Family Delphacidae

Subfamily Delphacinae 

Tribe Tropidocephalini

Distribution: South America

Type species (in original combination): Columbiana lloydi Muir, 1919.

Recognized species

There are two species currently placed in this genus.

Columbiana carasi Fennah, 1963 - Peru
Columbiana lloydi Muir, 1919 - Columbia

Hosts:

None reported - expected to be bamboo feeders.

Economic Importance: Limited.

Recognition

This photo is of an undescribed Columbiana from Columbia 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. 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 Columbia.

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.

Muir, F.A.G. 1919b. Some New American Delphacidae. Canadian Entomologist 51(2): 35-39.