Megalothorax granulosus Schneider & D’Haese, 2013

Schneider, Clément, 2017, Morphological review of the order Neelipleona (Collembola) through the redescription of the type species of Acanthoneelidus, Neelides and Neelus, Zootaxa 4308 (1), pp. 1-94 : 47

Megalothorax granulosus Schneider & D’Haese, 2013

Figs 3 F, 6, 8B, 14A–D.

Material examined. Holotype . ♀ on slide ( MNHN-EA 040170 ), Chile, Puerto Montt , Parque Nacional Alerce Andino, 41°35'22"S 72°34'53"W, 25.xi.2011, extracted with Berlese-Tullgren from low vegetation of the border of the path (bryophyta, herbaceous) and upper soil, in the rainforest, C. Schneider leg., [ MNHNCH]. Paratype . 1 ♀ on slide ( MNHN-EA 040171 ), same data as the holotype, [ MNHN].

Other material. 1 ♀ on slide ( MNHN-EA 040172 (1)) Chile, Santa Lucia, Lago Yelcho, 43°16'46"S 72°26'56"W, 30.xi.2011, extracted with Berlese-Tullgren from Marchantiophyta and upper soil, in the rain forest, C. Schneider leg., [ MNHN].

Description. Addendum to Schneider & D’Haese (2013). Total length of antenna ~ 58.2 µm; max width (Ant. III) ~ 15.7 µm; ratio width: length ~ 0.27; ratio length of Ant. I: Ant. II: Ant. III: Ant. IV ~ 0.24: 0.53: 1: 0.85. Antenna with an apical integumentary process partially covering the apical rod a ( Fig. 14 A–D). With 9 + 9 τchaetae on trunk (Fig. 8B). Abd. IV sternum with 2 + 2 chaetae. Correction from Schneider & D’Haese (2013): with nine ordinary chaetae on Ant. III, with only six ordinary chaetae on Ant. IV and an additional S-chaetae (s5; Fig. 14 A–D); precoxal area of Th. II with only three chaetae (Fig. 8B).

Figures

FIGURE 3. Diagram of the dorsal chaetotaxy of the head. (A) Neelides folsomi; (B) Acanthoneelidus pratensis; (C) Neelus murinus; (D) Megalothorax nigropunctatus; (E) Megalothorax perspicillum; (F) Megalothorax granulosus, integumentary channels not represented. In gray, chaetae absent in juvenile.

FIGURE 14. Antenna, genus Megalothorax. M. granulosus (A) posterior side, (B) anterior side modified after Schneider & D'Haese (2013), (C) ventral side, (D), dorsal side; M. massoudi after Deharveng 1978, (E) posterior side, (F) anterior side; M. minimus (G) posterior side, (H) anterior side.