Galendromimus multipoculi, Zacarias & De Moraes & McMurtry, 2002

Zacarias, M. S., De Moraes, G. J. & McMurtry, J. A., 2002, A new species of Galendromimus (Acari: Phytoseiidae) from Brazil, Zootaxa 102, pp. 1-6 : 2-4

Galendromimus multipoculi n. sp.

( Fig. 1 )

DIAGNOSIS: This new species differs from other species in the genus by having seta Z1 at about the same level or slightly posterior to the level of setae J2 and by its "pits" on the central region of the dorsal shield. It further differs from Galendromimus alveolaris (DeLeon, 1957) by the long peritreme, from Galendromimus paulista Zacarias & Moraes, 2001 by the presence of J2 and from Galendromimus borinquensis DeLeon, 1965 by the presence of J2 and JV3, by the absence of JV4 and ZV3 and by the shape of the spermatheca.

FEMALE (8 specimens).

Dorsum ­ Dorsal shield rugose in the central region, with ca. 50 “pits” evenly distributed between setae s4 and Z4; imbricate anterolaterally and along bases of setae s4 and s6; striate laterally, behind s4; 292 (278­306) long and 172 (164­180) wide. Setae j1 17 (15­19), j3 18 (17­19), j4 10 (8­12), j5 9 (9­10), j6 11 (9­13), J2 12 (11­15), J5 10 (7­ 12), z2 21 (20­22), z4 33 (30­37), z5 12 (10­13), Z1 37 (34­42), Z4 51 (46­57), Z5 50 (46­ 52), s4 31 (27­36), s6 33 (27­44), S5 17 (16­21), r3 16 (16­18). Setae j1, j3, z2, z4, Z4, Z5, s4, s6 and S2 barbed; other setae smooth. Setal pattern 11D:6C/JV­4:ZV­3.

Peritreme ­ Extending anteriorly almost to j1.

Venter ­ Ventral shields smooth, except for a few diagonal striae on ventrianal shield near the anus. Sternal shield lightly sclerotized, with 3 pairs of setae and 2 pairs of pores; distances between St1­St3 61 (59­66), St2­St2 51 (48­53) and St5­St5 46 (44­48). With two pairs of metapodal shields. Ventrianal shield with 4 pairs of preanal setae and a pair of pores; length of shield 86 (79­92), width at level of ZV2 48 (39­51), width at level of anus 53 (49­56). Setae JV5 and ZV1 on the integument surrounding ventrianal shield; JV5 smooth.

Chelicera ­ Movable digit 21 (21­22), with 1 tooth; fixed digit 19 (18­21), with 2 teeth.

Spermatheca ­ Calyx tubular­saccular 20 (18­22) long, well or slightly sclerotized in different specimens. Major duct broad “bladder­like” on most specimens.

Legs ­ Macrosetae absent.

MALE (4 specimens).

Dorsum ­ Dorsal shield pattern as in female, 231 (216­239) long, 139 (126­147) wide. Setae j1 13 (10­15), j3 15 (14­16), j4 10 (9­12), j5 10 (9­10), j6 11 (9­12), J2 10 (9­10), J5 8 (6­9), z2 16 (14­19), z4 20 (18­23), z5 11 (9­13), Z1 23 (21­24), Z4 28 (26­30), Z5 30 (28­31), s4 20 (18­21), s6 19 (15­21), S5 13 (11­15), r3 14 (13­14). Setae j1, j3, z2, z4, Z4, Z5, s4, s6 and S2 barbed; other setae smooth.

Peritreme ­ Extending anteriorly almost to j1.

Venter ­ Ventral shields smooth, except for a few diagonal striae laterally and posteriorly on the ventrianal shield. Distances between St1­St3 57 (54­59), St2­St2 44 (43­ 45) and St5­St5 27 (25­28). Ventrianal shield with 5 pairs of setae in addition to perianals and a pair of pores; length of shield 91 (79­114), width at level of anterior angles 91 (71­ 112).

Chelicera ­ Movable digit 17, with 1 tooth; fixed digit 15 (14­15), with 2 teeth. Shaft of spermatodactyl 17 (16­19).

Legs ­ Macrosetae absent.

TYPE MATERIAL: Holotype female, allotype male, 4 paratype females and 2 paratype males, along Ribeira de Iguape River, Iguape, State of São Paulo, Brazil, from Inga uruguensis Hook & Arn. (Mimosaceae) , M.S. Zacarias, deposited at Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Entomologia, Fitopatologia e Zoologia Agrícola, Piracicaba­SP, Brazil. Three paratype females and 1 paratype male, same collection data as holotype, deposited at United States National Museum of Natural History, in the Florida State Collection of Arthropods, Entomology Section, Division of Plant Industry, Gainesville, Florida, USA.

ETYMOLOGY ­ The epithet multipoculi refers to the presence of several "pits" on the central region of the dorsal shield of adult males and females.

REMARKS: The seta laterad to J2 is identified as Z1 despite its somewhat posterior position because of its position anterior to lyrifissure idS1; concurrently, this interpretation is consistent with that for other species of Galendromimus .

Chant & McMurtry (1994) characterized the mites in the genus Galendromimus by a combination of the following characteristics: presence of setae s6 and Z1; absence of setae z3, S2, S4 and R1; setae Z4 and Z5 elongate, thick and strongly serrated. Additional characteristics of the known members of this genus are the absence of leg macrosetae and the presence or absence of setae J2 and S5. Two subgenera are recognized in this genus ( Chant & McMurtry, 1994), Galendromimus Muma and Nothoseius DeLeon , the former with 5 (including the new species here described) and the second with 1 species. The species here described fits the description of the former subgenus.

Galendromimus paulista and G. borinquensis are the only Typhlodrominae known to lack seta J2. G. paulista and G. sanctus DeLeon, 1967 are the most hypotrichous species in this subfamily, with 16 pairs of dorsal setae (setal pattern 11D:5B/JV­4;ZV­3).

Species of Galendromimus . have been found on cultivated and wild low growing plants, vines and trees. They seem to be relatively rare. Nothing is known about the biology of those species.

A key is subsequently provided to help the separation of the species of Galendromimus known to date. G. paulista does not conform to either of the subgenera or species groups defined by Chant & McMurtry (1994); therefore, the proposed key omits those taxonomic groupings.

Figures

FIGURE 1. Galendromimus multipoculi, sp. nov.: A – Female dorsal shield; B – Female ventral shields; C – Female chelicera; D – Spermatheca; E – Male ventrianal shield; F – Spermatodactyl.