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Revista de la Sociedad Entomológica Argentina

versión impresa ISSN 0373-5680

Rev. Soc. Entomol. Argent. vol.73 no.1-2 La Plata jun. 2014



First record of Typhlodromus (Anthoseius) transvaalensis (Acari: Phytoseiidae) from Argentina

Primer registro de Typhlodromus (Anthoseius) transvaalensis (Acari: Phytoseiidae) de la Argentina


Cédola, Claudia1 & Jorge Castresana2

1Centro de Estudios Parasitológicos y de Vectores (CEPAVE), CCT CONICET La Plata, Facultad de Ciencias Naturales y Museo, UNLP. Bulevard 120 s/n entre 61 y 62 s/n La Plata Argentina. E-mail:
2Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Concordia, Ruta Provincial 22 (3200), Concordia Entre Ríos, Argentina. E-mail:

Recibido: 27-IX-2013;
Aceptado: 03-II-2014


ABSTRACT. We report for the first time from Argentina Typhlodromus (Anthoseius) transvaalensis Nesbitt from Capsicum annuum L. and Lycopersicum esculentum L. (Solanaceae) in Concordia, Entre Ríos. Morphometric parameters of Argentine specimens are provided.

KEY WORDS: Phytoseiid mites; Typhlodromus; Horticultural crops; Solanaceae.

RESUMEN. Se cita por primera vez de la Argentina a Typhlodromus (Anthoseius) transvaalensis Nesbitt (Acari: Phytoseiidae) sobre Capsicum annuum L. y Lycopersicum esculentum L. (Solanaceae) en la localidad de Concordia, Entre Ríos. Se proporcionan datos morfométricos de los ejemplares argentinos.

PALABRAS CLAVE: Ácaros fitoseidos; Typhlodromus; Cultivos hortícolas; Solanaceae.


The family Phytoseiidae Berlese (Acari: Mesostigmata) includes the most frequent predatory mites found on plants. Most of them are predaceous; some species are effective biocontrol agents in greenhouses or open field. They are used to control spider mites, thrips, whiteflies and other pests in several parts of the world (Helle & Sabelis, 1985; Zhang, 2003; Gerson & Weintraub, 2007).

The family Phytoseiidae has three subfamilies: Amblyseiinae, Phytoseiinae and Typhlodromiinae. In the latter, the subgenus Typhlodromus (Anthoseius) De Leon, comprising 322 species, is one of the largest within the family (Moraes, et al., 2004; Rahmani et al., 2010; Jafari et al., 2011). Guanilo et al. (2008) give important taxonomic information of phytoseiids mites in northern Argentina, providing a key for their identification and reporting the species that belong to Amblyseiinae and Phytoseiinae. In this work, Typhlodromus (Anthoseius) transvaalensisis is cited for the first time from Argentina. We also present morphometric parameters in order to characterize Argentine specimens. Mites were collected on Capsicum annuum L. and Lycopersicum esculentum Mill. (Solanaceae), preserved in alcohol 70% and then mounted in Hoyer´s medium for identification. The classification system used in this paper is that of Chant & McMurtry (1994, 2007). The system of nomenclature follows Rowell et al. (1978) for dorsal idiosomal setae and Chant &Yoshida-Shaul (1991) for ventral idiosomal setae. All measurements are given in micrometres (µm). Setal form is designated sensu Muma & Denmark (1970). Each measurement corresponds to the average for the number of individuals, followed (in parentheses) by the respective ranges.

Typhlodromus (Anthoseius) transvaalensis (Nesbitt 1951)

Female. (3 specimens measured)

Dorsum (Fig.1). Dorsal shield reticulate; 376 (360-392) long and 237 (240-235) wide at level of s4, j1 26 (24-29), j3 41 (40-43), j4 32, j5 33(31-35), j6 35 (32-38), J2 48, J5 8 (7-10), z2 23 (22-24), z3 42 (41-43), z4 45 (43-47), z5 28 (27-29), Z4 60 (58-62), Z5 64 (62-67), s4 48 (48-49), s6 52(51-53), S2 60 (60-61), S4 60 (58-62), S5 9 (9-10), r3 34 (33-35), R1 45 (44-46); j4, j5, j6, z2 and z5 plumose with blunt tip, J5-S5 smooth and the rest of setae plumose and knobbed (Fig.5).

Figs. 1-5. 1, dorsal view with setal pattern; 2, ventral plates and peritreme; 3, chelicera; 4, spermatheca; 5, detail of plumose and knobbed setae.

Peritreme. Extending near coxa I. (Fig. 2)

Venter (Fig. 2). Sternal shield smooth, with two pairs of setae and posterior margin V-shaped, the third pair of setae on interscutal membrane and the fourth pair of setae on oval metasternal shields. Distance between st1-st3 81 (80-85) and st2-st2 70 (63-82). Genital shield smooth, distance between st5-st5 81 (81-82). Ventrianal shield pentagonal, with anterior margin slightly convex and lateral margins slightly concave between JV2-JV4, JV3 absent; 135 long (130-141) and 79 (77-81) wide at level of ZV2 with three pairs of preanal setae and gv2 pore. Three pairs of setae, and a plumose and knobbed JV5. Two pairs of metapodal shields.

Chelicera (Fig. 3): fixed digit 32 (32-33) long with two sub-apical teeth, mobile digit 30.
Spermatheca (Fig. 4) slightly sclerotized, calix horn like, atrium, duct minor and major difficult to see.

Legs: on leg IV three knobbed macrosetae on genu 26 (25-27), tibia 33 and tarsus 42 (41-42).
Male: not found.
Junior synonyms: Typhlodromus (Anthoseius) jackmickleyi De Leon, 1958: 75 and Typhlodromus (Anthoseius) pectinatus Athias-Henriot,1960: 65; Chant et al., 1974: 1265 Denmark & Muma, 1973: 269; Muma & Denmark, 1970: 141.

Other names: Kampimodromus transvaalensis Nesbitt, 1951: 55 —original designation, Typhlodromus (Typhlodromus) transvaalensis: Chant, 1957: 528; Neoseiulus transvaalensis: Muma, 1961: 295; Typhlodromus (Neoseiulus) transvaalensis: Pritchard & Baker, 1962: 218; Mumaseius transvaalensis: Abbasova, 1970: 1412; Anthoseius (Anthoseius) transvaalensis: Wainstein & Vartapetov, 1973: 103; Clavidromus pectinatus: Muma, 1961: 296.

Material Examined. ARGENTINA. Entre Ríos:
Concordia, 26-10-2012, Castresana col., 2 females on Capsicum annum L. (Solanaceae); Chajarí, 22-02-2013, Castresana col., 1 female (MLP) on Lycopersicum esculentum (Solanaceae).

Hernandes et al. (2011) published a biogeographical analysis of the sub-genus Typhlodromus (Anthoseius) De Leon and found that T. (A.) transvaalensis has a worldwide distribution. Amitai & Swirski (1978) found this species in many habitats including stored products, this fact could explain its wide distribution. Measurements of dorsal shield of Argentine specimens are 5% longer and 30% wider than those provided by Schicha (1981), while ventrianal shield is 6% narrower and 21% longer. With this record 48 species of phytoseiids mites are reported from Argentina.


We thank Mrs. María Cristina Estivariz for performing drawings; L. Giambelluca and Julia Roux for technical support; and two anonymous reviewers.


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