Ophiogomphus, Lieftinck, 1964

Ngo, Quoc Phu & Nguyen, Minh Ty, 2021, The genus Ophiogomphus Lieftinck, 1964 in Vietnam, with descriptions of the female of O. minimus Karube, 2014 and O. phantoani sp. nov. (Odonata: Gomphidae), Zootaxa 5061 (1), pp. 134-144 : 141-142

publication ID

https://doi.org/ 10.11646/zootaxa.5061.1.6

publication LSID

lsid:zoobank.org:pub:AED1C537-0DEF-4356-BDE9-E590A9EBCDD3

DOI

https://doi.org/10.5281/zenodo.5699207

persistent identifier

https://treatment.plazi.org/id/03A8552C-1B47-844B-FF32-FA23FA7434E8

treatment provided by

Plazi

scientific name

Ophiogomphus
status

 

Key to the males and females of Ophiogomphus View in CoL species of Vietnam

Males

1 Anterior hamulus with anterior branch long and slender occupying about 2/3 of anterior hamuli length ( Fig. 20 View FIGURES 20–27 ); basal hamulus tooth with a weakly developed................................................................ longihamulus View in CoL

- Anterior hamulus with anterior branch comparatively short and broad, occupying about a half of anterior hamulus length ( Figs 22, 24, 26 View FIGURES 20–27 ); basal hamulus tooth broader and forming a triangular lobe........................................... 2

2 Posterior hamulus in lateral view curvilinear, narrowed apically ending in a narrow spatulate lobe; cornua of glans short, branches widely separated apically ( Fig. 27 View FIGURES 20–27 ); larger species (Abdomen: 46 mm; Hw 37 mm)..................... sinicus View in CoL

- Posterior hamulus in lateral view hook-shaped, stockier apically ending in a thicker spatulate lobe ( Figs 22, 24 View FIGURES 20–27 ); cornua of glans long, widely, deeply incised, U- or V-shaped ( Figs 23, 25 View FIGURES 20–27 ); smaller species (Abdomen: 37–39 mm; Hw 29–31.5 mm)...... 3

3 Lobe of penis vesicle strongly protruded ventrally. Cornua of glans short, U-shaped ( Fig. 23 View FIGURES 20–27 )................... minimus View in CoL

- Lobe of penis vesicle short in ventrally. Cornua of glans long, V-shaped ( Fig. 25 View FIGURES 20–27 )........................... phantoani View in CoL

Females

1 Vulvar lamina triangularly excavated at apex ( Figs 29, 35 View FIGURES 28–35 )..................................................... 2

- Vulvar lamina with lobes approximate or narrowly U-shaped ( Figs 31, 33 View FIGURES 28–35 )........................................ 3

2 Vulvar lamina nearly as long as S9, lobes widely separated apically ( Fig. 29 View FIGURES 28–35 )............................ longihamulus View in CoL

- Vulvar lamina half as long as S9 ( Fig. 35 View FIGURES 28–35 ).............................................................. sinicus View in CoL

3 Vulvar lamina pointed in apex; occiput with two widely separated, serrated, sharp marginal projections ( Figs 32, 33 View FIGURES 28–35 )................................................................................................... phantoani View in CoL

- Vulvar lamina incised apically; occiput with two erect, rounded marginal projections ( Figs 30, 31 View FIGURES 28–35 )............... minimus View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Odonata

Family

Gomphidae

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF