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Issue: Vol. 5642 No. 3: 29 May 2025
Type: Article
Published: 2025-05-29
DOI: 10.11646/zootaxa.5642.3.5
Page range: 271-286
Abstract views: 76
PDF downloaded: 1

Cryptachaea pacoti, a new species of spider from Brazil (Araneae: Theridiidae), with notes on parasitoid-host interaction under the influence of abiotic factors

Instituto de Ciências Exatas e da Natureza; Laboratório de Ecologia e Evolução; Universidade da Integração Internacional da Lusofonia Afro-Brasileira; Rod. CE 060; Acarape; CE; Brazil.
Instituto Butantan; Laboratório de Coleções Zoológicas; Av. Vital Brasil 1500; CEP 05503-900; São Paulo; SP; Brazil.
Instituto de Ciências Exatas e da Natureza; Laboratório de Ecologia e Evolução; Universidade da Integração Internacional da Lusofonia Afro-Brasileira; Rod. CE 060; Acarape; CE; Brazil.; Programa de Pós-Graduação em Ecologia e Recursos Naturais; Departamento de Biologia; Universidade Federal do Ceará; CEP 60440-900; Fortaleza; CE; Brazil.
Programa de Pós-Graduação em Ecologia e Recursos Naturais; Departamento de Biologia; Universidade Federal do Ceará; CEP 60440-900; Fortaleza; CE; Brazil.
Instituto de Ciências Exatas e da Natureza; Laboratório de Ecologia e Evolução; Universidade da Integração Internacional da Lusofonia Afro-Brasileira; Rod. CE 060; Acarape; CE; Brazil.; Programa de Pós-Graduação em Ecologia e Recursos Naturais; Departamento de Biologia; Universidade Federal do Ceará; CEP 60440-900; Fortaleza; CE; Brazil.
Araneae Brejos de altitude Parasitoidism Frequency climate variables

Abstract

The spider theridiid genus Cryptachaea Archer (1946) include today 112 species distributed in tropical and temperate regions worldwide. These spiders are attacked by Ichneumonidae parasitoids of the Polysphincta group of genera. In one of the remaining Atlantic Forest areas of the state of the Ceará, Brazil, we recorded the spider Cryptachaea pacoti sp. nov. (Theridiidae) being parasitized by the wasp Zatypota riverai Gauld, 1991 (Hymenoptera: Ichneumonidae). In this study we describe the new spider species C. pacoti. sp. nov. (Theridiidae); an unknown interaction between the parasitoid wasp Z. riverai (Hymenoptera: Ichneumonidae) and the spider C. pacoti sp. nov., and the correlation of abiotic factors (temperature and precipitation) on the temporal variation of the parasitism rate and total abundance of C. pacoti spiders. Our study reveals that parasitoidism is more frequent between the months of May and April and that the parasitoidism rate correlates negatively with temperature, but positively with precipitation. Although we quantified parasitized and non-parasitized spiders, we did not systematically record the life stages of all collected individuals. However, observations during the sampling period indicated that only adult and subadult spiders were parasitized, suggesting possible wasp selectivity for more developed stages of the host spider. These patterns may reflect a synchronization between the life cycles of the host and the parasitoid, influenced by the region’s humid microclimate in contrast to the surrounding semiarid environment. Precipitation did not correlate with the total abundance of spiders, but temperature negatively correlated with both spider abundance and parasitism rate, likely due to changes in microhabitat structure and wasp reproductive dynamics. The spiders likely exhibit seasonal abundance patterns related to forest formation type. While Ceará is largely characterized by the Caatinga biome's dry and hot climate, the Brejos de Altitude function as humid refuges with milder microclimates, greater vegetation cover, and high moisture retention, promoting more stable arthropod communities throughout the year.

 

References

  1. Abdala‐Roberts, L., Puentes, A., Finke, D.L., Marquis, R.J., Montserrat, M., Poelman, E.H. & Björkman, C. (2019) Tri‐trophic interactions: bridging species, communities and ecosystems. Ecology Letters, 22 (12), 2151–2167. https://doi.org/10.1111/ele.13392
  2. Assunção, L.O.A. (2023) Survey of prey of the spider Vectius niger sp. (Trochanteridae) in an urban environment of Uberlândia, Minas Gerais, Brazil. Available from: https://repositorio.ufu.br/handle/123456789/38317 (accessed 29 November 2024)
  3. Barrantes, G., Eberhard, W.G. & Weng, J.L. (2008) Seasonal patterns of parasitism of the tropical spiders Theridion evexum (Araneae, Theridiidae) and Allocyclosa bifurca (Araneae, Araneidae) by the wasps Zatypota petronae and Polysphincta gutfreundi (Hymenoptera, Ichneumonidae). Revista de Biologia Tropical, 56 (2), 749–754. https://doi.org/10.15517/rbt.v56i2.5621
  4. Buckup, E.H., Marques, M.A.L. & Rodrigues, E.N.L. (2010) Três espécies novas de Cryptachaea e notas taxonômicas em Theridiidae (Araneae). Iheringia, Série Zoologia, 100, 341–355. https://doi.org/10.1590/S0073-47212010000400009
  5. Buckup, E.H., Marques, M.A.L. & Ott, R. (2006) Three new species of Achaearanea (Araneae, Theridiidae) from Brazil occurring in leaf litter. Iheringia. Série Zoologia, 96, 61–64. https://doi.org/10.1590/S0073-47212006000100010
  6. Camurça, L.M., Santos, A.M.M., Castro, C.C. & Leite, A.V. (2024) Trophic interactions between plants, pollinators, florivores and predators: a global systematic review. Biological Journal of the Linnean Society, 141 (2), 214–222. https://doi.org/10.1093/biolinnean/blad079
  7. Dias, S.C., Brescovit, A.D., Couto, E.C. & Martins, C.F. (2006) Species richness and seasonality of spiders (Arachnida, Araneae) in an urban Atlantic Forest fragment in Northeastern Brazil. Urban Ecosystems, 9, 323–335. https://doi.org/10.1007/s11252-006-0002-7
  8. Eberhard, W.G. (2000a) Spider manipulation by a wasp larva. Nature, 406, 255–256. https://doi.org/10.1038/35018636
  9. Eberhard, W.G., Agnarsson, I. & Levi, H.W. (2008) Web forms and the phylogeny of theridiid spiders (Araneae: Theridiidae): chaos from order. Systematics and biodiversity, 6 (4), 415. https://doi.org/10.1017/S1477200008002855
  10. Eberhard, W.G. & Gonzaga, M.O. (2019) Evidence that Polysphincta-group wasps (Hymenoptera: Ichneumonidae) use ecdysteroids to manipulate the web-construction behaviour of their spider hosts. Biological Journal of the Linnean Society, 127, 429–471. https://doi.org/10.1093/biolinnean/blz044
  11. Funceme Fundação Cearense de Meteorologia e Recursos Hídricos (2024) Available from: http://www.funceme.br/app/radar (accessed 20 November 2024)
  12. de Souza Gois, L.S., de Barros Corrêa, A.C. & de Araújo Monteiro, K. (2019) Integrated Analysis of Highland Humid Brejos in Northeast Brazil Based on Physiographic Attributes. Espaço Aberto, 9 (2), 77–98. https://doi.org/10.36403/espacoaberto.2019.28357
  13. Gonzaga, M.O., Moura, R.R., Gaione-Costa, A. & Kloss, T.G. (2024) Patterns of host specificity in interactions involving behavioral manipulation of spiders by Darwin wasps. Advances in the Study of Behavior, 56, 89–154. https://doi.org/10.1016/bs.asb.2024.02.002
  14. Harvey, J.A. (2005) Factors affecting the evolution of development strategies in parasitoid wasps: the importance of functional constraints and incorporating complexity. Entomologia experimentalis et applicata, 117 (1), 1–13. https://doi.org/10.1111/j.1570-7458.2005.00348.x
  15. Kassambara, A. (2018) ggpubr:'ggplot2'based publication ready plots. R Package Version 0.6.0. Available from: https://rpkgs.datanovia.com/ggpubr/ (accessed 11 November 2024)
  16. Kloss, T.G., Gonzaga, M.O., Mendes-Pereira, T. & dos Santos de Almeida, S. (2024) Deluded zombies: induced behavioral modification in a cobweb spider does not increase the survival of its parasitoid wasp. Behavioral Ecology and Sociobiology, 78 (1), 13. https://doi.org/10.1007/s00265-024-03428-9
  17. Korenko, S., Michalková, V., Zwakhals, K. & Pekár, S. (2011) Host specificity and temporal and seasonal shifts in host preference of a web-spider parasitoid Zatypota percontatoria. Journal of Insect Science, 11 (1), 101. https://doi.org/10.1673/031.011.10101
  18. Korenko, S., Potopová, V., Satrapová, J. & Pekár, S. (2016) Life history of the spider parasitoid Zatypota percontatoria (Hymenoptera: Ichneumonidae). Entomological Science, 19 (2), 104–111. https://doi.org/10.1111/ens.12171
  19. Korenko, S. (2017) First record from Italy of Zatypota anomala (Ichneumonidae, Ephialtini), a parasitoid of the cribellate spider Dictyna pusilla (Araneae, Dictynidae). Arachnologische Mitteilungen, 54, 1–4. https://doi.org/10.5431/aramit5401
  20. Kovach, W. (2011) Oriana—circular statistics for Windows. Version 4. Kovach Computing Services, Pentraeth, Wales. [program]
  21. Leroy, B., Paschetta, M., Canard, A., Bakkenes, M., Isaia, M. & Ysnel, F. (2013) First assessment of effects of global change on threatened spiders: Potential impacts on Dolomedes plantarius (Clerck) and its conservation plans. Biological Conservation, 161, 155–163. https://doi.org/10.1016/j.biocon.2013.03.022
  22. Levi, H.W. (1965) Techniques for the study of spider genitalia. Psyche, 72, 152–158. https://doi.org/10.1155/1965/94978
  23. de Lima Marques, A., da Silva, J.B. & Silva, D.G. (2014) Refúgios úmidos do Semiárido: um estudo sobre o brejo de altitude de Areia-PB. Revista Geotemas, 4 (2), 17–31. Available from: https://periodicos.apps.uern.br/index.php/GEOTemas/article/view/661 (accessed 17 April 2025)
  24. Morellato, L.P.C., Alberti, L.F. & Hudson, I.L. (2010) Applications of circular statistics in plant phenology: a case studies approach. In: Hudson, I.L. & Keatley, M.R. (Eds.), Phenological research. Springer, Berlin, Dordrecht, pp. 339–359. https://doi.org/10.1007/978-90-481-3335-2_16
  25. Pereira, L.C., Villanueva‐Bonilla, G.A., De Andrade Santiago, L., De Pádua, D.G., Serrão, J.E., Kloss, T.G. & Sobczak, J.F. (2024) Immature stages and natural history of Eruga unilabiana (Hymenoptera: Ichneumonidae), an ectoparasitoid of two linyphiid spiders. Entomological Science, 27 (4), e12589. https://doi.org/10.1111/ens.12589
  26. Rodrigues, E.N.L. & Poeta, M.R.M. (2015) Twelve new Neotropical species of the spider genus Cryptachaea (Araneae: Theridiidae). The Journal of Arachnology, 43 (1), 26–33. https://doi.org/10.1636/K14-47.1
  27. Romero, G.Q. & Vasconcellos-Neto, J. (2003) Natural history of Misumenops argenteus (Thomisidae): seasonality and diet on Trichogoniopsis adenantha (Asteraceae). The Journal of Arachnology, 31 (2), 297–304. https://doi.org/10.1636/02-19
  28. Santos, A.M.M., Cavalcanti, D.R., Cardoso, J.M.S. & Tabarelli, M. (2007) Biogeographical relationships among tropical forests in north-eastern Brazil. Journal of Biogeography, 34, 437–446. https://doi.org/10.1111/j.1365-2699.2006.01604.x
  29. Signorell, A., Aho, K., Alfons, A., Anderegg, N., Aragon, T. & Arppe, A. (2019) DescTools: tools for descriptive statistics. Available from: https://cran.rproject.org/package=DescTools (accessed 10 November 2024)
  30. Silveira, M.H.B., Mascarenhas, R., Cardoso, D. & Batalha-Filho, H. (2019) Pleistocene climatic instability drove the historical distribution of forest islands in the northeastern Brazilian Atlantic Forest. Palaeogeography, Palaeoclimatology, Palaeoecology, 527, 67–76. https://doi.org/10.1016/j.palaeo.2019.04.028
  31. Sobczak, J.F., Arruda, I.D.P., de Pádua, D.G. & Villanueva-Bonilla, G.A. (2019) Parasitism in Theridion sp. (Araneae: Theridiidae) by Zatypota riverai Gauld, 1991 (Hymenoptera: Ichneumonidae: Pimplinae). The Journal of Arachnology, 47 (2), 266–270. https://doi.org/10.1636/JoA-S-18-103
  32. Sobczak, J.F., Messas, Y.F. & Pádua, D.G.D. (2017) Parasitism of Zatypota riverai Gauld (Hymenoptera: Ichneumonidae: Pimplinae) on Anelosimus baeza Agnarsson (Araneae: Theridiidae) in northeast Brazil, with a description of the male. Zootaxa, 4247 (1), 78–82. https://doi.org/10.11646/zootaxa.4247.1.11
  33. Sobczak, J.F., Xavier, G.M., Gonzaga, M.O. & Penteado‐Dias, A.M. (2023) Host size selection and progeny sex determination in Hymenoepimecis bicolor (Hymenoptera, Ichneumonidae,Pimplinae). Ethology, 129 (6), 280–287. https://doi.org/10.1111/eth.13365
  34. Tabarelli, M. & Santos, A.M. (2004) Uma breve descrição sobre a história natural dos Brejos Nordestinos. In: Porto, K.C., Cabral, J.J.P. & Tabarelli, M. (Eds.), Brejos de altitude em Pernambuco e Paraíba: história natural, ecologia e conservação. Ministério do Meio Ambiente, Serie Biodiversidade, Brasília, pp. 917–24
  35. Tanaka, K. (2007) Seasonal life cycle of Zatypota albicoxa (Hymenoptera: Ichneumonidae), an ectoparasitoid of Achaearanea tepidariorum (Araneae: Theridiidae), in northern Japan. Entomological Science, 10 (4), 421–423. https://doi.org/10.1111/j.1479-8298.2007.00231.x
  36. Takasuka, K. & Broad, G.R. (2024) A bionomic overview of spider parasitoids and pseudo-parasitoids of the ichneumonid wasp subfamily Pimplinae. Contributions to Zoology, 1 (aop), 1–106. https://doi.org/10.1163/18759866-bja10053
  37. Takasuka, K. & Tanaka, K. (2013) Seasonal life cycle of Zatypota albicoxa (Hymenoptera: Ichneumonidae), an ectoparasitoid of Parasteatoda tepidariorum (Araneae: Theridiidae), in southwestern Japan. Pacific Science, 67 (1), 105–111. https://doi.org/10.2984/67.1.7
  38. Vargas, S.E.T. (2023) Modificación comportamental de la araña Cryptachaea jequirituba (Araneae: Theridiidae) inducida por el parasitoide Zatypota alborhombarta (Hymenoptera: Ichneumonidae). Available from: https://locus.ufv.br/items/d38574de-2f8c-41a8-9a81-ffa036e01eeb (accessed 11 November 2025)
  39. Villanueva-Bonilla, G.A. & Vasconcellos-Neto, J. (2016) Population dynamics and phenology of the wall crab spider Selenops cocheleti Simon, 1880 (Araneae: Selenopidae) in Southeastern Brazil. Studies on neotropical fauna and environment, 51 (3), 215–230. https://doi.org/10.1080/01650521.2016.1234848
  40. Villanueva-Bonilla, G.A., Faustino, M.L., dos Santos, W.R., Pereira, L.C., de Pádua, D.G. & Sobczak, J.F. (2021) Behavioral manipulation of a “Trashline Orb-weaving spider” Cyclosa fililineata (Araneidae) by the parasitoid wasp Zatypota riverai (Ichneumonidae: Pimplinae). The Journal of Arachnology, 49 (1), 146–150. https://doi.org/10.1636/JoA-S-20-043
  41. Weng, J.L. & Barrantes, G.I.L.B.E.R.T. (2007) Natural history and larval behavior of the parasitoid Zatypota petronae (Hymenoptera: Ichneumonidae). Journal of Hymenoptera Research, 16 (2), 326–335
  42. Whitney, D. & Edward, T. (2014) Exploring the Links Between Seasonal Variation and Spider Foraging. Theses and Dissertations—Entomology, Lexington, Kentucky, 9 pp. https://uknowledge.uky.edu/entomology_etds/9
  43. Wojtowicz, T., Compson, Z.G., Lamit, L.J., Whitham, T.G. & Gehring, C.A. (2014) Plant genetic identity of foundation tree species and their hybrids affects a litter-dwelling generalist predator. Oecologia, 176, 799–810. https://doi.org/10.1007/s00442-014-2998-3
  44. World Spider Catalog (2025) World Spider Catalog. Version 25.5. Natural History Museum Bern, Bern. Available from: https://wsc.nmbe.ch/ (accessed 15 October 2025)
  45. Yoshida, H. (2008) A revision of the genus Achaearanea (Araneae: Theridiidae). Acta Arachnologica, 57 (1), 37–40. https://doi.org/10.2476/asjaa.57.37
  46. Zhang, H., Zhong, R., Yu, L., Chen, J., Agnarsson, I. & Liu, J. (2023) Safety is increasingly important in cobweb spiders based on life history. Integrative Zoology, 18 (4), 736–745. https://doi.org/10.1111/1749-4877.12682

How to Cite

Araújo, F.D.S., Brescovit, A.D., Pereira, L.C., Villanueva-Bonilla, G.A. & Sobczak, J.F. (2025) Cryptachaea pacoti, a new species of spider from Brazil (Araneae: Theridiidae), with notes on parasitoid-host interaction under the influence of abiotic factors. Zootaxa, 5642 (3), 271–286. https://doi.org/10.11646/zootaxa.5642.3.5