Tetracanthella fusca, Potapov & Deharveng, 2005

Potapov, Mikhail & Deharveng, Louis, 2005, Three new species of Tetracanthella (Collembola, Isotomidae) from western Europe, Zoosystema 27 (1), pp. 85-93 : 91-93

T. fusca n. sp. belongs to the pilosa -group.

Potapov M. & Deharveng L.

Presence of chaeta on retinaculum, long empodium, reduced axial chaetom and short furca are shared only with T. similis Deharveng, 1987 , a rare species of Alpes-Maritimes. The new species differs from it in much shorter s-chaetae on tergites ( Fig. 3B, F ), darker coloration and smaller dorsal plates on Abd. IV.

Figures

FIG. 3. — A-E, Tetracanthella fusca n. sp.; A, ocelli (pars) and PAO; B, dorsal chaetotaxy of Abd. II-VI; C, furcal area; D, dorsal plates in axial area near p1-chaetae of Abd. IV; E, chaetotaxy of Tita III; F, T. similis Deharveng, 1987, dorsal chaetotaxy of Abd. III-IV. In B and F, axial chaetae and s-chaetae are marked. Abbreviations: Abd. II-VI, abdominal tergites II-VI; PAO, postantennal organ; Tita III,