Machaeropsis Melichar

Andrew Hamilton, K. G., 2014, The old-world Zygonini tr. nov. (Hemiptera, Cercopoidea, Clastopteridae), with new taxa from the related Machaerotinae, Zootaxa 3768 (4), pp. 437-459 : 443

Machaeropsis Melichar , redefined

Machaeropsis Melichar, 1903: 137 . Type-species by monotypy: M. valida Melichar, 1903 .

Diagnosis. Antenna as in Capnodistini (Aphrophorinae) in having the postpedicel deeply withdrawn into the tip of the pedicel, bearing only a single peglike basiconic sensillum near the arista, lacking both coeloconic sensilla and surface sculpturing; antennal ledge narrow and triangular, similar to that of Hindola ( Fig. 22 B) but lacking the distinct ridges, as in Enderleinia E. Schmidt. Inner and outer apical cells of tegmen extending about equally basad; male genitalia as in Chaetophyes E. Schmidt ( Maa 1963, fig. 13), but style tip smaller than triangular base and theca thick, straight, with a stout spine on the anterior margin ( Fig. 14 C) resembling that of Pseudomachaerota ( Fig. 7 C).

Remarks. The new species, described below, is the first time a male of this genus has been found. The superficially similar Machaeropsis and Metaenderleinia were synonymized by Maa (1963) but the male genitalia of both prove to be autapomorphous. For example, the theca of Metaenderleinia is massive and curved dorsad ( Fig. 13 B). It is anticipated that additional characters separating these genera will be found when the antennae of Metaenderleinia become known.

Figures

FIGURES 18 – 32. Antennae of Clastopteridae: Clastopterinae (18 – 20) and Machaerotinae: Hindolini (21 – 23), Machaerotini (24 – 25) and Zygonini (26 – 32, boxed set). A, lateral aspect of head; B, detail of antennal and antenna ledge; C, tip of antenna, showing postpedicel; D, detail of postpedicel showing detail of pits, revealing 4 enclosed coeloconic sensilla in communal pits. 18, Clastoptera; 19, Sepullia; 20, Grellaphia; 21, Chaetophyes; 22, Hindola; 23, Allox; 24, Blastocaena; 25, Irridiculum; 26, Pseudomachaerota cucullata; 27, Zygon, with detail showing basiconic sensilla (b) and coeloconic sensilla (c) of various types (shown in greater detail in Fig. 38); 28, Ambonga lanceolata (Zygonini); 29, Ambonga apicenotata syntype with insert showing sensilla at base of arista; 30, Pseudoclastoptera irrubesco sp. nov., holotype; 31 – 32, Pseudoclastoptera invidia sp. nov., male holotype (32) and unassociated female (31).

FIGURES 10 – 16. Examples of Clastopterinae (10 – 11) and Machaerotinae (12 – 16). 10, Clastoptera testacea Fitch; 11, Iba cuneata Schmidt, lectotype; 12, Allox transfigurata; 13, Metaenderleinia nervosa Lallemand; 14, Machaeropsis dramatica (genital capsule as in Metaenderleinia); 15, Irridiculum; 16, Hindoloides bipunctata (Haupt), male genitalia typical of Machaerotini and Hindoloidini. A, habitus; B, male genital capsule (small styles as in 16 B omitted in 12 – 13 B). Scale line for habitus drawings: 1 mm (Fig. 11 A slightly larger).

FIGURES 5 – 9. Zygonini, dorsolateral aspect (A); male subgenital plates (B), ventral aspect; (C), genital capsule and theca (with style in 7 – 9), lateral aspect; (D), theca, caudal aspect; (E) habitus, dorsal aspect. 5, Pseudoclastoptera irrubesco (style as in Pseudomachaerota); 6, Pseudomachaerota olivacea, female holotype; 7, Pseudomachaerota cucullata; 8, Hemizygon saturnus; 9, Zygon desegregatum. Scale line for habitus drawings: 1 mm.