Heteragrion majus Selys, 1886

Vilela, Diogo Silva, Lencioni, Frederico A. A., Bota-Sierra, Cornelio A., Ware, Jessica L. & Bispo, Pitágoras C., 2023, Taxonomic revision of the Neotropical genus Heteragrion Selys, 1862 (Zygoptera: Heteragrionidae): male morphology, new species and illustrated key, Zootaxa 5356 (1), pp. 1-96 : 65-66

publication ID	https://doi.org/10.11646/zootaxa.5356.1.1
publication LSID	lsid:zoobank.org:pub:F3CE1E00-45BB-44C8-8911-1A355BFD223C
DOI	https://doi.org/10.5281/zenodo.10563641
persistent identifier	https://treatment.plazi.org/id/73444D3A-FFA8-9142-6AD7-FA30A81FA4E0
treatment provided by	Plazi (2023-10-16 13:00:53, last updated 2024-01-24 17:25:53)
scientific name	Heteragrion majus Selys, 1886
status

Treatment

Heteragrion majus Selys, 1886 View in CoL

( Figs. 47a–e View FIGURE 47 )

[Key locator: Key to Group B species, couplet 21’]

Heteragrion majus: Selys 1886: 62–63 View in CoL (description of ♁ from Panama; comparison with H. aequatoriale View in CoL );— Calvert 1901: 62–63 (remarks; fig. 6);— Calvert 1909: 108 (comparison with H. aequatoriale View in CoL );— Ris 1918: 86–87 (additions to original description; description of ♀; comparison with H. erythrogastrum View in CoL );— Williamson 1919: 35 (key to species, ♁ in couplet f1, ♀ in couplet d1; comparison with H. albifrons View in CoL ; figs. 42–43, 62, 67, 91–92, 106, 129–130, 156–157);— Paulson 1981: 303 (comparison of coloration patterns with other Heteragrion View in CoL species);— Garrison et al. 2010: 88, 91 (list of Heteragrion View in CoL species; fig. 395);— Garrison & von Ellenrieder 2013: 15, 23 (list of species from Costa Rica; fig. 20);— Ramírez & Gutiérrez-Fonseca 2013: 97–100 View Cited Treatment (description of F0 larvae; key to larvae known to Costa Rica, couplet 2);— Molinar et al. 2015: 87 (list of species from Panama).

Material examined. 1♁, 1♀ COSTA RICA, San Jose, Hacienda Zurqui , 16.viii.1979, (1500m asl), R.W. & J.A. Garrison leg., ABMM .

Known distribution. Costa Rica, Panama.

Diagnosis and remarks. The following character combination distinguishes this species from the remainder of Group B species: BP with a nearly straight margin, bearing no swelling or convexity ( Figs. 47c–e View FIGURE 47 ); MP the shortest portion of cercus in length ( Figs. 47c–e View FIGURE 47 ); ridge above ML formed by spaced and very strong teeth ( Figs. 47c–e View FIGURE 47 ), 2–3 strong teeth on its apex ( Fig. 47e View FIGURE 47 ); ML apex acute ( Figs. 47c–e View FIGURE 47 ).

References

Calvert, P. P. (1901) Odonata. In: Godman, F. D. & Salvin, O. (Eds.), Biologia Centrali Americana - insecta Neuroptera. R. H. Porter & Dulau Co., London, pp. 17 - 72.

Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6 (3), 73 - 280. https: // doi. org / 10.5962 / p. 202300

Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly genera of the New World. An illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, xiv + 490 pp.

Garrison, R. W. & von Ellenrieder, N. (2013) A contribution to the study of the biodiversity of Odonata in Costa Rica with an emphasis on the genus Argia (Insecta: Odonata: Coenagrionidae). International Dragonfly Fund - Report, 62, 1 - 23.

Molinar, M., Cornejo, A. & Novelo-Gutierrez, R. (2015) Orden Odonata (Insecta) en Panama: listado de especies, distribucion de generos y comparacion con la riqueza taxonomica regional de Centroamerica. Puente Biologico, 7, 69 - 107.

Paulson, D. R. (1981) Anatomical modifications for displaying bright coloration in megapodagrionid and chlorocyphid dragonflies (Zygoptera). Odonatologica, 10 (4), 301 - 310

Ramirez, A. & Gutierrez-Fonseca, P. (2013) The larvae of Heteragrion majus Selys and H. atrolineatum Donnelly, with a key to known species from Costa Rica (Odonata: Megapodagrionidae). Zootaxa, 3609 (1), 96 - 100. https: // doi. org / 10.11646 / zootaxa. 3609.1.8

Ris, F. (1918) Libellen (Odonata) aus der Region der Amerikanischen Kordilleren von Costarica bis Catamarca. Archiv f ¸ r Naturgeschichte, A (9), 1 - 197.

Selys, M. E. (1886) Revision du synopsis des Agrionides, Premiere partie comprenant les legions Pseudostigma - Podagrion - Platycnemis et Protoneura. Memoires couronnes et Autres Memoires publies par Academie Royale des Sciences, des Lettres et des Beaux Arts de Belgique, 38 (4), 1 + iv + 2 - 233.

Williamson, E. B. (1919) Results of the University of Michigan - Williamson Expedition to Colombia, 1916 - 1917. IV. Notes on species of the genus Heteragrion Selys with description of new species (Odonata). Occasional Papers Museum of Zoology, University of Michigan, 68, 1 - 87.

Figures

FIGURE 47. Heteragrion majus: (a) anterior view of head; (b) lateral view of pterothorax; (c, e) mediodorsal view of cercus; (d) dorsal view of cercus. ML: medial lobe; AP: apical portion. Figure e provided by Rosser Garrison and Natalia von Ellenrieder.