Typhlodromus (Typhlodromus) setubali Dosse, 1961, Dosse, 1961

Tixier, Marie-Stephane, Allam, Latifa, Douin, Martial & Kreiter, Serge, 2016, Phytoseiidae (Acari: Mesostigmata) of Morocco: new records, descriptions of five new species, re-descriptions of two species, and key for identification, Zootaxa 4067 (5), pp. 501-551: 525-528

publication ID

http://doi.org/10.11646/zootaxa.4067.5.1

publication LSID

lsid:zoobank.org:pub:902CB084-17BB-4952-B738-E6E4E989771B

persistent identifier

http://treatment.plazi.org/id/0F5E879D-2626-4429-9582-A4B2FE8CF8D3

treatment provided by

Plazi

scientific name

Typhlodromus (Typhlodromus) setubali Dosse, 1961
status

 

Typhlodromus (Typhlodromus) setubali Dosse, 1961  

Typhlodromus setubali Dosse, 1961: 313   .

Typhlodromus laurentii   .—Ragusa & Swirski, 1978: 213 Typhlodromus (Typhlodromus) setubali   .—Moraes et al., 2004: 369.

This species, essentially known from the South of the Mediterranean basin, is not very common. It has been rarely reported on crops and nothing is known of its biology. It was already observed in Morocco by McMurtry & Bounfour (1989) on Olea europea   , Cupressus   sp. and Cynodon dactylon   and by Tixier et al. (2003) on vine. Most of the specimens identified here were collected Quercus suber   , Nerium oleander   and Rosmarinus officinalis   .

Specimens examined: 2002, Damon Oum Er Bia River on Marubium incanunum   (4 females), Rosmarinus officinalis   ( Lamiaceae   ) (9 females, 5 males), Agourai on Vitis vinifera   ( Vitaceae   ) (4 females), Beni Slimane on Thuya   sp. ( Cupressaceae   ) (2 females), Cistus mumbyi   ( Cistaceae   ) (1 female); 2003, Ras El Ma on unknown plant (3 females), Mazari Cape on Cistus libanotis   ( Cistaceae   ) (3 females), Road to Souk El Arba on Quercus suber   ( Fagaceae   ) (33 females, 9 males), Nerium oleander   ( Apocynaceae   ) (12 females, 7 males), Gorges de Zegzel on Lavandula dentata   ( Lamiaceae   ) (4 females).

Previous records: Germany, Greece, Israel, Jordan, Morocco, Portugal, Spain, Slovakia, Tunisia.

Redescription of the adult female (n = 15) ( Figs 5–9 View FIGURES 5 – 11 )

Dorsum ( Fig. 5 View FIGURES 5 – 11 ). Dorsal shield 326 (320–335) long and 161 (157–165) wide, with four solenostomes (gd 2, gd 6, gd 8 and gd 9), 17 pairs of dorsal setae and two pairs of sub-lateral setae: j 1 24 (22–25), j 3 30 (25–30), j 4 16 (15–18), j 5 16 (15–18), j 6 19 (15–23), J 2 22 (20–25), J 5 5 (5–8), z 2 17 (15–18), z 3 24 (20–27), z 4 24 (20–27), z 5 17 (15–18), Z 4 44 (40–50), Z 5 67 (60–75), s 4 30 (25–35), s 6 33 (30–37), S 2 36 (32–42), S 4 36 (30–42), r 3 25 (20– 25), R 1 23 (18–25). All setae smooth, except Z 5, serrated. Peritreme extending between j 1 and j 3 ( Fig. 5 View FIGURES 5 – 11 ).

Venter ( Fig. 6 View FIGURES 5 – 11 ). Sternal shield smooth with two pairs of setae and two pairs of lyrifissures; two pairs of sternal setae and lyrifissures (visible on one specimen) on small metasternal plates; posterior margin somewhat straight with posterior projection. Distances between ST 1 – ST 3 61 (50–65), ST 2 – ST 2 59 (55–70), ST 5 –ST 5 61 (55–68). Two pairs of metapodal plates 25 (22–26) long, 5 (4–6) wide for the largest and 13 (12–14) long and 3 (2–3) wide for the smallest. Ventri-anal shield with transverse striae, with four pairs of pre-anal setae, JV 1, JV 2, JV 3 and ZV 2, and no pre-anal pores. Membrane surrounding ventri-anal shield with four pairs of setae ZV 1, ZV 3, JV 4 and JV 5; ventrianal shield 106 (100–110) long, 101 (95–105) wide at anterior corners, and 83 (75–90) wide at level of anus. JV 5 55 (48–60) long. No visible lyrifissures near JV 5.

Legs ( Fig. 7 View FIGURES 5 – 11 ). Leg IV with three macrosetae on the genu, Ge IV 27 (25–28), tibia, STi IV 31 (28–33) and basitarsus ST IV 50 (42–55). Chaetotactic formula of genu II: six setae, 1 2 / 0, 2 /0 1; genu III: seven setae, 1 2 / 1, 2 / 0 1.

Chelicera ( Fig. 8 View FIGURES 5 – 11 ). Fixed digit 22 long with three teeth and movable digit 25 long with one tooth.

Spermatheca ( Fig. 9 View FIGURES 5 – 11 ). U-shaped and saccular ( Denmark et al., 1999), cervix 18 (17–19) long and 10 (9–10) wide, atrium well-differentiated.

Redescription of the adult male (n= 2) ( Figs 10–11 View FIGURES 5 – 11 )

The male was described by Dosse (1961) but very briefly, so we here present a redescription.

Dorsum. Dorsal shield 250, 255 long and 193, 198 wide, with five solenostomes (gd 2, gd 6, gd 4, gd 8 and gd 9). On females, only four solenostomes have been observed (gd 4 absent). This shows intraspecific variation of presence/absence of this solenostome suggesting low reliability of this character for diagnosis. This could be linked to results of Tixier et al. (2011) on the reliability of the solenostome gd 2 for the identification of two Neoseiulus   species. The dorsal shield bears 17 pairs of dorsal setae and two pairs of sub-lateral setae: j 1 10,17; j 3 23, 25; j 4 10, 15; j 5 13, 15; j 6 15, 18; J 2 18, 20; J 5 5; z 2 15; z 3 20, 23; z 4 20, 21; z 5 15, 18; Z 4 40; Z 5 58, 60; s 4 23, 25; s 6 28; S 2 28, 30; S 4 25, 28; r 3 20, 23; R 1 15. All setae smooth. Peritreme short, extending between z 2 and z 3.

Venter ( Fig. 10 View FIGURES 5 – 11 ). Distances between ST 1 – ST 3 63; ST 2 – ST 2 50, 53; ST 5 –ST 5 40, 43. Ventri-anal shield with five pairs of pre-anal setae, JV 1, JV 2, JV 4, ZV 1 and ZV 2, and no pre-anal pores. Membrane surrounding ventri-anal shield with a pair of setae JV 5; ventri-anal shield 90, 93 long, 143, 148 wide at anterior corners, and 100 wide at level of anus. JV 5 48, 60 long.

Legs. Legs IV with three macrosetae on genu, Ge IV 20, tibia, STi IV 15 and basitarsus ST IV 45, 48. Chaetotactic formula of Genu II and III similar to females.

Chelicera ( Fig. 11 View FIGURES 5 – 11 ). Fixed digit 19 long with three teeth and movable digit 16 long with one tooth. Spermatodactyl lance-shaped.

Remarks. Typhlodromus (T.) setubali   and T. (T.) moroccoensis   Denmark (reported once from Morocco on Prunus   sp.) ( Denmark, 1992) are the only two species within the sub-genus Typhlodromus   ( Typhlodromus   ) bearing six setae on genu II. Table 2 provides the measurements and their range calculated using the intraspecific variations around the means proposed by Tixier (2012). The presently observed specimens are similar to the original measurements of T. (T.) setubali   . It is interesting to note that T. (T.) setubali   and T. (T.) moroccoensis   are morphologically very close. Only differences in peritreme length and in the spermatheca shape (on the drawings of the original description) exist. Further analyses would be required to determine if these two species are valid or synonyms.

TABLE 2. Comparison between T. (T.) setubali collected in the present surveys, T. (T.) moroccoensis and T. (T.) setubali (original description). Measurements are taken from the original descriptions of Denmark (1992) for T. (T.) moroccoensis and of Chant & Yoshida-Shaul (1987) for T. (T.) setubali. Variations ranges were calculated according to Tixier (2012) (VAS: Ventrianal shield).

  Typhlodromus (T.) moroccoensis   Typhlodromus (T.) setubali   from Morocco
Teeth on fixed digit Teeth on movable digit Solenostomes on dorsal shield      

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Mesostigmata

Family

Phytoseiidae

Genus

Typhlodromus

Loc

Typhlodromus (Typhlodromus) setubali Dosse, 1961

Tixier, Marie-Stephane, Allam, Latifa, Douin, Martial & Kreiter, Serge 2016
2016
Loc

Typhlodromus setubali

Dosse 1961: 313
1961