Euseius vivax (Chant & Baker)

Lofego, Antonio Carlos, Barbosa, Marina Ferraz De Camargo, Demite, Peterson Rodrigo & Moraes, Gilberto José De, 2024, Phytoseiidae (Acari: Mesostigmata) of the subfamily Amblyseiinae from Brazil, Zootaxa 5439 (1), pp. 1-306 : 143-145

Euseius vivax (Chant & Baker) ( Figure 102)

Amblyseius vivax Chant & Baker, 1965: 23 .

Euseius vivax . — Denmark & Muma, 1973: 260; McMurtry et al., 1985: 113; Moraes et al., 1986: 56, 1991: 132, 2000: 243, 2004b: 69; Chant & McMurtry, 2005b: 216, 2007: 123; Lopes et al., 2015: 186 .

Specimens measured. SP (3).

Dorsal shield of female lightly reticulate on the anterolaterally and on opisthonotal region, 337 (332–345) long and 218 (200–227) wide. Setal lengths: j1 27 (25–29), j3 24 (23–25), j4 11 (10–13), j5 13 (12–13), j6 13 (13–14), J2 15 (14–17), J5 5, z2 19 (18–20), z4 21 (20–25), z5 13 (12–15), Z1 14 (14–15), Z4 16 (15–16), Z5 70 (65–73), s4 33 (33–35), S2 18 (18–19), S4 21 (18–23), S5 25 (23–27), r3 18 (17–20) and R1 14 (13–16). Peritreme extending to level between j3 and z2. Distances between st1–st3 56 (53–58), st2–st2 70 (67–74), st5–st5 75 (72–80). Ventrianal shield 103 (100–109) long, 56 (55–59) wide at level of Zv2 and 78 (75–82) at anus level. Spermathecal calyx tubular, slightly swollen near atrium, 18 (16–21) long; atrium slightly wider than calyx. Fixed cheliceral digit 29 (26–30) long, with 3–4 teeth; movable digit 24 (24–25) long, with one tooth. Macrosetae on legs I–IV, sharp-tipped; SgeI 21 (28–26), SgeII 24 (23–24), SgeIII 30 (29–30), SgeIV 45 (42–48), StiIII 21 (18–24), StiIV 35 (32–37) and StIV 60 (57–62) .

Distribution in Brazil. São Paulo ( Denmark & Muma, 1973).

Distribution elsewhere. Costa Rica, Cuba, El Salvador, Guadeloupe, Honduras, La Desirade, Les Saintes, Marie Galante, Mexico, Nicaragua, Panama, Saint Barthelemy, Saint Martin, USA and Venezuela.

Remarks. Lopes et al. (2015) redescribed E. vivax based on the holotype and specimens collected in the type locality. These authors determined that this species has lightly reticulated dorsal shield and sharp-tipped macrosetae of leg IV. The specimens examined in this study are similar to original description and redescription provided by Lopes et al. (2015), except for having s4 approximately 1.4 and 1.2 times shorter, respectively. Outside the American continent and the Caribbean islands, this species is only reported from Montenegro ( Mijuskovic & Tomasevic, 1975). Given the known distribution of this species, it seems that the report from Montenegro is a misidentification.