafael, 2002, The genus Folsomides Stach of the Ibero­balearic fauna, with description of a new species (Collembola, Isotomidae), Zootaxa 55, pp. 1-8 : 6

Key of Folsomides species in the Ibero­balearic fauna

(A summary of the main diagnostic characteristics of the species is given in Table 2)

1. Mucro absent ( F. nanus ­group) .................................................................................................. 2

­ Mucro present ............................................................................................................................ 3

2. With 5+5 corneola. Microsensilla: 11/111. Dens with 2 dorsal chaetae and 1 ventro­apical chaeta. Retinacle with 3+3 teeth and 1 chaeta on the corpus ........................................................... ....................................................................................... F. ayllonensis Simón & Luciáñez, 1990

­ With 2+2 corneola. Microsensilla: 10/000. Dens with 2 dorsal chaetae and no ventro­apical chaeta. Retinacle with 2+2 teeth and 1 chaeta on the corpus .......................................................................................................................................... F. almanzorensis Luciáñez & Simón, 1991

3. With 1­2+1­2 corneoles. Long and very narrow postantennal organ. Microsensillae: 10/001.