Papers by Matheus S Rocha
Denheyernaxoides americanus sp.nov. is described and illustrated from lichens and moss associated... more Denheyernaxoides americanus sp.nov. is described and illustrated from lichens and moss associated with bark of Ilex paraguariensis A. St. Hil. (Aquifoliaceae) in yerba-mate agroecosystem at Putinga municipality, Rio Grande do Sul State, Brazil. This is the first species of this genus found in Americas. New records of cunaxids Neobonzia moraesi (Den Heyer & Castro, 2008), Neocunaxoides andrei (Baker & Hoffmann, 1948) and Pulaeus pectinatus (Ewing, 1909) from Rio Grande do Sul State are also provided. A key to world Denheyernaxoides species is included.
Zootaxa, 2013
Scutopalus tomentosus sp. nov. is described and illustrated from Plantago tomentosa Lam. (Plantag... more Scutopalus tomentosus sp. nov. is described and illustrated from Plantago tomentosa Lam. (Plantaginaceae) in a vineyard agroecosystem at Dois Lajeados county, State of Rio Grande do Sul, Brazil. This is the first species of this genus described from the Americas. A key to world species is included.
International Journal of Acarology, 2013
ABSTRACT A new species of stigmaeid mite (Acari: Stigmaeidae) Agistemus paraguariensis sp. nov. i... more ABSTRACT A new species of stigmaeid mite (Acari: Stigmaeidae) Agistemus paraguariensis sp. nov. is described and illustrated from the State of Rio Grande do Sul, Brazil, based on specimens collected on yerba mate (Ilex paraguariensis A. St.-Hil.) (Aquifoliaceae). A key to Brazilian species of the genus is provided.
International Journal of Acarology, 2013
Cheletomimus (Hemicheyletia) gracilis Fain, Bochkov and Corpuz-Raros (2002) was collected on stra... more Cheletomimus (Hemicheyletia) gracilis Fain, Bochkov and Corpuz-Raros (2002) was collected on strawberry plants (Fragaria X ananassa Duchesne: Rosaceae) in greenhouse, for the first time in the state of Rio Grande do Sul, Brazil. Cheletomimus (H.) wellsi (Baker) and Cheletomimus (H.) duosetosus Muma are also reported.
Cheletomimus (Hemicheyletia) gracilis Fain, Bochkov and Corpuz-Raros (2002) was collected on stra... more Cheletomimus (Hemicheyletia) gracilis Fain, Bochkov and Corpuz-Raros (2002) was collected on strawberry plants (Fragaria
X ananassa Duchesne: Rosaceae) in greenhouse, for the first time in the state of Rio Grande do Sul, Brazil. Cheletomimus
(H.) wellsi (Baker) and Cheletomimus (H.) duosetosus Muma are also reported.
Phytoseius litoralis n. sp., a member of the horridus species group, is described from the State ... more Phytoseius litoralis n. sp., a member of the horridus species group, is described from the State of Rio Grande do Sul, in
southern Brazil, based on specimens collected on Psidium guajava, Solanum concinnum and Cecropia pachystachya. This
is the first species of the horridus group described from Brazil. A key to species of Phytoseius reported from Brazil is
provided.
We report on the Tydeidae and Triophtydeidae associated with grapevine (Vitis labrusca L. and Vit... more We report on the Tydeidae and Triophtydeidae associated with grapevine (Vitis labrusca L. and Vitis vinifera L.) in Rio
Grande do Sul State, Brazil, and describe a new species of Prelorryia, Prelorryia labrusca sp. nov., and two new species
of Tydeus, Tydeus manoi sp. nov. and Tydeus riopardensis sp. nov. Brachytydeus formosa (Cooreman), B. podocarpa
(Baker), Neolorryia pandana (Baker), Tydeus californicus (Banks), Pretydeus henriandrei Kaźmierski and Triophtydeus
lebruni (André) are recorded and illustrated. A key to species of Tydeidae and Triophtydeidae from Brazil is provided.
Brachytydeus scutatus sp. nov., a new species of tydeid mite from the Rio Grande do Sul State, Br... more Brachytydeus scutatus sp. nov., a new species of tydeid mite from the Rio Grande do Sul State, Brazil, is illustrated and
described based on specimens collected from plants growing near soybean fields. This is the first species of the genus
Brachytydeus described within the country. A key to Brachytydeus species from the Americas is provided.
Neocunaxoides promatae sp. nov., Bonzia flechtmanni sp. nov. and Dactyloscirus multiscutus sp. no... more Neocunaxoides promatae sp. nov., Bonzia flechtmanni sp. nov. and Dactyloscirus multiscutus sp. nov. are described from
soil and leaf litter in Atlantic rainforest and Atlantic Araucaria forest in natural environments in São Francisco de Paula
municipality, Rio Grande do Sul State, Brazil. In addition, the species Pulaeus quadrisolenidius Castro & Den Heyer 2009
and Lupaeus lectus Castro & Den Heyer (2009) are registered for the first time in this State.
This work aims to evaluate the phytoseiid fauna in natural environments of the coastal plain of t... more This work aims to evaluate the phytoseiid fauna in natural environments of the coastal plain of the northern coast of the
Rio Grande do Sul State, Brazil. The plants were sampled from locations within the counties of Tramandaí and Osório
during the last month of each season. Three locations were chosen in the Tramandaí area: (A1) – sand dunes; (A2) –
mangrove and (A3) – forest plantation; and one in Osório: (A4) – hill with dense rainforest. A total of 561 specimens
belonging to 29 species were collected. The preserved areas presented higher richness, given that the A4 area stood out
as the richest, with 18 species, and A1 presented the lowest richness, with four species. The most abundant genus was
Amblyseius, with five species, followed by Neoseiulus and Iphiseiodes, with three species. A redescription of Typhlodromus (Anthoseius) ornatus and a key for the species in this paper are provided.
A new species of phytoseiid mites (Acari: Phytoseiidae) Transeius gervasioi sp. nov. is described... more A new species of phytoseiid mites (Acari: Phytoseiidae) Transeius gervasioi sp. nov. is described from the State of Rio Grande
do Sul, Brazil, based on specimens collected on Cichorium intybus L. (Asteraceae) and Plantago sp. (Plantaginaceae) plants.
A key to Brazilian species of the genus is provided.
Scutopalus tomentosus sp. nov. is described and illustrated from Plantago tomentosa Lam. (Plantag... more Scutopalus tomentosus sp. nov. is described and illustrated from Plantago tomentosa Lam. (Plantaginaceae) in a vineyard agroecosystem at Dois Lajeados county, State of Rio Grande do Sul, Brazil. This is the first species of this genus described from the Americas. A key to world species is included.
Neoseiulus HUGHES, 1948 is currently one of the largest genus of Phytoseiidae Berlese. Neoseiulus... more Neoseiulus HUGHES, 1948 is currently one of the largest genus of Phytoseiidae Berlese. Neoseiulus demitei sp.
nov., a new species of phytoseiid mite from Rio Grande do Sul State, Brazil, is illustrated and described based on
specimens collected on Tibouchina sp. (Melastomataceae) plants. This new species differs from others by having most
of propodossomal setae reaching the base of nearby setae and a constriction of ventrianal shield at level of preanal
pores. Nevertheless, this new species is the first of the species subgroup kennetti described from Brazil. A key of Neoseiulus
species reported in Brazil is also included.
Soybeans (Glycine max (L.) Merril) (Fabaceae) are the most important grain crop in Rio Grande do ... more Soybeans (Glycine max (L.) Merril) (Fabaceae) are the most important grain crop in Rio Grande do Sul State,
Brazil. Recently,significant infestations of phytophagous mites were observed in different regions of this state.
This research aimed to identify the mite fauna associated with the soybean crop grown in the northwestern
region of Rio Grande do Sul, particularly in Três de Maio and Mato Queimado counties. Assessments were
made fortnightly in transgenic soybeans with irrigation (L1A) and without irrigation (L2A and B), in
conventional soybeans without irrigation (L3C and D), and in edge plants (L1, 2 and 3). In soybean plants, we
found 18,100 mites belonging to five families, nine genera and 12 species, besides those of Oribatida. Area L1A
showed higher richness and abundance, with 10 species, followed by area L2B with insecticide application, with
nine species. Lower richness was observed in L2A, with five species, and L3D showed lower abundance.
Phytoseiidae showed higher richness, with five species, followed by Tetranychidae, with four species.
Tetranychus urticae Koch, Mononychellus planki McGregor and Tetranychus ludeni Zacher were the most
common phytophagous mites on soybean plants. Neoseiulus idaeus Denmark & Muma, Pseudopronematus sp.,
N. californicus McGregor and N. anonymus Chant & Baker. N. idaeus were the most common predators. On
edge plants, T. ludeni and T. urticae were the most abundant, while N. idaeus and Agistemus riograndensis
Johann & Ferla stood out among the predatory mites.
A new species of stigmaeid mite (Acari: Stigmaeidae) Agistemus paraguariensis sp. nov. is describ... more A new species of stigmaeid mite (Acari: Stigmaeidae) Agistemus paraguariensis sp. nov. is described and illustrated from
the State of Rio Grande do Sul, Brazil, based on specimens collected on yerba mate (Ilex paraguariensis A. St.-Hil.)
(Aquifoliaceae). A key to Brazilian species of the genus is provided.
This survey had the aim to identify the mite fauna and mite ecologic interaction in rice culture,... more This survey had the aim to identify the mite fauna and mite ecologic interaction in rice culture, harvest 2010-2011, in
Taquari and Cachoeirinha Counties, state of Rio Grande do Sul, Brazil. The mite population was biweekly evaluated on IRGA 424
and INTA PUITÁ CL cultivars in four areas where randomly sampled 20 plants/area. Fluctuation, ecologic indices and correlation
between species and environmental factors were calculated. A total of 1,626 mites belonging to 14 species from 12 families were
collected. Of the total specimens collected, 34.56% was on IRGA 424, in Taquari, 32.47% on IRGA 424-120 and 28.35% on IRGA
424-60, in Cachoeirinha and 4.61% on INTA PUITÁ CL, in Taquari. Family Ascidae showed great richness, with four species,
Lasioseius sp., Lasioseius sp., Proctolaelaps sp. and Cheiroseius sp.. Schizotetranychus oryzae Rossi de Simons (86.65%) was the
phytophagous mite more abundant, while among the predators Neoseiulus paraibensis (Moraes and McMurtry) (6.88%) stood out.
The population peaks of S. oryzae and N. paraibensis happened on March 2011. In all evaluated areas, the correlation between S.
oryzae and N. paraibensis was positive, specially on IRGA 424-120 (r = 0.93, P = 0.006).
A new genus, Ingaseius nov. gen., and a new species, Ingaseius silvaticus nov. sp., Phytoseiidae,... more A new genus, Ingaseius nov. gen., and a new species, Ingaseius silvaticus nov. sp., Phytoseiidae, collected from Inga edulis Martius and Inga marginata Wild. (Fabaceae) are described from the Brazilian Atlantic Forest. This species is unique
in the following characteristics: females and males with few teeth on fixed cheliceral digit and short Jv5, without J2, Z1
and leg macrosetae. In addition, females lack Jv3 and Zv3, and have a reduced ventrianal shield.
Rubroscirus nidorum sp. nov. is described and illustrated from chicken nests in a poultry house a... more Rubroscirus nidorum sp. nov. is described and illustrated from chicken nests in a poultry house at Teutônia
county, State of Rio Grande do Sul, Brazil. This is the first species of this family described from this State and
the second of Rubroscirus for Brazil.
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Papers by Matheus S Rocha
X ananassa Duchesne: Rosaceae) in greenhouse, for the first time in the state of Rio Grande do Sul, Brazil. Cheletomimus
(H.) wellsi (Baker) and Cheletomimus (H.) duosetosus Muma are also reported.
southern Brazil, based on specimens collected on Psidium guajava, Solanum concinnum and Cecropia pachystachya. This
is the first species of the horridus group described from Brazil. A key to species of Phytoseius reported from Brazil is
provided.
Grande do Sul State, Brazil, and describe a new species of Prelorryia, Prelorryia labrusca sp. nov., and two new species
of Tydeus, Tydeus manoi sp. nov. and Tydeus riopardensis sp. nov. Brachytydeus formosa (Cooreman), B. podocarpa
(Baker), Neolorryia pandana (Baker), Tydeus californicus (Banks), Pretydeus henriandrei Kaźmierski and Triophtydeus
lebruni (André) are recorded and illustrated. A key to species of Tydeidae and Triophtydeidae from Brazil is provided.
described based on specimens collected from plants growing near soybean fields. This is the first species of the genus
Brachytydeus described within the country. A key to Brachytydeus species from the Americas is provided.
soil and leaf litter in Atlantic rainforest and Atlantic Araucaria forest in natural environments in São Francisco de Paula
municipality, Rio Grande do Sul State, Brazil. In addition, the species Pulaeus quadrisolenidius Castro & Den Heyer 2009
and Lupaeus lectus Castro & Den Heyer (2009) are registered for the first time in this State.
Rio Grande do Sul State, Brazil. The plants were sampled from locations within the counties of Tramandaí and Osório
during the last month of each season. Three locations were chosen in the Tramandaí area: (A1) – sand dunes; (A2) –
mangrove and (A3) – forest plantation; and one in Osório: (A4) – hill with dense rainforest. A total of 561 specimens
belonging to 29 species were collected. The preserved areas presented higher richness, given that the A4 area stood out
as the richest, with 18 species, and A1 presented the lowest richness, with four species. The most abundant genus was
Amblyseius, with five species, followed by Neoseiulus and Iphiseiodes, with three species. A redescription of Typhlodromus (Anthoseius) ornatus and a key for the species in this paper are provided.
do Sul, Brazil, based on specimens collected on Cichorium intybus L. (Asteraceae) and Plantago sp. (Plantaginaceae) plants.
A key to Brazilian species of the genus is provided.
nov., a new species of phytoseiid mite from Rio Grande do Sul State, Brazil, is illustrated and described based on
specimens collected on Tibouchina sp. (Melastomataceae) plants. This new species differs from others by having most
of propodossomal setae reaching the base of nearby setae and a constriction of ventrianal shield at level of preanal
pores. Nevertheless, this new species is the first of the species subgroup kennetti described from Brazil. A key of Neoseiulus
species reported in Brazil is also included.
Brazil. Recently,significant infestations of phytophagous mites were observed in different regions of this state.
This research aimed to identify the mite fauna associated with the soybean crop grown in the northwestern
region of Rio Grande do Sul, particularly in Três de Maio and Mato Queimado counties. Assessments were
made fortnightly in transgenic soybeans with irrigation (L1A) and without irrigation (L2A and B), in
conventional soybeans without irrigation (L3C and D), and in edge plants (L1, 2 and 3). In soybean plants, we
found 18,100 mites belonging to five families, nine genera and 12 species, besides those of Oribatida. Area L1A
showed higher richness and abundance, with 10 species, followed by area L2B with insecticide application, with
nine species. Lower richness was observed in L2A, with five species, and L3D showed lower abundance.
Phytoseiidae showed higher richness, with five species, followed by Tetranychidae, with four species.
Tetranychus urticae Koch, Mononychellus planki McGregor and Tetranychus ludeni Zacher were the most
common phytophagous mites on soybean plants. Neoseiulus idaeus Denmark & Muma, Pseudopronematus sp.,
N. californicus McGregor and N. anonymus Chant & Baker. N. idaeus were the most common predators. On
edge plants, T. ludeni and T. urticae were the most abundant, while N. idaeus and Agistemus riograndensis
Johann & Ferla stood out among the predatory mites.
the State of Rio Grande do Sul, Brazil, based on specimens collected on yerba mate (Ilex paraguariensis A. St.-Hil.)
(Aquifoliaceae). A key to Brazilian species of the genus is provided.
Taquari and Cachoeirinha Counties, state of Rio Grande do Sul, Brazil. The mite population was biweekly evaluated on IRGA 424
and INTA PUITÁ CL cultivars in four areas where randomly sampled 20 plants/area. Fluctuation, ecologic indices and correlation
between species and environmental factors were calculated. A total of 1,626 mites belonging to 14 species from 12 families were
collected. Of the total specimens collected, 34.56% was on IRGA 424, in Taquari, 32.47% on IRGA 424-120 and 28.35% on IRGA
424-60, in Cachoeirinha and 4.61% on INTA PUITÁ CL, in Taquari. Family Ascidae showed great richness, with four species,
Lasioseius sp., Lasioseius sp., Proctolaelaps sp. and Cheiroseius sp.. Schizotetranychus oryzae Rossi de Simons (86.65%) was the
phytophagous mite more abundant, while among the predators Neoseiulus paraibensis (Moraes and McMurtry) (6.88%) stood out.
The population peaks of S. oryzae and N. paraibensis happened on March 2011. In all evaluated areas, the correlation between S.
oryzae and N. paraibensis was positive, specially on IRGA 424-120 (r = 0.93, P = 0.006).
in the following characteristics: females and males with few teeth on fixed cheliceral digit and short Jv5, without J2, Z1
and leg macrosetae. In addition, females lack Jv3 and Zv3, and have a reduced ventrianal shield.
county, State of Rio Grande do Sul, Brazil. This is the first species of this family described from this State and
the second of Rubroscirus for Brazil.
X ananassa Duchesne: Rosaceae) in greenhouse, for the first time in the state of Rio Grande do Sul, Brazil. Cheletomimus
(H.) wellsi (Baker) and Cheletomimus (H.) duosetosus Muma are also reported.
southern Brazil, based on specimens collected on Psidium guajava, Solanum concinnum and Cecropia pachystachya. This
is the first species of the horridus group described from Brazil. A key to species of Phytoseius reported from Brazil is
provided.
Grande do Sul State, Brazil, and describe a new species of Prelorryia, Prelorryia labrusca sp. nov., and two new species
of Tydeus, Tydeus manoi sp. nov. and Tydeus riopardensis sp. nov. Brachytydeus formosa (Cooreman), B. podocarpa
(Baker), Neolorryia pandana (Baker), Tydeus californicus (Banks), Pretydeus henriandrei Kaźmierski and Triophtydeus
lebruni (André) are recorded and illustrated. A key to species of Tydeidae and Triophtydeidae from Brazil is provided.
described based on specimens collected from plants growing near soybean fields. This is the first species of the genus
Brachytydeus described within the country. A key to Brachytydeus species from the Americas is provided.
soil and leaf litter in Atlantic rainforest and Atlantic Araucaria forest in natural environments in São Francisco de Paula
municipality, Rio Grande do Sul State, Brazil. In addition, the species Pulaeus quadrisolenidius Castro & Den Heyer 2009
and Lupaeus lectus Castro & Den Heyer (2009) are registered for the first time in this State.
Rio Grande do Sul State, Brazil. The plants were sampled from locations within the counties of Tramandaí and Osório
during the last month of each season. Three locations were chosen in the Tramandaí area: (A1) – sand dunes; (A2) –
mangrove and (A3) – forest plantation; and one in Osório: (A4) – hill with dense rainforest. A total of 561 specimens
belonging to 29 species were collected. The preserved areas presented higher richness, given that the A4 area stood out
as the richest, with 18 species, and A1 presented the lowest richness, with four species. The most abundant genus was
Amblyseius, with five species, followed by Neoseiulus and Iphiseiodes, with three species. A redescription of Typhlodromus (Anthoseius) ornatus and a key for the species in this paper are provided.
do Sul, Brazil, based on specimens collected on Cichorium intybus L. (Asteraceae) and Plantago sp. (Plantaginaceae) plants.
A key to Brazilian species of the genus is provided.
nov., a new species of phytoseiid mite from Rio Grande do Sul State, Brazil, is illustrated and described based on
specimens collected on Tibouchina sp. (Melastomataceae) plants. This new species differs from others by having most
of propodossomal setae reaching the base of nearby setae and a constriction of ventrianal shield at level of preanal
pores. Nevertheless, this new species is the first of the species subgroup kennetti described from Brazil. A key of Neoseiulus
species reported in Brazil is also included.
Brazil. Recently,significant infestations of phytophagous mites were observed in different regions of this state.
This research aimed to identify the mite fauna associated with the soybean crop grown in the northwestern
region of Rio Grande do Sul, particularly in Três de Maio and Mato Queimado counties. Assessments were
made fortnightly in transgenic soybeans with irrigation (L1A) and without irrigation (L2A and B), in
conventional soybeans without irrigation (L3C and D), and in edge plants (L1, 2 and 3). In soybean plants, we
found 18,100 mites belonging to five families, nine genera and 12 species, besides those of Oribatida. Area L1A
showed higher richness and abundance, with 10 species, followed by area L2B with insecticide application, with
nine species. Lower richness was observed in L2A, with five species, and L3D showed lower abundance.
Phytoseiidae showed higher richness, with five species, followed by Tetranychidae, with four species.
Tetranychus urticae Koch, Mononychellus planki McGregor and Tetranychus ludeni Zacher were the most
common phytophagous mites on soybean plants. Neoseiulus idaeus Denmark & Muma, Pseudopronematus sp.,
N. californicus McGregor and N. anonymus Chant & Baker. N. idaeus were the most common predators. On
edge plants, T. ludeni and T. urticae were the most abundant, while N. idaeus and Agistemus riograndensis
Johann & Ferla stood out among the predatory mites.
the State of Rio Grande do Sul, Brazil, based on specimens collected on yerba mate (Ilex paraguariensis A. St.-Hil.)
(Aquifoliaceae). A key to Brazilian species of the genus is provided.
Taquari and Cachoeirinha Counties, state of Rio Grande do Sul, Brazil. The mite population was biweekly evaluated on IRGA 424
and INTA PUITÁ CL cultivars in four areas where randomly sampled 20 plants/area. Fluctuation, ecologic indices and correlation
between species and environmental factors were calculated. A total of 1,626 mites belonging to 14 species from 12 families were
collected. Of the total specimens collected, 34.56% was on IRGA 424, in Taquari, 32.47% on IRGA 424-120 and 28.35% on IRGA
424-60, in Cachoeirinha and 4.61% on INTA PUITÁ CL, in Taquari. Family Ascidae showed great richness, with four species,
Lasioseius sp., Lasioseius sp., Proctolaelaps sp. and Cheiroseius sp.. Schizotetranychus oryzae Rossi de Simons (86.65%) was the
phytophagous mite more abundant, while among the predators Neoseiulus paraibensis (Moraes and McMurtry) (6.88%) stood out.
The population peaks of S. oryzae and N. paraibensis happened on March 2011. In all evaluated areas, the correlation between S.
oryzae and N. paraibensis was positive, specially on IRGA 424-120 (r = 0.93, P = 0.006).
in the following characteristics: females and males with few teeth on fixed cheliceral digit and short Jv5, without J2, Z1
and leg macrosetae. In addition, females lack Jv3 and Zv3, and have a reduced ventrianal shield.
county, State of Rio Grande do Sul, Brazil. This is the first species of this family described from this State and
the second of Rubroscirus for Brazil.