Genus Calkinodelphax Bartlett and Wallner 2025

[back to North American Delphacidae]

Family Delphacidae Leach, 1815

Subfamily Delphacinae Leach, 1815

Tribe Delphacini Leach, 1815

Genus Calkinodelphax Bartlett and Wallner, 2025

Type species Liburnia reducta Van Duzee 1907: 49

Distribution

USA: Florida, Central America, and the Caribbean.

Distribution of Calkinodelphax reductus. Data from TriTrophic Thematic Collection Network (black circles), except
lectotype (red triangle), plotted with GPS of Kingston, Jamaica
Distribution of Calkinodelphax reductus. Data from TriTrophic Thematic Collection Network (black circles), except
lectotype (red triangle), plotted with GPS of Kingston, Jamaica.

Recognized species

This genus is monotypic

Calkinodelphax reductus (Van Duzee 1907) – USA: Florida; Mexico (Veracruz, Puebla, San Luis Potosi), Belize, Costa Rica, Panama, Honduras, Nicaragua, French Guiana, Puerto Rico, Jamaica, Cuba.
= Liburnia (?) reducta Van Duzee 1907: 49 (original combination).
= Megamelus reductus (Van Duzee, 1907), combination by Crawford 1914: 629.
= Delphacodes reductus (Van Duzee, 1907), combination by Metcalf 1943: 502.
= Pissonotus striolus Osborn 1935: 247, synonym by Bartlett & Wallner 2025: 10.
= Delphacodes cornuta Beamer 1948: 96, synonym by Bartlett & Wallner 2025: 10.
= Euidella fasciatella Caldwell and Martorell 1951: 190 (nec. Osborn 1935),
= Euides fasciatella auctorum (nec. Osborn), combination by Kennedy et al. 2012: 404.
= Calkinodelphax reductus (Van Duzee 1907), combination by Bartlett & Wallner 2025: 10.

Plant Associations

Collected in mesic grassy areas.

Recognition

General body coloration pale orangish-brown, with dark brown markings on the thoracic nota between and lateral of carinae; macropterous forewing with irregular diffuse markings, especially along MP and CuA veins and in cells of clavus; brachypterous with forewings truncate, revealing ~4 abdominal terga, deep brown except margins and clavus. Male terminalia with gonostyli arched, with apices inflected laterally (giving an overall appearance of a horseshoe). Aedeagus simple, declinately arched, without processes. Diaphragm bearing a large, blunt, strongly sclerotized, and posteriorly projected armature. Anal tube bearing pair of relatively short, widely separated, diverging processes.

Lectotype of Liburnia reducta Van Duzee, 1907. A) Dorsal habitus. B) Lateral habitus. C) Frontal view. D) Labels
Lectotype of Liburnia reducta Van Duzee, 1907. A) Dorsal habitus. B) Lateral habitus. C) Frontal view. D) Labels.
Calkinodelphax reductus (Van Duzee) from Costa Rica (A-C) and Belize (D-F). A) Dorsal habitus, macropters. B)
Lateral habitus, macropterous. C) Frontal view, macropterous. D) frontal view, brachypterous. E) Dorsal habitus, brachypterous.
F) Lateral habitus, brachypterous
Calkinodelphax reductus (Van Duzee) from Costa Rica (A-C) and Belize (D-F). A) Dorsal habitus, macropters. B)
Lateral habitus, macropterous. C) Frontal view, macropterous. D) frontal view, brachypterous. E) Dorsal habitus, brachypterous.
F) Lateral habitus, brachypterous
Male terminalia Calkinodelphax reductus (Van Duzee) (Belize). A) Male terminalia, caudal view. B) Male terminalia,
lateral view. C) Aedeagus, lateral view. D) Aedeagus, caudal view. E) Left gonostylus, semi-lateral (widest) view. F) Left
gonostylus, caudal view
Male terminalia Calkinodelphax reductus (Van Duzee) (Belize). A) Male terminalia, caudal view. B) Male terminalia,
lateral view. C) Aedeagus, lateral view. D) Aedeagus, caudal view. E) Left gonostylus, semi-lateral (widest) view. F) Left
gonostylus, caudal view
Holotype of Delphacodes cornuta Beamer 1948. A) Dorsal habitus. B) Frontal view. C) Lateral habitus. D) Labels
Holotype of Delphacodes cornuta Beamer 1948. A) Dorsal habitus. B) Frontal view. C) Lateral habitus. D) Labels
Euides fasciatella illustrated in Caldwell and Martorell 1951
illustration of ‘Euidella’ fasciatella from Caldwell and Martorell 1951

Online resources

TaxonPages.
iNaturalist. [Taxon not yet present]

Molecular resources
none.

Selected References

Bartlett, C.R. & L.L. Deitz. 2000. Revision of the New World delphacid planthopper genus Pissonotus (Hemiptera: Fulgoroidea).
Thomas Say Publications in Entomology: Monographs. Entomological Society of America; Lanham, MD. 234 p.

Bartlett, C.R. & A.M. Wallner. 2025. A new genus and new synonyms for Liburnia reducta Van Duzee, 1907 (Hemiptera: Auchenorrhyncha: Delphacoidea: Delphacidae). Insecta Mundi 1121: 1–16 pp

Bartlett, C.R., L.B. O’Brien & S.W. Wilson. 2014. A review of the planthoppers (Hemiptera: Fulgoroidea) of the United States.
Memoirs of the American Entomological Society 50: 1–287.

Beamer, R.H. 1948. Some new species of Delphacodes (Homoptera: Fulgoridae: Delphacinae), Part IV. Journal of the Kansas
Entomological Society 21: 96–110.

Caldwell, J.S. & L.F. Martorell. 1951 [dated 1950]. Review of the Auchenorynchous [sic] Homoptera of Puerto Rico. Part II. The
Fulgoroidea except Kinnaridae. Journal of Agriculture of the University of Puerto Rico 34: 133–269.

Crawford, D.L. 1914. A contribution toward a monograph of the homopterous insects of the family Delphacidae of North and
South America. Proceedings of the United States National Museum 46: 557–640 + 6 pl.

Della Giustina, W. 2019. Les Delphacidae de France et des pays limitrophes (Hemiptera, Fulgoromorpha). Faune de France
100, 2 volumes. Fédération Française des Sociétés de Sciences Naturelles; Paris, France. 832 p.

Fennah, R.G. 1959. Delphacidae from the Lesser Antilles (Homoptera: Fulgoroidea). Bulletin of the British Museum (Natural
History) 8: 224–265.

Fowler, W.W. 1905. Order Rhynchota. Suborder Hemiptera-Homoptera. (Continued). Biologia Centrali-Americana 1: 125–
139.

Holzinger, W.E, I. Kammerlander & H. Nickel. 2003. Fulgoromorpha, Cicadomorpha excluding Cicadellidae. Volume 1. The
Auchenorrhyncha of Central Europe. Brill Academic Publishing; Leiden, Netherlands. xv + 673 p.

Kennedy, A.C., C.R. Bartlett & S.W. Wilson. 2012. An annotated checklist of the delphacid planthoppers (Hemiptera: Delphacidae) of Florida with the description of three new species and the new genus, Meristopsis. Florida Entomologist 95:
395–421. https://doi.org/10.1653/024.095.0223

Leach, W.E. 1815. Entomology. p. 57–172. In: Brewster D. The Edinburgh encyclopedia, volume 9. William Blackwood; London,
UK. 764 p.

Metcalf, Z.P. 1943. General catalogue of the Hemiptera. Fascicle IV, Fulgoroidea, Part 3, Araeopidae (Delphacidae). Smith
College; Northampton, MA. 552 p.

Muir, F.A.G. 1926. Contributions to our knowledge of South American Fulgoroidea (Homoptera). Part I. The family Delphacidae.
Experiment Station of the Hawaiian Sugar Planters’ Association, Entomological Series, Bulletin 18: 1–51 + 5 pl.

Muir, F.A.G, & W.M. Giffard. 1924. Studies in North American Delphacidae. Bulletin of the Hawaiian Sugar Planters Association
Division of Entomology 15: 1–53.

Osborn, H. 1935. Insects of Porto Rico and the Virgin Islands. Homoptera (excepting the Sternorhynchi). Scientific Survey
of Porto Rico and the Virgin Islands 14: 111–260.

Remes-Lenicov, A.M.M. de, & M.E. Brentassi. 2017. New taxa and combinations in Neotropical Delphacini (Hemiptera: Fulgoroidea). Zootaxa 4281: 280–290. https://doi.org/10.11646/zootaxa.4281.1.26

Van Duzee, E.P. 1907. Notes on Jamaican Hemiptera: A report on a collection of Hemiptera made on the island of Jamaica in
the spring of 1906. Bulletin of the Buffalo Society of Natural Sciences 8: 3–79.