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Contents
Family Delphacidae Leach, 1815
Subfamily Asiracinae Motschulsky, 1863
Tribe Platysystatini Emeljanov, 1995
Genus Platysystatus Muir, 1930: 208.
Distribution
Brazil.
Distribution of Platysystatus from FLOW (as of 4 Feb 2020).
Type species (in original combination): Platysystatus brunneus Muir, 1930.
Recognized species
There are two species in this genus.
Platysystatus brunneus Muir, 1930: 210 – Described from a single male specimen from Rio Negro, Sao Gabriel, Brazil (Jan. 1924).
Platysystatus itapetingus Asche, 1983: 109 – Described from a single specimen Itapetinga, Bahia State, Brazil (Nov. 1969).
I have an undescribed species that probably belongs in this genus.
Plant associations
None.
Economic Importance
Limited.
Recognition
The very wide and short vertex, separated from the frons with a carina, and the 5 carinate mesonotum (with intermediate carinae serpentine) are features of the tribe.
A new species of Platysystatus was described by Asche 1983a. Equasystatus was described by Asche 1983b. Platysystatus is very similar to Equasystatus and best separated by antennae rounded in cross-section (this is hard to see; flattened in Equasystatus); frons in frontal view convex between eye and laterally projecting beneath eyes to cover (or nearly cover) the base of scape (frons weakly convex and weakly projecting laterally beneath eyes, not covering base of scape in Equasystatus.
Platysystatus brunneus– holotype – Thanks to Gunvi Lindberg (Swedish Museum of Natural History, Stockholm, Sweden) for the photos.
Platysystatus brunneus – holotype – with labels
Another specimen, probably this species
Platysystatus brunneus
Platysystatus brunneus
Platysystatus brunneus
Platysystatus brunneus (A-top) and Platysystatus itapetingus (B) from Asche 1983
Platysystatus itapetingus from Asche 1983
Molecular resources:
At this time, neither Genbank or Bold have any molecular resources for this genus.
Selected references
Asche, M. 1983a. Zur Kenntnis der Gattung Platysystatus Muir, 1930 (Homoptera Auchenorrhyncha Fulgoromorpha Delphacidae). Marburger Entomologische Publikationen 1(8): 107-126.
Asche, M. 1983b. Aufgliederung der Asiracinen-Gattung Punana Muir, 1913: Equasystatus gen. nov. aus Equador und Neopunana gen. nov. von den Karibischen Inseln (Homoptera Auchenorrhyncha Fulgoromorpha Delphacidae). Marburger Entomologische Publikationen 1(8): 127-166.
Asche, M. and M. D. Webb. 2013. A remarkable new asiracine delphacid planthopper from Ecuador (Hemiptera, Fulgoroidea, Delphacidae). Deutsche Entomologische Zeitschrift 60(2): 163-169.
Emeljanov, A. F. 1995 (1996). On the question of the classification and phylogeny of the Delphacidae (Homoptera, Cicadina), with reference to larval characters. Entomologicheskoe Obozrenie 74(4): 780-794 [in Russian, English translation in Entomological Review 75(9):134-150].
Leach, W. E. 1815a. Entomology. The Edinburg encyclopedia; conducted by David Brewster 9: 57-172. (family Delphacidae page 125).
De Motschulsky, V. I. 1863. Essai d’un catalogue des insectes de l’ile de Ceylan. Bulletin de la Société Impériale des Naturalistes de Moscou 36: 1-153. (p. 108).
Muir, F.A.G. 1930f. On some South American Delphacidae (Homoptera, Fulgoroidea). Entomologisk Tidskrift 51(3-4): 207-215.
