What type of study is this?

This is a Literature Review study (also classified as: Observational).

August 27, 2025

Review of the microleafhopper subgenus Matsumurasca (Solanasca) Ghauri, 1974 (Hemiptera: Cicadellidae) from Costa Rica, with description of a new species and its population dynamics in papaya crops

Key Points

A new species, Matsumurasca judokuatare, is described and illustrated, enhancing biodiversity knowledge.
The study reports first records of M. laceiba from Costa Rica and M. stevensi from Mexico, expanding their distribution ranges.
Observational analysis over fourteen months reveals population dynamics of the new taxon in papaya crops, suggesting economic relevance.
A key to all Matsumurasca species in Costa Rica and a distributional map are provided for identification support.

Abstract

The taxonomy of the microleafhopper subgenus Matsumurasca (Solanasca) Ghauri, 1974 in Costa Rica is revised. A new species, Matsumurasca (Solanasca) judokuatare Arrieta-Arrieta & Pinedo-Escatel sp. nov., is described and illustrated from Puntarenas and Limón provinces. The new species can be distinguished from other Neotropical species by the following combination of features: rounded anterior margin of crown, apex of aedeagus wide and square-shaped, gonoduct medially wide, and basal aedeagal processes slender. In addition, M. laceiba (Ross & Cunningham, 1960) and M. stevensi (Young, 1953) are reported for the first time from Costa Rica and Mexico, respectively. A key to all species of Matsumurasca known to occur in Costa Rica and a distributional map are provided. The population dynamics of the new taxon in papaya crops throughout fourteen months of monitoring is discussed.

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