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Contents
Family Delphacidae Leach, 1815
Subfamily Delphacinae Leach, 1815
Tribe Tropidocephalini Muir, 1915
Genus Columbiana Muir, 1919
Type species (in original combination): Columbiana lloydi Muir, 1919.
Distribution
South America
Distribution of Columbiana from FLOW (as of 18 Feb 2020, missing Colombia)
Recognized species
There are two species currently placed in this genus.
Columbiana carasi Fennah, 1963 – Peru
Columbiana lloydi Muir, 1919 [Metcalf 1943: 120] – Columbia
Plant associations
None reported – expected to be bamboo feeders, but also associated with arboresent grasses.
Economic Importance
Limited.
Recognition
This photo is of an undescribed Columbiana from Colombia that I took for Bartlett (2010). Tropidocephalini lack teeth on the calcar and all the New World taxa have strongly asymmetrical genitalia. The Columbiana I have seen tend to be uniformly colored species, and both of the described species have ventral processes on the opening of the pygofer, which I understand to be a genus-level feature. Unlike Columbisoga, the lateral carinae of the pronotum curve laterally and do not reach the hind margin of the pronotum.
Columbiana sp. – an undescribed species from Colombia.
Columbiana carasi Fennah, 1963 (from Fennah, 1963)
Columbiana lloydi Muir 1919 (from Muir 1919)
Molecular resources
There are no data on this genus in Genbank or BOLD.
Selected references
Bartlett, C. R. 2010 (dated 2009). A new genus of New World Tropidocephalini (Hemiptera: Delphacidae: Delphacinae), with the description of two new species. Entomological News 120(4): 387-396.
Fennah, R. G. 1963. New Delphacidae (Homoptera: Fulgoroidea) from South America and West Africa. Annals and Magazine of Natural History 13(5): 689-700.
Leach, W. E. 1815a. Entomology. The Edinburg encyclopedia; conducted by David Brewster 9: 57-172. (family Delphacidae p. 125).
Metcalf, Z. P. 1943. General Catalogue of the Hemiptera. Fascicle IV, Fulgoroidea, Part 3, Araeopidae (Delphacidae). Smith College, Northhampton, Massachusetts. 552 pp.
Muir, F.A.G. 1915b-e. A contribution towards the taxonomy of the Delphacidae. Canadian Entomologist 47: 208-212, 261-270, 296-302, 317-320.
Muir, F.A.G. 1919b. Some New American Delphacidae. Canadian Entomologist 51(2): 35-39.
