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Family Delphacidae Leach, 1815

Subfamily Delphacinae Leach, 1815

Tribe Saccharosydnini Vilbaste, 1968

Genus Pseudomacrocorupha wagneri Muir, 1930

Distribution

South temperate South America (no map in FLOW).

Type species (in original combination): Pseudomacrocorupha wagneri Muir, 1930.

Recognized species

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

Pseudomacrocorupha wagneri Muir, 1930 – Paraguay; Argentina (Chaco, Tucumán, Entre Rios (Paraná, Concordia); Santa Fe (El Rabón, Reconquista); Uruguay

Plant associations

According to Rossi Batiz (2014): On weeds bordering orange Valencia (Citrus sinensis).

Economic Importance

Probably limited.

Recognition

This genus and Lacertinella have a flattened head and broad frons. The genitalia were illustrated by Muir (1930), but it appears that the genital microvial for the holotype is now empty.

This is the only reported specimen of this species of which I am aware; however, I have seen a series of specimens of this species from recent collections from Argentina, so the species is probably greatly underreported rather than extremely rare.

Rossi Batiz (2014):  “Holotype male macropter. Yellowish; Greenish between the frontal submedian carinae, the lateral portions of the vertex and lateral carinae, between the carinae of the pronotum and the lateral margins and between the carinae of the mesonotum; Pygofer and brown parameres; Antennae with a black line in each segment from the base to the apex. Anterior hyaline wings, slightly yellowish, clear veins in the chorion; fuscous or black on the nodal line and apical veins. In lateral and frontal view of the pygofer the parameres are observed; The anal segment is short, without armor. The aedeagus was not dissected and could not be seen. ”
Dimensions: LC 2.7 mm; LT 2.9 mm; LV 1.6 times the width at the base and equal to the pronotum ”

Muir 1930, description of genus “The shape of the head and thorax and the carination is similar to that of Macrocorupha Muir but the head and thorax is longer and narrower, the length being about twice the width of the mesonotum. Base of frons slightly rounded, slightly narrower than base, sides nearly straight, slightly constricted between the
eyes. Diagonal carina on gena distinct. No median carina on clypeus, laterals obscure. Antennae reaching to base of clypeus, first segment very short, as broad as long, length of second segment twice the width, slightly more than twice the length of first, thicker than the first. Hind basitarsus thin, slightly longer than the other two together; spur not so long as the basitarsus. cultrate, thick, with about fourteen teeth on the hind margin. Tegmina
long and narrow, the corium being about 3 times the length of the membrane; Sc+R and M forking at the nodal line, Cu forking a little distad of the middle of the corium.”

Pseudomacrocorupha wagneri holotype (Photos courtesy of Gunvi Lindberg, Swedish Museum of Natural History).

  

Pseudomacrocorupha wagneri from Argentina (IHNS specimen)

Male

Female

Molecular resources

There are no data on this genus in Genbank or BOLD.

Selected references

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. 1930f. On some South American Delphacidae (Homoptera, Fulgoroidea). Entomologisk Tidskrift 51(3-4): 207-215.

Rossi-Batiz, M. F. 2014. Taxonomía, Distribución y Biología de la tribu Saccharosydnini (Insecta-Hemiptera-Fulgoromorpha). Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina. Doctoral Thesis.

Vilbaste, J. 1968. K faune tsikadovykh Primorskogo kraia. [Über die Zikadenfauna des Primorje Gebietes.] Valgus, Tallin, Estonia.