Species Nycheuma nilotica Linnavuori, 1973

Museums

Regional Maps

• Nycheuma nilotica Linnavuori, R.E. 1973. Hemiptera of the Sudan, with remarks on some species of the adjacent countries. 2. Homoptera Auchenorrhyncha: Cicadidae, Cercopidae, Machaerotidae, Membracidae and Fulgoroidea. Notulae Entomologicae 53: 65-137 [105].
• Nycheuma coctum Yang, C.T. 1989. Delphacidae of Taiwan II (Homoptera: Fulgoroidea). National Science Council Special Publications, Taiwan 6: 1-334 [98].

  Type data:

   Holotype NCHU ♂ (coll: C.T. Yang, 10.ix.1984), Pingtung, Pingtung Hsien, Taiwan.

Taxonomic Decision for Synonymy

• Hou, X.-H. & Chen, X.-S. 2014. Revision of the planthopper genus Nycheuma Fennah (Hemiptera, Fulgoromorpha, Delphacidae). ZooKeys 462: 47-57

Introduction

This species was added to the Australian fauna by Bellis et al. (2013) from several localities from the Wet Tropics of Queensland to Kununurra in Western Australia.

Distribution

States

Northern Territory, Queensland, Western Australia

IBRA and IMCRA regions

IBRA

NT, Qld, WA: Darwin Coastal (DAC), Victoria Bonaparte (VB), Wet Tropics (WT)

Other Regions

Torres Strait Islands terrestrial, marine & freshwater

Distribution References

Ecological Descriptors

All stages: phloem feeder.

Diagnosis

General color pale yellowish brown. Apex of first antennal segment and base of second, abdomen and pygofer brown, metapleura with large rounded brown spot. Tegmina hyaline, with brown marking on hind margin near end of clavus, anterior area of Cu, on ends of Sc1 , Sc2,, wider on R1, narrower on Rs, oblique area along posteroapical area, reaching to end of M1 except for 3 hyaline areas. Vertex wider at base than long submedially about 1.1 : 1, at apex as wide as at base, basal compartment at base wider than greatest length about 1.8 : 1. Frons in middle line longer than wide at widest part about 2.3 : 1, widest about level of ocelli, lateral carinae nearly straight below ocelli, median carina forked at level of ocelli. Postclypeus as wide at base as frons at apex, slightly longer than wide at base. Rostrum reaching meta-coxae, apical segment shorter than subapical. Post-tibial spur with about 26 teeth. Anal segment of male short, collar-shaped, lateroapical angles each produced into a long spinose process, widely separated from each other, directed ventrad. Pygofer in profile distinctly longer ventrally than dorsally, in posterior view with opening about as wide as long, lateral margins defined, ventral margin shallowly concave with 3 medioventral processes, in ventral view pointed at same level. Phallus large, tubular, apex reflected cephalad at right, turned dorsad near apex, with 2 long, stout processes directed basad, one on apical fourth left, another near apical third right. Suspensorium Y-shaped, arms shorter than stem. Diaphragm not distinctly membraneous, dorsal margin slightly concave. Opening for genital styles small, dorsal and ventral margins evenly convex. Genital styles moderately long, divergent, apical half slightly twisted, turned caudad apically, inner margin slightly sinuate, outer margin shallowly concave at apical half, outer angle pointed (Yang 1989).

Diagnosis References

Yang, C.T. 1989. Delphacidae of Taiwan II (Homoptera: Fulgoroidea). National Science Council Special Publications, Taiwan 6: 1-334 [98]

History of changes