Eyarinella, Zettel & Laciny, 2021

Zettel, Herbert & Laciny, Alice, 2021, The taxonomy of some unusual Microveliinae (Hemiptera: Heteroptera: Veliidae) from India, Acta Entomologica Musei Nationalis Pragae 61 (2), pp. 517-527 : 520-521

publication ID

https://doi.org/ 10.37520/aemnp.2021.029

publication LSID

lsid:zoobank.org:pub:70C7FD52-9D69-4401-ADE8-0D043D39BB2C

DOI

https://doi.org/10.5281/zenodo.5821257

persistent identifier

https://treatment.plazi.org/id/D02C87B8-1F7B-FF9B-74C9-0972FE88AA26

treatment provided by

Plazi

scientific name

Eyarinella
status

gen. nov.

Eyarinella gen. nov.

( Figs 3, 4 View Figs 1–4 , 16–24 View Figs 16–24 )

Type species. Eyarinella robusta sp. nov.

Diagnosis. Body stout, ovate ( Figs 3, 4 View Figs 1–4 ). Posterior of head deeply inserted in anterior part of pronotum ( Fig. 16 View Figs 16–24 ). Eyes moderately large ( Figs 16, 17 View Figs 16–24 ). Antenna long and slender, about two thirds of body length; antennomere I ( Fig. 16 View Figs 16–24 ) 0.9 times as long as head length; relative lengths of antennomeres: IV> III ≧ I> II. Pronotum convexly rounded posteriorly ( Fig. 16 View Figs 16–24 ). Lateral evaporatorium small, situated in ventral half of metapleuron. Legs stout. Claws preterminal, their apices not reaching apex of tarsus. – Male: Propleuron with a sharp ridge behind eye ( Fig. 17 View Figs 16–24 ), in dorsal view appearing tooth-like. Femora stout ( Figs 18, 19 View Figs 16–24 ), otherwise unmodified. Protibia unmodified; protibial grasping comb extremely short ( Fig. 18 View Figs 16–24 ), restricted to a short ear-shaped spur at apex of tibia. Mesotibia without grasping comb. Pregenital abdomen without projections. Segment 8 moderately elongated ( Fig. 21 View Figs 16–24 ). Pygophore ( Fig. 22 View Figs 16–24 ) distally upcurved and with concave posterior margin. Proctiger ( Fig. 23 View Figs 16–24 ) narrow, tongue-shaped; apex narrowly rounded. Parameres ( Fig. 24 View Figs 16–24 ) symmetrical, curved, very long and slender. – Female: Genitalia situated in a posterior opening of segment 7.

Comparative notes. The stout body distinguishes Eyarinella gen. nov. from all other Oriental genera of Microveliinae, except from Geovelia and a few species of Microvelia ( Microvelia shows a great variation in body shape). However, in Microvelia the antenna is much shorter and stouter, and the genitalia of females are less protruding. Geovelia differs from Eyarinella gen. nov. in several characters, e.g., by a short head that is not deeply embedded in a concavity of the pronotum, by large eyes (e.g., Figs 5, 6 View Figs 5–8 ), and by subterminal claws. The long antenna of Eyarinella gen. nov. resembles several genera of Microveliinae with a hygropetric lifestyle, e.g., Baptista Distant, 1903 , Aquulavelia Thirumalai, 1999 , and Thirumalaia gen. nov. The male of Eyarinella gen. nov. possesses the following two unique characters: the sharp ridge anteriorly on propleuron ( Fig. 17 View Figs 16–24 ), and the rudimentary protibial grasping comb ( Fig. 18 View Figs 16–24 ). Etymology. The generic name is dedicated to Dr. E. Eyarin Jehamalar of the Zoological Survey of India for her numerous valuable publications on Indian water bugs. Gender: feminine.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Veliidae

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