# First report of the Tuckerellidae mite Tuckerella elegans Rossi de Simons from Brazil

Iury S Castro, Adria O de Avezedo, Naiara N Vinhas, Elizeu B Castro, Noeli J Ferla

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Iury S Castro, Adria O de Avezedo, Naiara N Vinhas, Elizeu B Castro, Noeli J Ferla. First report of the Tuckerellidae mite Tuckerella elegans Rossi de Simons from Brazil. Acarologia, 2025, 65 (2), pp.265-269. 10.24349/wpct-f8iy. hal-05026716

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# First report of the *Tuckerellidae mite*
*Tuckerella elegans* Rossi de Simons from
Brazil

Iury S. Castro IDª, Adria O. De Avezedo IDª, Naiara N. Vinhas IDª, Elizeu B. Castro IDᵇ, Noeli J. Ferla IDª, c

## Short note

### ABSTRACT

The family Tuckerellidae (Prostigmata: Tetranychoidea) includes 32 known species worldwide, with three of them reported in Brazil. Studies of the mite fauna associated with the native vegetation of the Pampa biome have revealed a great diversity of mites, including the discovery of new species and new records to Brazil. In this study, the species *Tuckerella elegans* is recorded for the first time in Brazil, from the Pampa biome, state of Rio Grande do Sul. Female and larva were collected on *Baccharis articulata* (Lam.) Pers. (Asteraceae). Additionally, a key to the species of Tuckerellidae recorded in the country is provided.

**Keywords** Asteraceae; *Baccharis articulata*; Pampa biome; peacock mites; physiographic regions; Tetranychoidea

The Tuckerellidae (Prostigmata: Tetranychoidea), commonly referred to as peacock mites, are exclusively represented by the genus *Tuckerella* Womersley (Krantz and Walter 2009). The mites of this family are ornamented with oval and circular white membranous setae and with four to seven pairs of long caudal setae in the pygidial region, which facilitates the recognition of the specimens. They can be seen with the naked eye due to their orange or reddish color (Meyer and Ueckermann 1997). To date, 32 species are known worldwide, all of which are strictly phytophagous (Walter *et al.* 2009; Khadem and Asadi 2017; Escobar-Garcia *et al.* 2022). Mites of the genus *Tuckerella* feed mainly on the stems, fruits, and sprouts of host plants, which can cause necrosis and deformations, compromising the initial development of plants (Prasad 1973; Vacante 2016; Escobar-Garcia *et al.* 2021).

In Brazil, three species are recorded: *Tuckerella ornata* Tucker, *T. knorri* Baker & Tuttle, and *T. pavoniformis* Ewing (Flechtmann 1979; Mineiro *et al.* 2005; Brito *et al.* 2023; Boeger and Valim 2024). *Tuckerella ornata* was collected from branches of *Theobroma cacao* L. (Malvaceae) in the city of Belém, Pará state (Flechtmann 1979). Subsequently, this species was collected from *Euterpe oleracea* Mart. (Arecaceae) and observed causing damage to *T. cacao* fruits, along with a new record of *T. knorri* in the localities of Augusto Corrêa and Bragança, Pará (Brito *et al.* 2023, 2024). Additionally, *Tuckerella ornata* was recorded from branches of *Malpighia emarginata* A. DC. (Malpighiaceae) in the city of Recife, Pernambuco (Barbosa *et al.* 2003). In São Paulo state, *T. ornata* and *T. knorri* were observed on *Couroupita guianensis* Aubl. (Lecythidaceae) (Escobar-Garcia *et al.* 2024), while *Tuckerella pavoniformis* was reported on *Litchi chinensis* Sonn (Sapindaceae) (Mineiro *et al.* 2005).

The Pampa biome is located in the southern region of Brazil and covers around 60% of the area of the state of Rio Grande do Sul, also extending to Argentina and Uruguay (Echer *et al.* 2015). The distinct ecosystems that make up this biome are known as physiographic regions,

Received 08 August 2024
Accepted 25 March 2025
Published 01 April 2025

Corresponding author
Iury S. Castro ID:
iury.castro@universo.univates.br

Academic editor
Navia, Denise

https://doi.org/10.24349/wpct-f8iy

ISSN 0044-586X (print)
ISSN 2107-7207 (electronic)

<figure><img src="image_2.png" /></figure>

Castro I. S. et al.

Licensed under
Creative Commons CC-BY 4.0

<footnote>ª Laboratory of Acarology, Tecnovates, University of Vale do Taquari - Univates, Lajeado, 95914-014, Rio Grande do Sul, Brazil.</footnote>

<footnote>ᵇSão Paulo State University (UNESP), Institute of Biosciences, Rio Claro, 13506-900, SP, Brazil.</footnote>

<footnote>ᶜ CNPq Researcher.</footnote>
with great richness of fauna, fungi, and flora and a predominance of low vegetation and shrubs (Hasenack *et al.* 2010). Studies regarding the mite fauna associated with the native vegetation of the Pampa biome have revealed a great diversity of mites, including the discovery of new species and new records for the country (Toldi *et al.* 2021a, 2021b).

A general investigation for mites was conducted in August 2022 in the Pampa biome, in the physiographic region Field of Shallow Soil (30°48'24.50"S 055°36'54.86"W), located in the municipality of Sant'Ana do Livramento, in the state of Rio Grande do Sul.

All mites found were mounted on microscope slides with Hoyer's medium (Jeppson *et al.* 1975). The identification of the specimens was carried out with the aid of an optical microscope with phase contrast - Zeiss Axio imager.Z2 and dichotomous keys. The slides of the specimens studied are deposited in the reference collection of the Museum of Natural Sciences (ZAUMCN), University of Vale do Taquari-Univates, Lajeado, state of Rio Grande do Sul, Brazil.

Two specimens of Tuckerellidae (a female and a larva) were collected in crevices on the stem of *Baccharis articulata* (Lam.) Pers. (Asteraceae) and identified using identification keys (e.g. Rossi de Simons 1972; Ehara 1975; McDaniel *et al.* 1975; Quirós-Gonzalez and Baker 1984; Baker and Suigong 1988; Ochoa 1989; Meyer and Ueckermann 1997). Mites were identified as *Tuckerella elegans* Rossi de Simons.

This record represents the first occurrence of this species in Brazil. The presence of *T. elegans* on *B. articulata* may be accidental, as only two individuals were found. In the original description, *T. elegans* was described based on specimens collected in Buenos Aires, Argentina (Rossi de Simons 1972), while the municipality of Sant'Ana do Livramento, in Rio Grande do Sul, Brazil, where the species was also recorded, is more than 1000 km away from the Argentine capital. In the initial description, *T. elegans* was associated with *Pittosporum* sp. (Pittosporaceae), *Thuja* sp. (Cupressaceae), and *Citrus* sp. (Rutaceae) (Rossi de Simons 1972). Subsequently, *T. elegans* was recorded on leaves of *Datura arborea* L. (Solanaceae) in San Pedro, Costa Rica (Ochoa 1989). Recently, the species was detected in Chile, affecting the export of pomegranates and citrus fruits to the United States (Larral *et al.* 2021). To date, there are no reports of damage caused by this species to its hosts. Given this, further research is needed to understand the extent of the species' range and its host spectrum in southern Brazil.

## Diagnostic characters of female

Due to the presence of seven pairs of flagellated setae equal in length (*h2*, *h3*, *h4*, *h5*, *h6*, *h7*, *h8*) and a pair of short, enlarged oval setae (*h1*) in the pygidial region, *T. elegans* resembles five other species: *T. coleogynis* (Jorgensen, 1967); *T. eloisae* (Servin & Otero, 1989); *T. hipoterra* (McDaniel & Morihara, 1975); *T. spechtae* (Womersley, 1957); and *T. weiterschani* (Sidorchuk & Khaustov, 2018). However, *T. elegans* can be easily separated from these species by having larger posterior-external opisthosomal setae (*f2*) than the posterior-internal setae (*f1*); the podosoma is uniformly and strongly areolated in the dorsocentral and dorsomedial regions; and the opisthosoma has finely rounded and irregular lines (Figure 1).

## Key to species of Tuckerellidae recorded in Brazil, based on dichotomous key provided by Ochoa (1989) and Escobar-Garcia *et al.* (2022)

1. Five pairs of flagellate setae along posterior margin of body......... *T. ornata* (Tucker 1926)
   — Six or seven pairs of flagellate setae along posterior margin of body.................... 2

2. Seven pairs of flagellate setae along posterior margin of body. *T. elegans* (Rossi de Simons 1972)
<figure><img src="image_3.png" /><figcaption>**Figure 1.** *Tuckerella elegans*. A – View dorsal shield (larva), B – Ventral view of the genital region (larva), C – View of the dorsal shield (adult female), D – Dorsal view pygidial region of opisthosoma (adult female).</figcaption></figure>

— Six pairs of flagellate setae along posterior margin of body .................................... 3

3. Setae *f2* on posterior dorsal opisthosoma larger than setae *f1*; setae *f2* inserted anterior to setae *f1* .................................................................... *T. pavoniformis* (Ewing 1922)

— Setae *f1* and *f2* the same length, and inserted in a transverse row .................................... *T. knorri* (Baker and Tuttle 1975)
## Acknowledgments

Thanks are to the entire team at the Acarology Laboratory at Univates - Labacari, Brazil. We also thank the National Council for Scientific and Technological Development (CNPq) and the Rio Grande do Sul State Research Support Foundation (FAPERGS) for granting the Protax Master's Scholarship (Process nº 441594/2020-4) to the first author of this work. To the University of Vale do Taquari (Univates), Brazil, for the project development structure. This work was supported by the "Fundação de Amparo à Pesquisa do Estado de São Paulo" (FAPESP) (Procs. 2021/06373-0 and 2024/00175-0) by fellowship to the fourth author.

## ORCID

Iury S. Castro ID https://orcid.org/0000-0001-8871-9543

Adria O. De Avezedo ID https://orcid.org/0000-0002-7290-7053

Naiara N. Vinhas ID https://orcid.org/0000-0001-9043-7721

Elizeu B. Castro ID https://orcid.org/0000-0002-8056-6893

Noeli J. Ferla ID https://orcid.org/0000-0003-0771-6864

## References

Barbosa, D.G., Gondim Jr, M.G., Barros, R., Oliveira, J.V. 2003. Diversidade de ácaros em aceroleira (Malpighia emarginata A. DC.) na Universidade Federal Rural de Pernambuco em Recife, PE. Neotropical Entomology, 32: 577-583.

Baker, E.W., Suigong, Y. 1988. A catalog of the false spider mites (Tenuipalpidae: Acari) of the United States. Int. J. Acarol., 14(3): 143-155. https://doi.org/10.1080/01

Boeger, W., Valim, M.P. 2024. Brazilian Zoology Group 2023 (1.3) [Access data: 21/05/2024]. Zenodo. https://doi.org/10.5281/zenodo.10989239.

Brito, E.A.S., Castro, I.S., Vinhas, N.A.N., Santana, R.D.R., Pinheiro, G.M., Ferla, N.J. 2023. Damage caused by *Tuckerella ornata* (Acari: Tuckerellidae) on cocoa fruits (*Theobroma cacao*) in the Amazon region, state of Pará, Brazil. Syst. Appl. Acarol., 28(1): 11-19. https://doi.org/10.11158/saa.28.1.2

Brito, E.A.S., Castro, I.S., Noronha, A.S.C., Ferla, N.J. 2024. Mites associated with açaí palm trees (*Euterpe oleracea*: Arecaceae) in native and cultivated areas of the state of Pará (Eastern Amazon, Brazil). Exp. Appl. Acarol., 93(1): 229-252. https://doi.org/10.1007/s10493-024-00925-4

Ehara, S. 1975. Description of a new species of *Tuckerella* from Japan (Acarina: Tuckerellidae). Int. J. Acarol., 1(2): 15. https://doi.org/10.1080/01647957508683741

Escobar-Garcia, H.A., Andrade, D.J., Beard, J.J., Ochoa, R. 2021. Peacock mites on cocoa in Peru (Acari: Tuckerellidae: *Tuckerella*): Their economic importance and a key to species. Syst. Appl. Acarol., 26(3): 519-528.

Escobar-Garcia, H.A., Beard, J.J., Ochoa, R. 2022. Report of *Tuckerella pavoniformis* (Acari: Tuckerellidae) on mamey, *Mammea americana* (Calophyllaceae), in northwestern Peru. Insects, 13(5): 473. https://doi.org/10.3390/insects13050473

Escobar-Garcia, H. A., de Andrade, D. J., Beard, J. J., & Ochoa, R. (2024). Peacock mites on cannon-ball tree, *Couroupita guianensis* (Lecythidaceae) in the Southeast Region of Brazil. Acarol., 64(4), 1138-1148. https://doi.org/10.24349/a2ld-gvdp

Flechtmann, C.H. 1979. *Tuckerella ornata* (Tucker), A mite new for Brazil and other tetranychoidea (Acari) from the state of Pará. Anais da Escola Superior de Agricultura Luiz de Queiroz, 3: 615-620. https://doi.org/10.1590/S0071-12761979000100033

Hamid, K.S., Asadi, M. 2017. A new species of the genus *Tuckerella* (Acari: Trombidiformes: Tuckerellidae) from Iran. Acarologia, 58(1): 15-30. https://doi.org/10.24349/acarologia/20184224

Jorgensen, C.D. 1967. A new species of *Tuckerella* (Acarina: Tuckerellidae) from Nevada. Ent. News, 78(6): 141-146.

Krantz, G.W., Walter, D.E. 2009. A manual of acarology. 3rd edition. Lubbock (TX): Texas Tech University Press.

Larral, P.D., Ripa, R.S., Luppichini, B., Kato, N.L. 2021. Tuckerellidae, ácaro pavo real en chile. Rev. de Citricultura (Eureka), 2(2): 1-11.

McDaniel, B., Morihara, D.K., Lewis, J.K. 1975. A new species of *Tuckerella* from South Dakota and a key with illustrations of all known described species. Acarologia, 17(2): 274-283.

Meyer, M.K.S., Ueckermann, E.A. 1997. A review of some species of the families Allochaetophoridae, Linotetranidae and Tuckerellidae (Acari: Tetranychoidea). Int. J. Acarol., 23(2): 67-92. https://doi.org/10.1080/01647959708683103

Mineiro, J.D.C., Lofego, A.C., Raga, A., Moraes, G.J. 2005. First report of mites *Amblyseiella setosa* Muma (Phytoseiidae) and *Tuckerella pavoniformis* (Ewing) (Tuckerellidae) in Brazil. Arquivos do Instituto Biológico, 72: 395-396. https://doi.org/10.1590/1808-1657v72p3952005

Ochoa, R. 1989. The genus *Tuckerella* in Costa Rica (Acari: Tuckerellidae). Int. J. Acarol., 15(4): 205-207. https://doi.org/10.1080/01647958908683850
Prasad, V. 1973. A new species of *Tuckerella* (Acarina: Tuckerellidae) from India. *Acarologia*, 15: 237-239.

Quiros-Gonzalez, M.J., Baker, E.W. 1984. Idiosomal and leg chaetotaxy in the Tuckerellidae Baker & Pritchard; ontogeny and nomenclature. In: Griffiths, D.A., Bowman, C.E., (eds.) *Systematics and taxonomy of Acari*, Acarology, Vol. 1. Ellis Horwood Ltd., Chichester, UK, 166-173.

Rossi de Simons, N.H. 1972. Una nueva especie de Tuckerellidae, *Tuckerella elegans* sp.n. (Acari, Tetranychoidea) de la República Argentina. Rev. Invest. Agropec. Ser. 5, Pat. Veget. 9(1): 15-22.

Servín, R., Otero, G. 1989. Una nueva especie de *Tuckerella* de Baja California Sur, Mexico. *Southwestern Entomologist*, 14(3): 205-212.

Sidorchuk, E., Khaustov, A.A. 2018. Two Eocene species of peacock mites (Acari: Tetranychoidea: Tuckerellidae). *Acarologia*, 58(1): 99-105. https://doi.org/10.24349/acarologia/20184228

Toldi, M., Freitas, E.M., Da Silva, V.L., Caumo, M., Ferla, J.J., Orlandi, C.R., Ferla, N.J 2021a. Communities of predatory mites (Phytoseiidae and Stigmaeidae) in different environments of the Brazilian Pampa. *Acarologia*, 61(1): 20-30. https://doi.org/10.24349/acarologia/20214413

Toldi, M., Bizarro, G.L., Da-Costa, T., Da Silva, V.L., Ferla, J.J., Johann, L., Ferla, N.J. 2021b. Mite fauna associated with different environments in the Southern Pampa, Brazil. Int. J. Acarol., 47(5): 387-395. https://doi.org/10.1080/01647954.2021.1915378

Vacante, V. 2016. The family Tuckerellidae Baker & Pritchard. In *The handbook of mites of economic plants: identification, bio-ecology and control* (pp. 421-425). Wallingford UK: CABI. https://doi.org/10.1079/9781845939946.0001

Walter, D.E., Lindquist, E.E., Smith, I.M., Cook, D.R., Krantz, G.W. 2009. Order Trombidiformes. In: Krantz, G.W., Walter, D.E., (eds) *A Manual of Acarology*. Texas Tech University Press, Lubbock, Texas, pp. 233-420.

Womersley, H. 1957. A new species of *Tuckerella* (Acarina, Tetranychoidea, Tuckerellidae) from South Australia. *Tran. R. Soc. S. Aust.*, 80: 73-75.