Africoseiulella flechtmanni Kreiter

Kreiter, Serge & Tixier, Marie-Stéphane, 2006, A new genus and species of phytoseiid mites (Acari: Mesostigmata) from southern Tunisia, with discussion of its phylogenetic position, Zootaxa 1237, pp. 1-18 : 6-12

publication ID	https://doi.org/ 10.5281/zenodo.172799
DOI	https://doi.org/10.5281/zenodo.5658427
persistent identifier	https://treatment.plazi.org/id/E52A87A7-BA2B-2860-FE8C-F94CC98AFBBE
treatment provided by	Plazi
scientific name	Africoseiulella flechtmanni Kreiter
status	sp. nov.

Treatment

Africoseiulella flechtmanni Kreiter View in CoL sp. nov.

( Figs 1–9 View FIGURE 1 View FIGURE 2 View FIGURES 3 – 4 View FIGURE 5 View FIGURE 6 View FIGURES 7 – 8 View FIGURE 9 )

Diagnosis

See characteristics given for the genus.

Description

Adult Female ( Figs 1–4 View FIGURE 1 View FIGURE 2 View FIGURES 3 – 4 ) (n = 27). Dorsum ( Fig. 1 View FIGURE 1 ). Dorsal shield 245–302 long and 114–185 wide, with no solenostome, 8 pairs of poroids. Setae j1 5–8, j3 5–8, j4 6–8, j5 5, j6 8–9, J2 8–9, J5 5, z2 6–9, z 3 8–10, z4 6–9, z 5 7–10, Z 4 8–10, Z 5 8–10, s 4 8 –10, s 6 8 –10, S 2 8 –10, S 5 8 –10, r 3 8–10.

Peritreme ( Fig. 1 View FIGURE 1 ). Reaching only region between levels of setae r3 and s4.

Venter ( Fig. 2 View FIGURE 2 ). Distances between ST1–ST3 52–58, ST2–ST2 34–49, ST3–ST3 42–58. Metapodal shields 25–33 long, 2 wide. Ventrianal shield 76–88 long, 42–58 wide at level of anterior corners and 38–48 wide at level of anus. Membrane surrounding ventrianal shield with 4 pairs of round to oblong poroids. Setae JV5 transversely aligned with anterior margin of anus.

Legs. Chaetotactic formula of genu II: 1–2/0, 2/0–1; genu III: 1–2/0, 2/0–1. Lengths of legs: I, 155–165; II, 145–150; III, 135–139; IV, 170–180.

Chelicera ( Fig. 3 View FIGURES 3 – 4 ). Fixed digit 15–18, movable digit 13–15, both edentate.

Gnathosoma elongate ( Fig. 3 View FIGURES 3 – 4 ), 162–170 from base to the top of devaginated chelicerae. Proximal segment of chelicera: 16, second median or intermediate segment: 50.

Spermatheca ( Fig. 4 View FIGURES 3 – 4 ). Cervix shallowly domed, 5–8 in diameter and 1 high; atrium difficult to see but discernible, 4 to 6 µm distant from base of calyx, to which it is linked by a neck; major duct flaring from the sperm induction pore toward calyx.

Adult Male ( Figs 5–7 View FIGURE 5 View FIGURE 6 View FIGURES 7 – 8 ) (n = 5). Dorsum ( Fig. 5 View FIGURE 5 ). Dorsal shield 225–247 long, 114–135 wide. Setae j1 6–9, j3 7–9, j4 5–6, j5 3–5, j6 6–8, J2 6–8, J5 4–5, z2 8–9, z3 8–9, z4 7–8, z5 5–8, Z4 8–9, Z5 7–8, s4 8 –9, s6 8 –9, S2 8, S5 8, r3 6.

Peritreme ( Fig. 5 View FIGURE 5 ). Reaching only region between levels of setae s4 and s6.

Venter ( Fig. 6 View FIGURE 6 ). Distances between ST1–ST5 47–55, ST2–ST2 36–38, ST5–ST 5 31–33. Ventrianal shield: central section 73–88 long, width 45–59 at the widest point. Setae JV5 transversely aligned with posterior margin of anus.

Legs. Chaetotactic formula of genu II and III as in female. Lengths of legs: I, 145–150; II, 135–139; III, 135–138; IV, 170–180.

Chelicera. Spermatodactyl as shown in Fig. 7 View FIGURES 7 – 8 . Shaft 8 long.

Deutonymph ( Figs 8–9 View FIGURES 7 – 8 View FIGURE 9 ) (n= 3). Dorsum ( Fig. 8 View FIGURES 7 – 8 ). Dorsal shield 240 long, 88 wide. Setae j1 5, j3 5, j4 5, j5 4, j6 5, J2 5, J5 3, z2 5, z3 5, z4 5, z5 5, Z4 5, Z5 5, s4 6, s6 6, S2 6, S5 6, r3 7.

Peritreme ( Fig. 8 View FIGURES 7 – 8 ). Shorter than in adults, reaching the level of s6.

Venter ( Fig. 9 View FIGURE 9 ). Sternal shield not visible. Ventrianal shield with no preanal setae or pores. Membrane surrounding ventrianal shield with 3 pairs of setae and 1 pair of oblong poroids; ventrianal shield 50 long, 42 wide at level of anterior corners and 35 wide at level of anus. Setae JV5 transversely aligned with posterior margin of anus.

Locality and type material

Holotype female, 1 paratype female and 1 paratype male (on 3 preparations) collected on an unknown, low growing weed, Palmeraie de Chekmo, Tunisia, coll. Ph. Auger, VII 2000, deposited at Muséum National d’Histoire Naturelle in Paris. Twentyfour paratype females (on 23 preparations), 2 paratype males (on 2 preparations) and 3 paratype deutonymphs (on 2 preparations) collected on an unknown, low growing weed, Palmeraie de Chekmo, coll. Ph. Auger, VII2000, deposited at ENSA.M / INRA Acarology Laboratory Collection.

Note

The position of seta JV5 is very odd in the genus described here. In order to ascertain the identity of this seta, the immature stages were observed. JV5 is already present in the larval stage and JV4 only appears in the deutonymphal stage ( Chant, 1993). Unfortunately, the available larvae and protonymphs were not in adequate condition to be evaluated, and it was not possible to discern whether JV5 was or was not present. In the deutonymph, a seta was clearly observed in the region normally occupied by JV4. Because JV5 is present in all known phytoseiid species, we conclude that JV5 is present in deutonymphs and adults of the new species here described and that JV4 is absent.