Tretogonia Melichar, 1926

Mejdalani, Gabriel, Domahovski, Alexandre C., Rendón-Mera, Diana I. & Cavichioli, Rodney R., 2019, Tretogonia Melichar (Hemiptera: Cicadellidae: Proconiini): two new species from South Brazil and a redescription of T. dentalis Emmrich, 1988, European Journal of Taxonomy 513, pp. 1-14 : 3

publication ID

https://doi.org/ 10.5852/ejt.2019.513

publication LSID

lsid:zoobank.org:pub:D4A665FE-4F4C-4BF8-8491-81CF086FAE8E

DOI

https://doi.org/10.5281/zenodo.5942756

persistent identifier

https://treatment.plazi.org/id/03BEF63F-FFD4-FF8C-FD9D-FD45DF9E188C

treatment provided by

Plazi

scientific name

Tretogonia Melichar, 1926
status

 

Genus Tretogonia Melichar, 1926 View in CoL

Tretogonia Melichar, 1926: 273 View in CoL (type species: Tettigonia pruinosa Walker, 1851 View in CoL , preoccupied (= Tretogonia notatifrons Melichar, 1926 View in CoL ), by original designation).

Remarks

According to Young (1968), Tretogonia belongs to the group of genera in which the hind leg meron is exposed when the forewings are at rest position. It can be recognized by the following combination of characters (characters (1) and (4) are proposed here for the first time as taxonomically useful): (1) antennal ledge with distinct dorsal and ventral carinae, in frontal and lateral views, (2) pronotum and forewings conspicuously pitted, each pit with small seta, (3) posterior margin of pronotum rounded and extending to scutoscutellar suture, (4) forewing brachial cell distinctly narrowed basally and (5) general coloration brown. In species of Tretogonia , the body is usually densely covered by brochosomes. The two new Brazilian species described here show the above-mentioned diagnostic features of Tretogonia . This genus is apparently monophyletic, as indicated by the morphological phylogenetic analysis of the Proconiini conducted by Mejdalani (2000). Synapomorphies of Tretogonia include the pronotum strongly produced posteriorly, the conspicuous pronotal and forewing pits, and the narrowed forewing brachial cell ( Mejdalani 2000).

The following species are currently recognized in this genus (distribution based on Young 1968, Cavichioli & Zanol 1991, Freytag & Sharkey 2002, McKamey 2007, Wilson et al. 2009, Dellapé 2016 and Takiya et al. 2018; an asterisk indicates species known only from females):

T. albicans (Walker, 1858) *. Brazil.

T. bergi Young, 1968 . Argentina, Brazil, Paraguay, Uruguay.

T. callifera Melichar, 1926 . Bolivia, Brazil, French Guiana, Peru, Suriname.

T. cinerea (Osborn, 1926) . Bolivia, Brazil.

T. conspersa Schmidt, 1928 . Colombia, Guyana, Panama, Venezuela.

T. conspicua Melichar, 1926 *. Ecuador.

T. costalimai Young, 1968 . Brazil, Guyana, Venezuela.

T. cribrata Melichar, 1926 . Argentina, Bolivia, Brazil, French Guiana, Peru.

T. dentalis Emmrich, 1988 . Argentina, Brazil (new record), Paraguay.

T. diminuta sp. nov. Brazil.

T. elegantula sp. nov. Brazil.

T. lateritia (Taschenberg, 1884) *. Brazil.

T. notatifrons Melichar, 1926 . Argentina, Bolivia, Brazil, Ecuador, French Guiana, Paraguay, Suriname. T. punctatissima Melichar, 1926 . Colombia, Ecuador, Peru, Venezuela.

T. tomentosa (Distant, 1908) . Ecuador.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Loc

Tretogonia Melichar, 1926

Mejdalani, Gabriel, Domahovski, Alexandre C., Rendón-Mera, Diana I. & Cavichioli, Rodney R. 2019
2019
Loc

Tretogonia

Melichar 1926: 273
1926
Loc

Tretogonia notatifrons

Melichar 1926
1926
Loc

Tettigonia pruinosa

Walker 1851
1851
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