Galendromimus (Galendromimus) roraimensis, Demite, Peterson R., Gondim, Manoel G. C., Lofego, Antonio C. & Moraes, Gilberto J., 2014

Demite, Peterson R., Gondim, Manoel G. C., Lofego, Antonio C. & Moraes, Gilberto J., 2014, A new species of Galendromimus Muma from Brazil (Acari: Phytoseiidae), with a review of the tribe Galendromimini Chant & McMurtry, Zootaxa 3835 (4), pp. 593-599 : 594-596

Galendromimus (Galendromimus) roraimensis sp. n. Demite & Lofego

( Figs 1–7 )

Diagnosis. Females with dorsal shield reticulate, except for a smooth band behind Z4; z3 and J2 present, S5, JV4 and ZV3 absent; all dorsal idiosomal setae set on tubercles. Calyx tubular, slightly inflated near atrium.

Description. Female (n= 6). Dorsum. Dorsal shield reticulate, except for a transverse smooth band behind Z4, 275, 294 (275–317) long, 150, 151 (150–155) wide at level of s4; with two pairs of lyrifissures and four pairs of pores; setae: j 1 19, 19 (17–20), j 3 16, 16 (15–17), j 4 11, 11 (10–12), j 5 11, 11 (10–12), j 6 12, 12 (12–13), J 2 13, 13 (12-13), J5 9, 9 (9–10), z 2 18, 18 (16–20), z 3 15, 15 (13–16), z 4 25, 25 (23–26), z 5 11, 11 (10–12), Z1 41, 38 (34–41), Z4 59, 61 (58–69), Z5 79, 79 (76–85), s 4 27, 28 (26–30), s6 34, 34 (30–36), r 3 17, 17 (15–19). Setae z4, s4, s6, Z1, Z4 and Z5 distinctly serrate; j3, z2 and z3 slightly serrate; j1, j4, j5, j6, J2, J5, z5 and r3 smooth; all setae set on tubercles.

Venter. Sternal shield lightly sclerotised; with three pairs of setae; st4 on unsclerotised cuticle; distances between st1-st3 58, 58 (57–60), st2-st2 57, 61 (57–67); lyrifissures not visible. Genital shield smooth; distance between st5-st5 59, 61 (58–64). Ventrianal shield subrectangular, constricted at level of JV3; smooth anterior to anal opening and reticulate elsewhere; 95, 97 (94–100) long, 91, 89 (84–94) wide at level of ZV2 and 81, 77 (70–83) wide at level of anus; with four pairs of pre-anal setae (JV1, JV2, JV3 and ZV2) and a pair of pores posteromesad of JV2. Seta JV 5 12, 14 (12–17). All ventral setae smooth. Metapodal plates not visible.

Peritreme. Extending anteriorly almost to level of j1.

Spermatheca. Calyx tubular, curved, 42, 44 (41–47) long, slightly inflated near atrium; the latter small.

Chelicera. Movable digit 22, 21 (20–21) long, with a single minute tooth in addition to apical tooth; fixed digit 22, 22 (21–23), with two subapical teeth, distal to setiform pilus dentilis.

Legs. Macrosetae absent. Chaetotaxy: genu II: 2, 2/0, 2/0, 1; genu III: 1, 2/1, 2/0, 1.

Male (n= 1). Dorsum. Dorsal shield pattern similar to female, 215 long and 132 wide. Setae j1 18, j3 15, j4 12, j5 12, j6 12, J2 11, J5 6, z2 16, z3 15, z4 20, z5 12, Z1 30, Z4 36, Z5 43, s4 24, s6 26, r3 16. Shape of setae as in female; all setae set on tubercles.

Peritreme. Almost reaching level of j1.

Venter. Sternogenital shield smooth. Ventrianal shield subtriangular, smooth, 82 long and 102 wide at anterior corners, with four pairs of pre-anal setae (JV1, JV2, JV3 and ZV2), and a pair of pre-anal pores; lyrifissures not visible.

Chelicera. Spermadactyl boomerang-shaped; shaft and foot 11 and 7 long, respectively.

Legs. Macrosetae absent, chaetotaxy of genua II and III as in female.

Etymology. The name roraimensis refers to “from Roraima”, the Brazilian State where the types were collected.

Type material. Holotype female: Iracema (2º10’N; 61º03’W), Roraima State, Brazil, on unidentified Arecaceae , March 30, 2010. Paratypes: three females and one male, same host and locality as holotype; one female,

Bonfim (3°21’N; 59°49’W), Roraima State, Brazil, on Musa sp. ( Musaceae ), April 29, 2010; one female, Bonfim (3º21’N; 59º49’W), on Cocos nucifera (Arecaceae) , April 29, 2010. All types deposited at Departamento de Entomologia e Acarologia, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo (ESALQ-USP), Piracicaba, São Paulo State, Brazil, except the last paratype, deposited at Departamento de Zoologia e Botânica, Universidade Estadual Paulista ( UNESP), São José do Rio Preto, São Paulo State, Brazil. All types collected by T.M.M.G. de Castro and A. L. Marsaro Jr..

Remarks. This species differs from all other species of Galendromimini by the presence of dorsal seta z3. Except for this characteristic, it is very similar to Galendromimus (Galendromimus) sanctus De Leon. Both species lack seta S5; have the dorsal shield reticulate, except for a transverse band behind Z4; setae j4, j5, j6, J2, J5 and z5 are short and smooth; j3, z2, z3, z4, Z4, Z5, s4 and s6 are longer, serrate and inserted in tubercles; the sternal shield is lightly sclerotised or unsclerotised; the ventrianal shield is smooth anterior to the anal opening and reticulate elsewhere. For this reason, it was included as a member of Galendromimus (Galendromimus) instead of placing it in a new genus.

Figures

FIGURES 1 – 7. Galendromimus (Galendromimus) roraimensis sp. n. Female: 1. Dorsal shield; 2. Ventral idiosoma; 3. Spermatheca; 4. Chelicera; 5. Genu, tibia and basitarsus of leg IV. 6 and 7; Male: 6. Ventrianal shield; 7. Spermadactyl.