Ugyops inermis Distant, 1920

Gębicki, Cezary, Walczak, Marcin, Krupa, Piotr & Kalandyk-Kołodziejczyk, Małgorzata, 2021, Ugyopini of New Caledonia (Hemiptera: Fulgoromorpha: Delphacidae: Asiracinae) with a description of Notuchus linnavuorii sp. nov., Bonn zoological Bulletin 70 (1), pp. 97-113 : 104-106

Ugyops inermis Distant, 1920

( Figs 5A–B , 6A , 7A–B , 8A–B , 9A–B , 12A–B )

Ugyops inermis is an endemic species from New Caledonia ( Distant 1920). Individuals of this species are about 5–7 mm long. The biology of the species remains unknown. Perhaps it is a nocturnal species. During the study in New Caledonia, both males and females came to the light sources ( Fig. 5A–B ). Our text and illustrations complete Distant’s description (1920), which included a short and very inaccurate diagnosis of this taxon, without drawings.

Material examined

1 ♀ ( Fig. 5A ) // Ugyops inermis Distant // C. Gębicki det. 2015; New Caledonia (S) // 21 ° 37.632’ S, 165 ° 45.830’ E // Farino env., rainforest, at light // Les Grandes Fougeres // 11.03. 2008, 467 m // netting, beating // leg. R. Dobosz & T. Blaik ; 5915/17537 // coll. Upper Silesian Museum // ( USMB) Bytom, Poland . – 1 ♂ ( Fig. 5B ) // Ugyops inermis Distant // C. Gębicki det. 2015; New Caledonia (S) 106 Cezary Gębicki et al.

// 22 ° 10.648’ S, 166 ° 30.430’ E // Mt Koghi rainforest // 12.04. 2008, 480 m // at light // leg. R. Dobosz & T. Blaik; 5915/18481 // coll. Upper Silesian Museum // ( USMB) Bytom, Poland .

Description of the external features of U. inermis Vertex separated from large occiput by horizontal groove ( Fig. 7A ). Frons with two very indistinct keels situated close to each other at apical and basal parts ( Figs 6A , 7B ). Scapus evenly covered with short setae, pedicellus with numerous sensilla placoidea, among which there are fine setae embedded in cavities and arched towards the apex ( Fig. 8A ). Less numerous and irregularly distribut- ed spines are embedded in cavities surrounded by cuticular fringe. Round or oval platelles are composed of several dozen hooked setae pointed towards antennal tip. Each platella is surrounded by cuticular crown divided into teeth, which are bent inwards ( Fig. 8B ). Rostrum reaches beyond the line between hind coxae; its second segment is about three times longer than its apical segment.

Coloration of dorsal surface. Tip of the head in dorsal view with two distinct (especially in females) black spots separated by pale keel. Pronotum with four dark spots (less visible in males). Scutum with broad central stripe, uniformly pigmented with yellow ridges in male. Hind coxae uniformly yellowish, post-tibial calcar and tarsi pale (in male calcar black and apical part of tibiae and tarsi greenish). Along claval anal vein A2, two dark spots (well visible in male), bases of veins R and especially M and Cu with white sections (less visible in male), longitudinal veins uniformly yellow at apical part (greenish in male) ( Fig. 5A–B ).

Coloration of frons. Central and lateral carinae of frons uniformly yellowish. Surfaces between keels with five longitudinal dark patches (median patch is the longest one) in the lower part and a few irregular spots in the lateral and apical part. Carinae of clypeus yellowish, the area between keels darker in the upper part of clypeus.

The scapus uniformly pale, second segment with two dark stripes (similar to other species of this genus) ( Fig. 6A ).

Morphology of male genitalia of U. inermis

Posterior margin of pygofer almost straight, with narrow and extremely shallow incisions for genital styles (one-sixth the length of pygofer – Fig. 12A–B ). Anal tube relatively short, slightly wider than half its length (lateral view – Fig. 12A ). Genital style distinctly broad- er apically, with a short, rounded apex, which is bent to the outer side. Inner margin of genital style with short and strong teeth apically ( Fig. 9B ). Apexes of connective short, rounded and directed upwards (in form of a shallow “Y” – Fig. 9B ). Connective shaft almost as thick as apical processes. Theca of aedeagus well developed with two distinct lobe-like processes at the apex. The shaft of aedeagus almost evenly thick along its length, in circular form (regular) with a characteristic straight process, which is broadened and rounded apically. Apex of aedeagus membranous, granular in structure without spines or processes, endowed with a subapical gonopore ( Fig. 9A )

Figures

Fig. 5. A. Ugyops inermis Distant, 1920, ♀. B. U. inermis Distant, 1920, ♂. C. Ugyops nemestrinus, ♂. D. Ugyops taranis Fennah, 1964, ♂.

Fig. 6. Heads in frontal view. A. Ugyops inermis Distant, 1920, ♂. B. Ugyops nemestrinus Fennah, 1969, ♂. C. Ugyops taranis Fennah, 1964, ♂.

Fig. 7. Representatives of the genus Ugyops Guérin-Méneville, 1834. A, C, E. Heads, prothorax and scutellum, dorsal view; SEM. B, D, F. Heads in front view; SEM. A–B. Ugyops inermis Distant, 1920, ♂. C–D. Ugyops nemestrinus Fennah, 1969, ♂. E–F. Ugyops taranis Fennah, 1964, ♂.

Fig. 8. Antennae of representatives of the genus Ugyops Guérin-Méneville, 1834 from New Caledonia. A–B. Ugyops inermis Distant, 1920, ♂. C–E. Ugyops nemestrinus Fennah, 1969, ♂. F–G. Ugyops taranis Fennah, 1964, ♂. D. Distal part of labium (U. nemestrinus). Abbreviations: SC = scapus; Pe = pedicellus; CiS = ciliate structure; CS = conoidal structure; SP = sensilla placoidea; ST = sensilla trichoidea; La = labium.

Fig. 9. Ugyops inermis Distant, 1920, male genitalia. A. Aedeagus lateral view. B. Gonostyles with connective, ventral view.

Fig. 12. External male genitalia. A, D–E. Lateral views. B–C, F. Ventral views. A–B. Ugyops inermis Distant, 1920. C–D. Ugyops nemestrinus Fennah, 1969. E–F. Ugyops taranis Fennah, 1964.