Friday, January 27, 2023

[Entomology • 2023] Parampelomyia yukawai • Another New Gall Midge Genus (Diptera: Cecidomyiidae) associated with Vitaceae, with Description of A New Species developing in Flower Buds of the Porcelain Berry in Japan


Parampelomyia yukawai Elsayed and Tokuda,

in Elsayed, Ichita & Tokuda, 2023.
photographs by A. K. Elsayed  twitter.com/Ayman77_77 

Abstract
We describe a gall midge Parampelomyia yukawai Elsayed and Tokuda gen. nov. sp. nov. belonging to the subtribe Schizomyiina (Diptera: Cecidomyiidae: Asphondyliini) based on an integrative taxonomic study. This species forms barely-swollen flower bud galls on the porcelain berry Ampelopsis brevipedunculata var. heterophylla (Vitaceae) in Japan. The new genus is distinguishable from all known schizomyiine genera by tarsomere I lacking a ventroapical extension, the bulbous base of the protrusible portion of the ovipositor, the fused and sclerotized female cerci, the bidentate gonostylus, and the larval terminal abdominal segment that bears two corniform, two asetose and six setose papillae. The new genus is compared with and separated from the similar genera Schizomyia and Ampelomyia morphologically and phylogenetically.

Keywords: Ampelopsis, Asphondyliini, grape, Schizomyiina, phylogeny, integrative taxonomy

Parampelomyia yukawai sp. nov. 
 A Flower bud gall on Ampelopsis brevipedunculata var. heterophylla (Vitaceae). B Mature larva in a cut-open flower bud. C Freshly emerged female. D Freshly emerged male.
(photographs by A. K. Elsayed)

Parampelomyia Elsayed and Tokuda, 2023, gen. nov.
 
Parampelomyia yukawai Elsayed and Tokuda, sp. nov.

Derivatio nominis: The generic name is composed of the Latinized Greek word, para, meaning near to, and the grape-associated gall midge genus name Ampelomyia.


Ayman Khamis Elsayed, Tadao Ichita and Makoto Tokuda. 2023. Parampelomyia, Another New Gall Midge Genus (Diptera: Cecidomyiidae) associated with Vitaceae, with Description of A New Species developing in Flower Buds of the Porcelain Berry in Japan. Arthropod Systematics & Phylogeny. 81: 165-177. DOI: 10.3897/asp.81.e86898