Breviseius sennae

Moraes, Gilberto José De, Barbosa, Marina Ferraz De Camargo & Castro, Tatiane Marie Martins Gomes De, 2013, Phytoseiidae (Acari: Mesostigmata) from natural ecosystems in the State of São Paulo, Brazil, Zootaxa 3700 (3), pp. 301-347 : 337-338

Breviseius sennae

( Figures 51–57 )

Diagnosis. Females and males can be distinguished from other phytoseiid species by the combination of characters given in the description of the genus.

Specimens examined. Holotype female, two paratype females and four paratype males from Senna multijuga (Rich.) , Cananéia, State of São Paulo, 14 February 2001, G.J. de Moraes coll., deposited at ESALQ-USP. Two paratype females and two paratype males, same collection data as holotype, deposited at DZSJRP.

Description. Female (n= 5). Figures 51–55 .

Dorsum. Dorsal shield mostly smooth, with anterolateral reticula, with 12 distinguishable pairs of lyrifissures and five pairs of pores, 289 (285–300) long and 177 (157–215) wide. Setae j1 8, j3 12 (12–13), j4 7 (6–8), j5 6 (5– 7), j6 5 (5–6), J2 6 (5–6), J5 3 (2–4), z2 16 (14–17), z4 14 (12–17), z5 6 (6–7), Z4 10 (9–11), Z5 13 (13–15), s4 15 (15–16), s6 12 (12–14), S2 14 (12–16), S4 12 (9–12), S5 7 (7–9), r3 14 (13–14), R1 11 (10–11). Setae smooth and pointed.

Venter. Sternal shield smooth, except for a lateral line at fusion with the endopodal plate and reduced, bearing only St2 and two pairs of lyrifissures; St1 on unesclerotised cuticle; St3 inserted on separate platelets; St 4 set on metasternal shields; distances between St1 - St3 49 (47–52), St2 - St2 54 (52–55). Genital shield smooth; distance between St5 - St5 49 (48–50). Ventrianal shield reduced, ovoid, smooth, 69 (68–71) long, 70 (68–71) wide at anus level, with a pair of pre-anal setae (JV2); JV1, JV4, JV5, ZV1 and ZV2 on unsclerotised cuticle and a pair of small, rounded pre-anal pores posteriad of and about in longitudinal line with JV 2. Ventral setae smooth and pointed. With two pairs of metapodal plates, both of each side almost in line. Peritreme extending almost to level of j1.

Chelicera. Movable cheliceral digit 21 (20–21) long with two teeth; fixed cheliceral digit 20 (19–20) long, with three teeth and a pilus dentilus.

Spermatheca. Calyx tubular, 48 (46–50) long; atrium c-shaped.

Leg macrosetae. Absent. Chaetotaxy: genu II 2-2 /0, 2/1-1; genu III 1-2 /1, 2/0-1.

Male. (n= 4). Figures 56–57 .

Dorsum. Dorsal shield pattern as in female, 248 (247–250) long and 196 (195–200) wide. Setae j1 5 (5–6), j3 11 (10–12), j4 5 (5–7), J5 4 (4–6), j6 6 (5–7), J2 6, J5 3, z2 12 (10–13), z4 13 (10–14), z5 6 (5–7), Z4 8, Z5 10 (9– 11), s4 12 (10–13), s6 9 (9–11), S2 12 (10–12), S4 9 (8–10), S5 8 (7–8), r3 11 (10–12), R1 8 (7–9). Setae smooth and pointed. Peritreme extending to level of z5.

Venter. Ventrianal shield subtriangular, striate; 96 (90–104) long, 120 (112–124) wide at anterior corners, with three pairs of setae (JV1, JV2 and ZV2), four pairs of lyrifissures and a pair of small, rounded pre-anal pores posterolaterad of JV2.

Chelicera. Spermatodactyl L-shaped, shaft 13 long.

Leg macrosetae. Absent. Chaetotaxy of genua II and III as in female.

Etymology. The name sennae refers to Senna , genus of the plant substrate from which the type specimens were collected.

Figures

FIGURES 51 – 57. Breviseius sennae n. sp. Female: 51. Dorsal shield, 52. Ventral idiosoma, 53. Spermatheca, 54. Chelicera, 55. Genu, tibia and tarsus of leg IV. Male: 56. Spermadactyl, 57. Ventrianal shield.