A new species of rake-legged mite Neocaeculus (Acari, Caeculidae) from Brazilian semiarid and new data on distribution of Andocaeculus caioi

A new caeculid species Neocaeculus setecidades sp. nov. from the semiarid is described from the National Park Sete Cidades located in the state of Piauí, Brazil. The species is included in Neocaeculus Coineau, 1967 due the presence of different sized claws on leg I, absence of bothridia in the tarsi of anterior legs and the aspidosomal sclerite not overhanging the gnathosoma in lateral view. New data on distribution of Andocaeculus caioi Ott & Ott, 2014 is presented.

KEYWORDS
Neotropical; South America; taxonomy

Authorship

Ana Paula Ott

Departamento de Fitossanidade, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul. Av. Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil. (ana.ott@ufgrs.br)Universidade Federal do Rio Grande do SulBrazilPorto Alegre, RS, BrazilDepartamento de Fitossanidade, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul. Av. Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil. (ana.ott@ufgrs.br)

http://orcid.org/0000-0002-5296-6240

Ricardo Ott

Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul. Rua Dr. Salvador França, 1427, 90690-000, Porto Alegre, RS, Brazil. (rott@fzb.rs.gov.br)Fundação Zoobotânica do Rio Grande do SulBrazilPorto Alegre, RS, BrazilMuseu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul. Rua Dr. Salvador França, 1427, 90690-000, Porto Alegre, RS, Brazil. (rott@fzb.rs.gov.br)

http://orcid.org/0000-0001-7392-1415

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (7)

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Figures 1-5
Neocaeculus setecidades sp. nov., paratype ♀: 1, dorsal view; 2, ventral view; 3, lateral view; 4, anterior portion of aspidosomal sclerite, dorsal view; 5, tarsi of legs I, dorso-anterior view. Scales bars: 1, 2, 3, 1000 μm; 4, 250 μm; 5, 100 μm

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Figures 6-9
Neocaeculus setecidades sp. nov., holotype ♂, cleared: 6, 8, dorsal view; 7, 9, ventral view. Scale bars: 500 μm.

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Figures 10-14
Neocaeculus setecidades sp. nov., holotype ♂: 10, anterior portion of tarsus of leg I, prolateral view; 11, anterior portion of aspidosomal sclerite, dorsal view; 12, palp, dorsal view; 13, palp, ventral view; 14, internal genital sclerite, ventral view (bo, bothridium; eu, eupathidium; fs, foliar seta; Po, naso seta; sol, solenidion; ts, tarsal solenidion). Scale bars: 10, 12, 13, 50 μm; 11, 250 μm; 14, 100 μm.

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Figures 15-22
Neocaeculus setecidades sp. nov.: 15, 17, 19, 21, trochanter, basifemur, femur and genu, respectively Legs I, II, III, IV, dorso-prolateral view; 16, 18, 20, 22, tibia and tarsus, respectively Legs I, II, III, IV, prolateral view (bt, tarsal bothridium; sol, solenidion; ts, tarsal solenidion). Scale bar: 250 μm. Dotted circles indicate solenidia and eupathidia at retrolateral positions.

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Figures 23-30
Neocaeculus setecidades sp. nov., paratype ♂, scanning electron microscope images, Leg I: 23, tarsus, dorso-retrolateral view; 24, tarsal claws, dorsal view (arrows: foliar setae); 25, same, retrolateral view (arrow: foliar seta); 26, tarsal distal eupathidium, ventral view; 27, tarsal medial eupathidium elevated base, lateral view (arrow: eupathidium); 28, tibial solenidion, retrolateral view; 29, tarsus, prolateral view (arrow: tarsal solenidion); 30, same, solenidion detail. Scale bars: 23, 100 μm; 24, 25, 27, 28, 30, 10 μm; 26, 5 μm; 29, 50 μm.

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Figures 31-38
Neocaeculus setecidades sp. nov., paratype ♂, scanning electron microscope images: 31, 32, Leg II; 33-36, Leg III; 37, 38, Leg IV. Fig. 31, tarsus, dorso-prolateral view; 32, tibial solenidion, dorso-retrolateral view; 33, tarsus, retrolateral view (arrow: tarsal bothridium); 34, tarsal bothridium, dorso-retrolateral view; 35, tibial solenidion, retrolateral view; 36, tarsal claws, retrolatertal view (arrow: foliar seta); 37, tarsus, retrolateral view (arrow: tarsal bothridium); 38, tarsal bothridium base, dorso-retrolateral view. Scale bars: 31, 50 μm; 32, 34, 36, 38, 10 μm; 33, 37, 100 μm; 35, 5 μm.

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Figures 39-42
Neocaeculus setecidades sp. nov. habitats in the Parque Nacional Sete Cidades, Piracuruca, Piauí, Brazil. 39, 40, grasslands; 41, 42, dry semideciduous Forest.

Figures 1-5 Neocaeculus setecidades sp. nov., paratype ♀: 1, dorsal view; 2, ventral view; 3, lateral view; 4, anterior portion of aspidosomal sclerite, dorsal view; 5, tarsi of legs I, dorso-anterior view. Scales bars: 1, 2, 3, 1000 μm; 4, 250 μm; 5, 100 μm

Figures 6-9 Neocaeculus setecidades sp. nov., holotype ♂, cleared: 6, 8, dorsal view; 7, 9, ventral view. Scale bars: 500 μm.

Figures 10-14 Neocaeculus setecidades sp. nov., holotype ♂: 10, anterior portion of tarsus of leg I, prolateral view; 11, anterior portion of aspidosomal sclerite, dorsal view; 12, palp, dorsal view; 13, palp, ventral view; 14, internal genital sclerite, ventral view (bo, bothridium; eu, eupathidium; fs, foliar seta; Po, naso seta; sol, solenidion; ts, tarsal solenidion). Scale bars: 10, 12, 13, 50 μm; 11, 250 μm; 14, 100 μm.

Figures 15-22 Neocaeculus setecidades sp. nov.: 15, 17, 19, 21, trochanter, basifemur, femur and genu, respectively Legs I, II, III, IV, dorso-prolateral view; 16, 18, 20, 22, tibia and tarsus, respectively Legs I, II, III, IV, prolateral view (bt, tarsal bothridium; sol, solenidion; ts, tarsal solenidion). Scale bar: 250 μm. Dotted circles indicate solenidia and eupathidia at retrolateral positions.

Figures 23-30 Neocaeculus setecidades sp. nov., paratype ♂, scanning electron microscope images, Leg I: 23, tarsus, dorso-retrolateral view; 24, tarsal claws, dorsal view (arrows: foliar setae); 25, same, retrolateral view (arrow: foliar seta); 26, tarsal distal eupathidium, ventral view; 27, tarsal medial eupathidium elevated base, lateral view (arrow: eupathidium); 28, tibial solenidion, retrolateral view; 29, tarsus, prolateral view (arrow: tarsal solenidion); 30, same, solenidion detail. Scale bars: 23, 100 μm; 24, 25, 27, 28, 30, 10 μm; 26, 5 μm; 29, 50 μm.

Figures 31-38 Neocaeculus setecidades sp. nov., paratype ♂, scanning electron microscope images: 31, 32, Leg II; 33-36, Leg III; 37, 38, Leg IV. Fig. 31, tarsus, dorso-prolateral view; 32, tibial solenidion, dorso-retrolateral view; 33, tarsus, retrolateral view (arrow: tarsal bothridium); 34, tarsal bothridium, dorso-retrolateral view; 35, tibial solenidion, retrolateral view; 36, tarsal claws, retrolatertal view (arrow: foliar seta); 37, tarsus, retrolateral view (arrow: tarsal bothridium); 38, tarsal bothridium base, dorso-retrolateral view. Scale bars: 31, 50 μm; 32, 34, 36, 38, 10 μm; 33, 37, 100 μm; 35, 5 μm.

Figures 39-42 Neocaeculus setecidades sp. nov. habitats in the Parque Nacional Sete Cidades, Piracuruca, Piauí, Brazil. 39, 40, grasslands; 41, 42, dry semideciduous Forest.

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Museu de Ciências Naturais Museu de Ciências Naturais, Secretária do Meio Ambiente e Infraestrutura, Rua Dr. Salvador França, 1427, Jardim Botânico, 90690-000 - Porto Alegre - RS - Brasil, Tel.: + 55 51- 3320-2039 - Porto Alegre - RS - Brazil
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A new species of rake-legged mite Neocaeculus (Acari, Caeculidae) from Brazilian semiarid and new data on distribution of Andocaeculus caioi

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