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Fig. 3 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Fig. 3. Machilinus petrophilus sp. nov. (E – male, holotype;A–D – female, paratype): A – urocoxite VIII, with anterior gonapophyses; B – urocoxite IX, with posterior gonapophyses; C – distal part of anterior gonapophysis; D – distal part of posterior gonapophysis; E – urocoxite IX, with penis. Scale bar: 0.1 mm.

Fig. 7 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Fig. 7. Charimachilis rostoviensis sp. nov., female, holotype: A – urosternite and urocoxites V (part); B – urosternite and urocoxites VII (part); C – urotergite X (part); D – anterior gonapophysis; E – posterior gonapophysis. Scale bar: 0.1 mm.

Fig. 6 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Fig. 6. Charimachilis rostoviensis sp. nov., female, holotype: A – distal part of cercus; B – eyes and ocelli, front view; C – 1st–3rd articles of maxillary palpus; D – 4th–7th articles of maxillary palpus; E – labial palpus, with labium (part); F – distal part of mandible; G – part of fore leg. Scale bar: 0.1 mm.

Fig. 4 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Fig. 4. Machilinus obscurus sp. nov. (A–C, F, G, H – male, holotype; D, E – female, paratype): A – scapus, pedicellus and two basal annuli of flagellum; B – head, front view; C, D – maxillary palpus; E, F – labial palpus and labium (part); G – distal part of mandible; H – hind leg. Scale bar: 0.1 mm.

Fig. 5 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Fig. 5. Machilinus obscurus sp. nov. (D – male, holotype; A–C – female, paratype): A – urocoxite IX, with anterior gonapophysis; B – distal part of anterior gonapophyses; C – distal part of posterior gonapophysis; D – urocoxite IX, with penis. Scale bar: 0.1 mm.

Fig. 1 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Fig. 1. Machilinus petrophilus sp. nov. (B, D, E, G–K – male, holotype; A, C, F – female, paratype): A – scapus and pedicellus of antenna; B – head, frontal view; C – distal part of cercus; D – maxillary palpus; E – 1st–3rd articles of maxillary palpus; F, G – labial palpus and labium (part); H – apical article of labial palpus; I – distal part of mandible; J – part of hind leg; K – pretarsus of hind leg. Scale bar: 0.1 mm.

Figs 8–9 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Figs 8–9. Habitats of the new species. 8 – habitat of Machilinus petrophilus sp. nov., Amvrosiivka, July 22, 2019. 9 – habitat of Machilinus obscurus sp. nov., Starobeshevo, right bank of the Kalmius river, September 24, 2019. (Photos by V. Martynov).

Fig. 2 in Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia

Fig. 2. Machilinus petrophilus sp. nov. (A, D – male, holotype; B, C, E – female, paratype): A, B – urosternite and urocoxites V (part); C – urosternite and urocoxites VII (part); D – pronotum (part); E – urotergite I (part). Scale bar: 0.1 mm.

FIGURE 5 in New species of Neomachilellus Wygodzinsky 1953 (Insecta: Archaeognatha: Meinertellidae) from Madre de Dios, Peru

FIGURE 5. Neomachilellus (Neomachilellus) mercurialis sp. nov. Maxillary palpus. (A) Inner face. B) Outer face. Scale bar: 1 mm.

FIGURE 6 in New species of Neomachilellus Wygodzinsky 1953 (Insecta: Archaeognatha: Meinertellidae) from Madre de Dios, Peru

FIGURE 6. Neomachilellus (Neomachilellus) mercurialis sp. nov. A, C, E) Ventral side. B, D, F) Dorsal side. A, B) Forelegs. C, D) Middle legs. E, F) Hind legs. Scale bar: 1 mm.

FIGURE 3 in New species of Neomachilellus Wygodzinsky 1953 (Insecta: Archaeognatha: Meinertellidae) from Madre de Dios, Peru

FIGURE 3. Neomachilellus (Neomachilellus) mercurialis sp. nov. Habitus partially decayed. Scale bar: 1 mm.

FIGURE 4 in New species of Neomachilellus Wygodzinsky 1953 (Insecta: Archaeognatha: Meinertellidae) from Madre de Dios, Peru

FIGURE 4. Neomachilellus (Neomachilellus) mercurialis sp. nov. A) Labial palpus. B) Antennal scape and flagellum, external face. C) Habitus and shape of the head, compound eyes and ocelli. D) Antennal scape and flagellum, internal face. Scale bar: 1 mm.

FIGURE 2 in New species of Neomachilellus Wygodzinsky 1953 (Insecta: Archaeognatha: Meinertellidae) from Madre de Dios, Peru

FIGURE 2. Neomachilellus (Neomachilellus) mercurialis sp. nov. Habitat and field photo of A) Tree trunk where specimens were collected at Los Amigos Biological Station (LABS). B) C) Habitus of N. (N.) mercurialis sp. nov. on another tree with bark. Photo by: Avila, A.

FIGURE 1 in New species of Neomachilellus Wygodzinsky 1953 (Insecta: Archaeognatha: Meinertellidae) from Madre de Dios, Peru

FIGURE 1. Map showing the distribution of the species type-localities of Neomachilellus Wygodzinsky 1953 in South America. The dots represent the species type-localities, the orange ones belong to Neomachilellus s. str., and the blue ones to the subgenus Praeneomachilellus Sturm & Poinar 1997. The yellow star represents the Los Amigos Biological Station (LABS), the typelocality of the new species Neomachilellus (Neomachilellus) mercurialis sp. nov. Palacios-Martinez.