Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 3579 No. 1: 11 Dec. 2012
Type: Articles
Published: 2012-12-11
DOI: 10.11646/zootaxa.3579.1.5
Page range: 80–88
Abstract views: 35
PDF downloaded: 1

Redescription of the larva of Amblyomma oblongoguttatum Koch, 1844 (Acari: Ixodidae) by light and scanning electron microscopy

Embrapa Rondônia, 78900-970, Porto Velho, RO, Brazil
Embrapa Rondônia, 78900-970, Porto Velho, RO, Brazil
Laboratório Especial de Coleções Zoológicas, Instituto Butantan, 05503-900, São Paulo, SP, Brazil
Departamento de Parasitologia Animal, UFRRJ, 23890-000, Seropédica, RJ, Brazil
Faculdade de Medicina Veterinária e Zootecnia, USP, 05508-900 São Paulo, SP, Brazil
Instituto de Ciências Biomédicas 5, USP, 78965-000, Monte Negro, RO, Brazil
Acari Amblyomma oblongoguttatum larva description morphology chaetotaxy porotaxy

Abstract

The larval stage of Amblyomma oblongoguttatum Koch is redescribed using optical and scanning electron microscopy.Unfed larvae were obtained from a colony of A. oblongoguttatum originated from engorged females collected on domesticpigs from Monte Negro municipally (10°29’S, 63°32’W), State of Rondônia, Western Amazon, Brazil. Several charactersare presented including the chaetotaxy of the idiosoma, palpi and Haller’s organ, as well as morphological features of theidiosoma, gnathosoma and legs. In addition, the porotaxy (topographical and numerical patterns of integumentary struc-tures) were presented by using a new nomenclature recently proposed. The chaetotaxy of the larvae of A. oblongoguttat-um, in general, is similar to other Neotropical Amblyomma species. Three types of integumentary structures were observedon the idiosoma: lyrifissures, small glands, and large wax glands. Topographic and numerical patterns of the integumen-tary structures consisted of 5 pairs of large wax glands (1 dorsal/ 4 ventral), 24 pairs of lyrifissures (11 dorsal/ 13 ventral),and 49 pairs of small glands (28 dorsal/ 21 ventral). These topographic and numerical patterns found for A. oblongogut-tatum show only minor differences when compared with patterns of other Amblyomma larvae, however, a few key features can be used for identification of these species.

References

  1. Amorim, M & Serra-Freire, N.M. (1994a) Amblyomma nodosum Neumann, 1899 descrição morfológica do estádio de larva. Revista Brasileira de Parasitologia Veterinária, 3, 131–142.

    Amorim, M. & Serra-Freire, N.M. (1994b) Descrição morfológica do estádio de larva de carrapato (Acari: Ixodidae). 4. Amblyomma dissimile Koch, 1844. Boletim Museu Paraense Emílio Goeldi, série Zoológica, 10, 273–288.

    Amorim, M & Serra-Freire, N.M. (1995) Descrição morfológica do estádio de larva de carrapato (Acari: Ixodidae). 1. Amblyomma rotundatum Koch, 1844. Parasitologia al Dia, 19, 9–19.

    Amorim, M. & Serra-Freire, N.M. (1996) Morphological description of tick larval stage (Acari: Ixodida). 3. Amblyomma varium Koch, 1844. Entomologia y Vectores, 3, 67–81.

    Amorim, M. & Serra-Freire, N.M. (1999a) Descrição morfológica do estádio de larva de carrapato (Acari: Ixodidae). 6. Amblyomma cooperi Nuttall & Warburton, 1907. Entomologia y Vectores, 6, 126–155.

    Amorim, M. & Serra-Freire, N M. (1999b) Descrição morfológica do estádio de larva de carrapato (Acari: ixodidae). 8. Amblyomma geayi Neumann, 1899. Entomologia y Vectores, 6, 517–554.

    Amorim, M. & Serra-Freire, N.M. (2000) Morphological description of tick larval stage (Acari: Ixodidae). 7. Amblyomma auriculare (Conil, 1878). Entomologia y Vectores, 7, 297–310.

    Aragão, H.P. & Fonseca, F. (1961) Notas de Ixodologia.VIII. Lista e chave dos representantes da fauna ixodológica brasileira. Memórias do Instituto Oswaldo Cruz, 59, 115–129.

    Arzua, M. (2002) Bioecologia do parasitismo de carrapatos (Acari: Ixodidae) em aves silvestres do Bosque Reinhard Maack, Curitiba, Paraná. Descrição, diagnóstico morfológico e molecular da larva de Amblyomma aureolatum (Pallas, 1772). Curitiba. Universidade Federal do Paraná, MSc Dissertation. 88 pp.

    Arzua, M., Onofrio, V. C. & Barros-Battesti, D.M. (2005) Catalogue of the tick collection (Acari: Ixodida) of the Museu de História Natural Capão da Imbuia, Curitiba, Paraná, Brazil. Revista Brasileira de Zoologia, 22, 623–632.

    Barbieri, F.S., Chacón, S.C., Labruna, M.B., Barros-Battesti, D.M., Faccini, J.L.H. & Famadas, K.M. (2007) Topographical and numerical study of the idiosomal integumental structures of the larva of four Neotropical Amblyomma (Acari: Ixodidae) species. Systematic Parasitology, 68, 57–70.

    Barbieri, F.S., Brito, L.G., Labruna, M.B., Barros-Battesti, D.M., Camargo, L.M.A. & Famadas, K.M. (2008a) Description of the larva of Amblyomma ovale Koch, 1844 (Acari: Ixodidae) by light and scanning electron microscopy. Systematic and Applied Acarology, 13, 109–119.

    Barbieri, F.S., Brito, L.G., Labruna, M.B., Barros-Battesti, D.M., Camargo, L.M.A. & Famadas, K.M. (2008b) Description of the larva of Amblyomma pacae Aragão, 1911 (Acari: Ixodidae) by light and scanning electron microscopy. Systematic and Applied Acarology, 13, 195–203.

    Barros-Battesti, D.M.; Arzua M.; Rebello, V.M.M.; Barbieri, F.S. & Famadas, K.M. (2005) Description of the larva of Amblyomma longirostre (Koch 1844) (Acari: Ixodidae) by light and scanning electron microscopy. Revista Brasileira de Parasitologia Veterinária, 14, 51–57.

    Clifford, C.M. & Anastos, G. (1960) The use of chaetotaxy in the identification of larval ticks (Acarina: Ixodidae). Journal of Parasitology, 46, 567–578.

    Dantas-Torres, F., Onofrio, V. C. & Barros-Battesti, D.M. (2009) The ticks (Acari: Ixodida: Argasidae, Ixodidae) of Brazil. Systematic and Applied Acarology, 14, 30–46.

    Dinnik, J. & Zumpt, F. (1949) The integumentary sense organs of the larvae of Rhipicephalinae (Acarina). Psyche, 56, 1–17.

    Estrada-Peña, A., Guglielmone, A.A., Mangold, A.J. & Castellá, J. (1993) A description of Amblyomma tigrinum Koch, A. neumanni Ribaga and A. testudinis (Conil) immatures (Acarina: Ixodidae). Folia Parasitologica, 40, 147–153.

    Famadas, K.M., Serra-Freire, N.M. & Lanfredi, R.M. (1997) Redescription of the larva of Amblyomma cajennense (Fabricius) (Acari: Ixodidae) using optical and scanning electron microscopy. Acarologia, 38, 101–109.

    Guglielmone, A.A., Mangold, A.J. & Keirans, J.F. (1990) Redescription of the male and female of Amblyomma parvum Aragão, 1908 and description of nymph and larva, and description of all stages of Amblyomma pseudoparvum n.sp. (Acari: Ixodida: Ixodidae). Acarologia, 32, 143–159.

    Guglielmone, A.A., Beati, L., Barros-Battesti, D.M., Labruna, M.B., Nava, S., Venzal, J.M., Mangold, A.J., Szabó, M.P.J., Martins, J.R., González-Acuña, D. & Estrada-Peña, A. (2006) Ticks (Ixodidae) on humans in South America. Experimental and Applied Acarology, 40, 86–100.

    Hess, E. & Vlimant, M. (1983) The tarsal sensory system of Amblyomma variegatum Fabricius (Ixodidae: Metastriata). III. Mapping of sensory hairs and evolution of relative importance of sensory modalities during post-embryonic development. Revue Suisse Zoologie, 90, 887–897.

    Keirans, J.E., Clifford, C.M. & Corwin, D. (1976) Ixodes sigelos n. sp. (Acarina: Ixodidae), a parasite of rodents in Chile, with a method for preparing ticks for examination by scanning electron microscopy. Acarologia, 18, 217–225.

    Klompen, J.S.H., Keirans, J.E., Filippova, N.A. & Oliver, J.H. JR. (1996) Idiosomal lyrifissures, setae, and small glands as taxonomic characters and potencial indicators of ancestral segmentation patterns in larval Ixodidae (Acari: Ixodida). International Journal of Acarology, 22, 113–134.

    Labruna, M.B., Jorge, R.S., Sana, D.A., Jácomo, A.T., Kashivakura, C.K., Furtado, M.M., Ferro, C., Perez, S.A., Silveira, L., Santos Jr, T.S., Marques, S.R., Morato, R.G., Nava, A., Adania, C.H., Teixeira, R.H., Gomes, A.A., Conforti, V.A., Azevedo, F.C., Prada, C.S., Silva, J.C., Batista, A.F., Marvulo, M.F., Morato, R.L., Alho, C.J., Pinter, A., Ferreira, P.M., Ferreira, F. & Barros-Battesti, D.M. (2005) Ticks (Acari: Ixodida) on wild carnivores in Brazil. Experimental and Applied Acarology 36, 149–163.

    Nawar, M.S. & Madbouly, M.H. (1985) The possible use of integumentary sense organs as specific diagnostic mean for larvae and nynphs of Rhipicephalus sanguineus and Rhipicephalus turanicus. Journal Egyptian Society Parasitology, 15, 607–621.

    Martins, T.F., Onofrio, V. C., Barros-Battesti, D.M. & Labruna M.B. (2010) Nymphs of the genus Amblyomma (Acari: Ixodidae) of Brazil: descriptions, redescriptions, and identification key. Ticks and Tick-borne Diseases, 1, 75–99.

    Onofrio, V.C., Labruna, M.B., Pinter, A., Giacomin, F.G. & Barros-Battesti, D.M. (2006) Comentários e chaves para as espécies do gênero Amblyomma. In: Barros-Battesti, D.M., Arzua, M. & Bechara, G.H. (Eds.) Carrapatos de importância médico-veterinária da Região Neotropical: um guia ilustrado para identificação de espécies. São Paulo, Brasil, Vox/ICTTD-3/Butantan. pp. 53–113.

    Robinson, L.E. (1926) Ticks. A monograph of the Ixodoidea IV.—The genus Amblyomma. Cambridge University Press, London, 302 pp.

    Sanches, G.S., Bechara, G.H. & Camargo-Mathias, M.I. (2009) Morphological description of Amblyomma brasiliense Aragão, 1908 (Acari: Ixodidae) larvae and nymphs. Revista Brasileira de Parasitologia Veterinária, 18, 15–21.

    Schulze, P. (1942) Ueber die Hautsinnesorgane der Zecken, besonders uber eine bisher unbekannte Art von Arthropoden-sinnesorgane, die Krobylophoren. Zeitschrift fuer Morphologie und Okologie der Tiere, 39, 1–20.

    Wooley, T.A. (1988) Acarology. Mites and human welfare. A Wiley-Interscience Publications, Wiley, J. & Sons Ed, New York, 484 pp.