Monomalpha Emeljanov, 2000

Löcker, Birgit, 2020, Revision of the Australian planthopper genus Monomalpha Emeljanov with the description of the new genus Latissima (Hemiptera: Auchenorrhyncha Fulgoromorpha: Cixiidae: Cixiini), Zootaxa 4858 (3), pp. 375-393 : 379

Key to species of Monomalpha Emeljanov

1 First hind tarsomere with fourth tooth (counted from the outer side) longer (= protruding further towards second hind tarsomere) than third tooth ( Fig. 6E ); base of third tooth freely visible, not covered by fourth tooth; second hind tarsomere usually with 7 apical teeth ( Fig. 6E )............................................................. M. stenocara sp. nov.

– First hind tarsomere with fourth tooth (counted from outside) shorter (= protruding less far towards second hind tarsomere) than third tooth ( Figs 3F , 5F ); fourth tooth elevated, covering base of third tooth ( Figs 3F ); second hind tarsomere usually with 6 apical teeth ( Fig. 3F )................................................................................. 2

2(1) Frons about as long as wide (in widest part) ( Fig. 3D ). Male genital styles in apical portion deeply emarginate ( Fig. 9F ). MP1+2 bifid ( Figs 3A, 3B ), rarely unforked............................................. Monomalpha fletcheri Emeljanov

– Frons at least 1.5x longer than wide (in widest part) ( Fig. 5D ). Male genital styles in apical portion very shallowly emarginate ( Fig. 10E ). MP1+2 unforked ( Figs 5A, 5B )....................................... Monomalpha gratiosa Emeljanov

Figures

FIGURE 3. Monomalpha fletcheri: A–B habitus (A holotype); C–E head and thorax; F hind tarsi; G hind tibia.

FIGURE 5. Monomalpha gratiosa (holotype). A habitus dorsal; B habitus lateral; C–E head and thorax; F hind tibiae and tarsi. Photos courtesy of Dr Olívia Evangelista (ANIC). Used with permission.

FIGURE 6. Monomalpha stenocara (holotype): A habitus; B–D head and thorax; E hind tarsi.

FIGURE 9. Monomalpha fletcheri: A aedeagus left lateral; B aedeagus ventral; C aedeagus right lateral; D–E anal tube; F–G genital styles.

FIGURE 10. Monomalpha gratiosa: A aedeagus left lateral; B aedeagus ventral; C–D anal tube; E–F genital styles.