Typhlodromus (Anthoseius) constrictus Zannou, Moraes & Oliveira, 2008

Ueckermann, Edward A., Zannou, Ignace D., De Moraes, Gilberto J., Oliveira, Anibal R., Hanna, Rachid & Yaninek, John S., 2008, Phytoseiid mites of the tribe Typhlodromini (Acari: Phytoseiidae) from sub-Saharan Africa, Zootaxa 1901 (1), pp. 1-122 : 28-29

Typhlodromus (Anthoseius) constrictus Zannou, Moraes & Oliveira , n. sp.

( Fig. 11 )

Diagnosis. This species is characterized by having dorsal shield reticulate, dorsal setae slightly thickened; setae Z4 serrate, Z5 serrate and knobbed; posterior margin of sternal shield with a trapezoidal median projec- tion; ventrianal shield with 4 pairs of pre-anal setae (seta JV3 present); caudoventral seta JV5 smooth and knobbed; calyx of spermatheca bell-shaped, constricted near atrium, then flaring near atrium; portion of major duct close to atrium at least as wide as calyx; one macroseta on basitarsus of leg IV.

FEMALE. (4 specimens measured). Idiosomal setal pattern: 12A:8A/JV:ZV.

Dorsum. Dorsal shield 305 (296–318) long and 171 (165–178) wide, strongly reticulate. With 5 pairs of solenostomes. Setae j1 20 (19–21), j3 19 (19–20), j4 13 (13–14), j5 14 (14–15), j6 16 (16–17), J2 20 (20–21), J5 9 (8–10), z2 16 (15–17), z3 18 (18–19), z4 19 (18–20), z5 15 (14–15), Z4 29 (29–30), Z5 36 (35–39), s4 20 (20–21), s6 22 (22–23), S2 24 (24–25), S4 26 (25–26), S5 18 (17–20), r3 17 (16–19), R1 16 (16–17). Setae smooth and sharp-tipped, except Z4, serrate, and Z5, serrate and knobbed. None of these setae set on tubercles .

Peritreme. Extending to level of j1.

Venter. Sternal shield smooth, with 3 pairs of setae; posterior margin with a trapezoidal median projection; distances between ST1-ST3 61 (59–64), ST2-ST2 56. Genital shield smooth; distance between ST5-ST5 57 (56–59). Ventrianal shield smooth, pentagonal, with anterior margin convex, 97 (93–99) long, 70 (68–73) wide at level of ZV2, 59 (55–63) wide at level of anus, with 4 pairs of pre-anal setae (seta JV3 present); elliptical pre-anal pores posteromesad of JV2. With 2 pairs of metapodal shields. Caudoventral setae smooth and sharp-tipped, except for JV5, knobbed.

Chelicera. Movable digit 27 (27–28) long, with 3 teeth; fixed digit 25 long, with 4 – 5 teeth.

Spermatheca. Calyx tubular, abruptly constricted near atrium, 8 long; atrium distinct.

Legs. Macroseta knobbed: St IV 22. Genu, tibia and tarsus of leg IV with 4, 3 and 1 (in the latter, in addition to the macroseta) knobbed setae, respectively. Chaetotaxy: genu II: 2-2/0, 2/0- 1; genu III: 1-2/1, 2/0-1.

Locality and type material. Holotype and 2 paratype females from Parkia biglobosa, Djougou, Département de l’Atacora , Benin, 30-VI-1992, A. Onzo, deposited at ESALQ-USP; 1 paratype female from the same plant and location, 2-IX-1992, B. Eklou, deposited at IITAIM.

Etymology. The name constrictus refers to the constriction of the calyx of the spermatheca of this species.

Remarks. Typhlodromus (A.) crassus Van der Merwe differs by having setae J2, Z4, Z5, S2 and S4 inserted on tubercles and by having a macroseta on genu of leg IV. Typhlodromus (A.) acaciae , T. (A.) gutierrezi Blommers and T. (A.) apoxys also differ by not having calyx of spermatheca constricted near atrium, by having major duct narrower than calyx, and by lacking knobbed setae on leg IV in addition of the macroseta.

Figures

FIGURE 11. Typhlodromus (Anthoseius) constrictus Zannou, Moraes & Oliveira, n. sp. (female): A. Dorsal shield; B. Ventral surface; C. Spermatheca; D. Leg IV.