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Family Delphacidae Leach, 1815

Subfamily Delphacinae Leach, 1815

Tribe Tropidocephalini Muir, 1915

Genus Macrocorupha Muir, 1926.

Type species (in original combination): Macrocorupha gynerii Muir, 1926.

Distribution

South America (Ecuador) (no map in FLOW)

 

Recognized species

There is a single described species currently placed in this genus.

Macrocorupha gynerii Muir, 1926 [Metcalf 1943: 102] – Ecuador (described from 2 females from near Tena, Ecuador). (Also Colombia)

Plant associations

Gynerium sagittatum (Aubl.) P. Beauv. (Poales: Poaceae: Panicoideae: Gynerieae) (Wildcane; cana-do-rio, cana-flecha, cana-frecha, ubá and cana-brava, tañil)

Economic Importance

Limited.

Recognition

Description of genus from Muir, 1926 (may be unfixed OCR errors)

“Head narrower than thorax; vertex much longer than broad (1.5 to 1), apex projecting well beyond eyes, rounded, gradually increasing in width to base sides nearly straight, a small keel around margin which is obscure at apex, a straight, median carina from middle to base. Length of frons twice the width at apex, base slightly narrower than apex, sides nearly straight, median carina simple, distinct; clypeus about as long as frons, tricarinate. First segment of of antenna longer than wide, second segment about twice the length of first; eyes in side view wider than long with a deep antennal sinus; carina on  gena distinct. Pronotum tricarinate, lateral carinae slightly curved, reaching hind margin; mesonotum tricarinate, carinae subparallel. Legs slender, hind basitarsus the same length as the other two together; spur shorter than basitarsus, fairly thin, subtectiform or concave on inner surface, a tooth at apex but none on hind margin. Tegmina long, fairly narrow apical cells forming about one-third the length; forking of Sc + R and Cu about level, near middle of tegmina. Superficially this genus has the appearance of Tropidocephala but the spur, the longer antennae, especially the first segment, longer and thinner legs and  the longer and compressed tegmina, all separate it from that genus. The spur is not quite typical of the tribe and it might be placed in the Delphacini with equal justice, except that it has no teeth on the hind margin.”

Macrocorupha species dorsal habitus, undescribed species from Colombia.

 

 

Macrocorupha gynerii (from Asche 1985) (Note: The specimen(s) Asche used for his drawings are from Tingo Maria, Peru.  It is only an assumption that this represents the same species that Muir, 1926, had from near Tena, Ecuador.)

Online resources

3I Interactive Keys and Taxonomic Databases.
GBIF.
EOL.
Discover Life.
FLOW.
BOLD. (Genus not present, link to family).

Molecular resources

There are no data on this genus in Genbank or BOLD (as of 18 Feb. 2020).

Selected references

Asche, M. 1985. Zur Phylogenie der Delphacidae Leach, 1815 (Homoptera: Cicadina: Fulgoromorpha). Marburger Entomologische Publikationen Marburger Entomologische Publikationen 2(1): 1-398 AND 2(2): 399-910.

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.

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. [p. 102]

Muir, F.A.G. 1915b-e. A contribution towards the taxonomy of the Delphacidae. Canadian Entomologist 47: 208-212 (Muir 1915b), 261-270 (c), 296-302 (d), 317-320 (e). [noted p 269].

Muir, F.A.G. 1926b. 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, plates 1-5.