Typhlodromips extrasetus, G. J. De Moraes, A. R. Oliveira & I. D. Zannou, 2001

G. J. De Moraes, A. R. Oliveira & I. D. Zannou, 2001, New phytoseiid mites (Acari: Phytoseiidae) from tropical Africa, Zootaxa 8, pp. 1-10 : 4-6

Typhlodromips extrasetus n. sp. ( Fig. 3 )

DIAGNOSIS – This species is similar to Typhlodromips culmulus (Van der Merwe, 1968) and Typhlodromips shi (Pritchard & Baker, 1962) from central Africa, Typhlodromips quaesitus (Wainstein & Beglyarov, 1971) and Typhlodromips syzygii (Gupta, 1975) from Asia, and Typhlodromips mangleae DeLeon, 1967 and Typhlodromips pederosus (El­ Benhawy, 1978) from South America. However, it differs from those species by having seta J1. The new species is also similar to Typhlodromips tanzaniensis Yoshida­Shaul & Chant, 1988 , which also has seta J1, but differs from it by having R1 distinctly off dorsal shield, J2 closer together, shorter Z4, well sclerotized sternal shield and ventrianal shield ca. as wide at level of ZV2 as at level of anus.

FEMALE – (3 specimens measured)

Dorsum – Dorsal shield reticulate, 316 (304­328) long and 212 (200­213) wide at widest level of the proscutum. Setae j1 16 (13­18), j3 18 (14­21), j4 12 (8­16), j5 13 (8­ 16), j6 14 (11­16), J1 14 (11­16), J2 14 (13­16), J5 9 (8­10), z2 13 (11­14), z4 14 (8­16), z5 12 (10­14), Z1 15 (10­19), Z4 26 (22­26), Z5 59 (58­61), s4 17 (14­19), S2 13 (10­16), S4 10 (8­10), S5 10 (8­11), r3 13 (10­16), R1 10 (8­10). All setae smooth, except Z4 and Z5 which are serrate. Holotype with r3 on edge of dorsal shield on one side; paratypes with r3 off dorsal shield. Setae J1 ca. as close together as setae j6.

Peritreme – Extending forward to level between insertions of j1 and j3.

Venter – All shields distinct and smooth. Sternal shield with 3 pairs of setae and 2 pairs of lyrifissures. Distances between ST1­ST3 53 (50­56), ST2­ST2 60 (58­61), ST5­ ST5 58 (56­59). With 2 pairs of metapoldal shields. Ventrianal shield vase­shaped, 100 (88­101) long, 78 (69­86) wide at level of ZV2 and 78 (72­85) wide at level of anus, with 3 pairs of preanal setae and a pair of large ellipsoidal pores slightly posteromesad to JV2.

Chelicera – Movable digit 27 long, with 3 teeth; fixed digit 24 long, with 8 teeth.

Spermatheca – Calyx plate­shaped, widest diameter ca. 12; atrium distinct.

Legs – With a small knob at the tip of each leg macroseta: Sge I 20 (19­21), Sge II 18 (18­19), Sge III 25 (24­28), Sti III 17 (16­18), Sge IV 34 (32­37), Sti IV 22 (19­24) and St IV 40. Chaetotaxy of genu II 2 ­(2,2)/0­1; genu III 1 ­(2,2)/1­1.

MALE – (1 specimens measured).

Dorsum – Dorsal shield reticulate, 278 long, 188 wide at the widest level of proscutum. Setae j1 15, j3 20, j4 13, j5 13, j6 13, J1 10, J2 15, J5 8, z2 13, z4 14, z5 10, Z1 13, Z4 23, Z5 43, s4 15, S2 13, S4 10, S5 9, r3 15, R1 10. All setae smooth, except Z4 and Z5 which are serrate.

Peritreme – Extending forward to level of insertion of j1.

Spermatodactyl ­ Shaft 17 long.

Venter – Ventrianal shield sub­triangular, 113 long and 145 wide at the anterior corners, with few transversal striae anteriorly, 3 pairs of preanal setae, 4 pairs of small pores, one by anterior margin and 3 anterolateral, and a pair of large pores slightly posteromesad to JV2.

Legs – With a small knob at the tip of each leg macroseta: Sge I 15, Sge II 13, Sge III 18, Sti III 15, Sge IV 25, Sti IV 20 and St IV 40. Chaetotaxy of genua of legs II and III as in female.

TYPE MATERIAL – Holotype female and 1 allotype male from Morinda lucida, Takon , Benin, 29­V­1991, coll. A. Onzo; 2 paratype females, Kenya, 29­XI­1989, coll. J.S. Yaninek.

ETYMOLOGY – The epithet extrasetus refers to the presence of J1 on the dorsal shield of this new species, a seta rarely found in phytoseiid mites.

Figures

FIGURE 3. Typhlodromips extrasetus Moraes, Oliveira & Zannou, n. sp.: A. Female dorsal shield; B. Female ventral surface; C. Spermatheca; D. Female leg IV; E. Spermatodactyl; F. Male ventrianal shield.