Abstract
Digonocryptus magnus sp. nov., from French Guyana, is described and illustrated, and new records, morphological and morphometric data are presented for two other rare species, D. coloratus (Szépligeti, 1916), registered for the first time from Colombia, and D. zatheos Aguiar & Santos, 2012. The new species is characterized by having the apical margin of the clypeus straight, medially with a small tooth, propodeal apophyses stout, scale-shaped, fore wing with ramellus, areolet about as wide as high, nearly quadrate, 2r-m as long as the mostly spectral 3r-m, T1basally with a distinct lateral rounded flange, and the longest ovipositor of the genus. The study employs morphological character coding combined with a reanalysis of published molecular data to investigate the phylogenetic placement of D. magnus. The results suggest that it may represent a borderline species within Digonocryptus or potentially a new genus, although further investigation is required due to limited available material and inconclusive data.
References
- Aguiar, A.P. (2005) Cladistic Assessment, Key and Description of Two New Neotropical Genera and Species of Gabuniina (Hymenoptera: Ichneumonidae: Cryptinae). Journal of Hymenoptera Research, 14 (2), 121–136.
- Aguiar, A.P. & Broad, G.R. (2022). A new technique and software to optimize compression and data retrieval in the Material Examined section of taxonomic publications. European Journal of Taxonomy, 852 (1), 43–56. https://doi.org/10.5852/ejt.2022.852.2007.
- Aguiar, A.P. & Gibson, G.A. (2010) The spatial complexity in describing leg surfaces of Hymenoptera (Insecta), the problem and a proposed solution. Zootaxa, 2415, 54–62. https://doi.org/10.11646/zootaxa.2415.1.5
- Aguiar, A.P. & Ramos, A.C.B. (2011) Revision of Digonocryptus Viereck (Hymenoptera: Ichneumonidae: Cryptinae), with twenty six new taxa and cladistic interpretation of two species complexes. Zootaxa, 2846 (1), 1–98. https://doi.org/10.11646/zootaxa.2846.1.1
- Aguiar, A.P. & Santos, B.F. (2010) Discovery of potent, unsuspected sampling disparities for Malaise and Möricke traps, as shown for Neotropical Cryptini (Hymenoptera, Ichneumonidae). Journal of Insect Conservation, 14, 199–206. https://doi.org/10.1007/s10841-009-9246-x
- Aguiar, A.P. & Santos, B.F. (2012) Additions to the revision of Digonocryptus Viereck (Hymenoptera, Ichneumonidae, Cryptinae), with nine new taxa, new males, and distribution maps for all known species. Zootaxa, 3282 (1), 1–41. https://doi.org/10.11646/zootaxa.3282.1.1
- Cameron, P. (1885) Hymenoptera. Ichneumonides. In: Godman F.D. & Salvin O. Biologia Centrali-Americana, 1, 145–240.
- Goloboff, P. & Catalano, S. (2016) TNT, version 1.5, with a full implementation of phylogenetic morphometrics. Cladistics, 32, 221–238. https://doi.org/10.1111/cla.12160
- Kasparyan, D.R. & González H., A. (2007) A new species of the genus Digonocryptus Viereck from Mexico (Hymenoptera: Ichneumonidae: Cryptini). Zoosystematica Rossica, 16 (1), 43–44. https://doi.org/10.31610/zsr/2007.16.1.43
- Kasparyan, D.R. & Ruíz-Cancino, E.C. (2005) Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte I. Avispas Parasíticas de Plagas y Otros Insectos. Universidad Autónoma de Tamaulipas, Victoria, 287 pp.
- Santos, B.F. (2017) Phylogeny and reclassification of Cryptini (Hymenoptera, Ichneumonidae, Cryptinae), with implications for ichneumonid higher-level classification. Systematic Entomology, 42 (4), 650–676. https://doi.org/10.1111/syen.12238
- Santos, B.F. & Aguiar, A.P. (2013) Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa, 3634 (1), 1–284. https://doi.org/10.11646/zootaxa.3634.1.1
- Santos, B.F. & Perrard, A. (2018) Testing the Dutilleul syndrome: host use drives the convergent evolution of multiple traits in parasitic wasps. Journal of Evolutionary Biology, 31 (10), 1430–1439. https://doi.org/10.1111/jeb.13343
- Szépligeti, G. (1916) Ichneumoniden aus der Sammlung des ungarischen National-Museums II. Annales Musei Nationalis Hungarici, 14, 225–380.
- Townes, H.K. (1970) Genera of Ichneumonidae, Part 2, Gelinae. Memoirs of the American Entomological Institute, 12, 1–537.
- Townes, H.K. & Townes, M. (1966) A catalogue and reclassification of the Neotropic Ichneumonidae. Memoirs of the American Entomological Institute, 8, 1–367.
- Wimmer, G. & Witkovský, V. (2002) Proper rounding of the measurement results under the assumption of uniform distribution. Measurement Science Review, 2 (1), 1–7.
- Yu, D.S., van Achterberg, C. & Horstmann, K. (2016) Taxapad 2016, Ichneumonoidea 2015. Nepean, Ontario. [database on flashdrive]
- Yu, D.S. & Horstmann, K. (1998) A catalogue of world Ichneumonidae (Hymenoptera). Memoirs of the American Entomological Institute, 58, 1–1558.