Maculiphylus, Randall T. Schuh & Michael D. Schwartz, 2016

Randall T. Schuh & Michael D. Schwartz, 2016, Nineteen new genera and 82 new species of Cremnorrhinina from Australia, including analyses of host relationships and distributions (Insecta: Hemiptera: Miridae: Phylininae: Cremnorrhinini), Bulletin of the American Museum of Natural History 401, pp. 1-279 : 132-133

publication ID

https://doi.org/ 10.5281/zenodo.269465

persistent identifier

https://treatment.plazi.org/id/03DE8796-BEBD-049B-799A-3A18FF0089F1

treatment provided by

Plazi

scientific name

Maculiphylus
status

gen. nov.

Maculiphylus , new genus

TYPE SPECIES: Maculiphylus eremophilae , new species.

DIAGNOSIS: Recognized by the relatively small size, parallel-sided body form, exserted eyes, and small dark spots covering the pale dorsum (pl. 18); endosoma J-shaped with a terminal secondary gonopore and no apical elaborations (fig. 53, pl. 18), phallotheca with a dorsal keel, right parameres tiny with a laterally directed terminal projection (fig. 53), and female subgenital plate with posteri ‐ orly directed medial projection. Sexual dimorphism moderately strong, the female distinctly ovoid. Possibly confused with Adunatiphylus on basis of size and spotted dorsum, but that taxon with endosomal straps fused medially and apically forming a single, long, erect spine (fig. 2, pl. 1), whereas endosomal straps distinct over most of length, not forming a terminal spine, and secondary gonopore subapical in Maculiphylus (fig. 53, pl. 18). Lepidophylus also with spotted dorsum, but that species covered with lepidote setae.

DESCRIPTION: MALE: Total length 2.96–3.47, pronotum width 0.90–1.03. COLORATION (pl. 18): Body and most of appendages pale green to yellowish, hemelytron uniformly covered with weakly contrasting small graybrown spots; membrane weakly infuscate, without markings. SURFACE AND VESTI- TURE (pl. 18): Surface smooth, dull; vestiture of reclining, pale, simple setae. STRUC- TURE (pl. 18): Head: Transverse, vertex relatively narrow, eyes large, bulging, frons only weakly projecting in dorsal view; eye occupying two-thirds height of head, antenna inserted somewhat above ventral margin of eye, eye emarginate at fossa; antennal segment 2 relatively short, stout, of uniform di ‐ ameter (0.85), 1.12 times width of head; labium reaching midpoint of mesosternum. Thorax: Pronotum weakly elongate, trapezoidal, nearly straight sided, calli very weakly expressed, posterior lobe moderately elevated, posterior margin very weakly concave; meso ‐ scutum moderately exposed. Hemelytron: Moderately elongate, corium laterally nearly straight, cuneus relatively short. GENITA- LIA (fig. 53, pl. 18): Pygophore: Triangular; dorsal surface without tubercles or discrete groups of bristles. Endosoma: J-shaped, straps continuous from base to small membranous apex; secondary gonopore small, well sclerotized, subapically situated within interstrap region. Phallotheca: Apical portion conical; dorsomedial surface with discrete crest basad; narrowly elongate ovoid aperture on anterior dorsal surface; internal basal portion reaching to middle of ventral pygophore surface in situ. Parameres: Left paramere typically phyline with dorsoposterior margin slightly elevated above posterior and anterior processes; posterior process short, slightly deflected; anterior process small, prominent seta not observed. Right paramere minute, fusiform with narrow pointed medial projection apically.

FEMALE (pl. 18): Color, vestiture, and surface texture as in male; body more broadly ovoid, eyes smaller, and vertex relatively wider than in male; total length 2.77–3.03, pronotum width 0.92–1.05. GENITALIA (pl. 48): Subgenital plate of sternite 6: With posteriorly directed medial projection. Vestibular sclerites: Large, reaching to anterior margin of sclerotized rings. First gonapophyses: Relatively large, triangular basal blocks with concave margins. Ventral labiate plate: Platelike medial anteroventral extension reaching lateral extent of basal gonapophysal structures, anterior surface covering anterior surface of basal structures. Dorsal labiate plate: Large, long. Sclerotized rings: Weakly sclerotized, large, subovoid, slightly concave, relatively thin walled. Posteromedial region: Surface without conspicuous microstructure. Anterolateral region: Anterior margin extending beyond anterior edge of sclerotized rings. Posterior wall: Intersegmental structure: Apparently not distinct from dorsal surface of connecting membrane. Interramal sclerites: With weakly sclerotized lateral sclerites, medial sclerite not apparent.

ETYMOLOGY: From the Latin, macula, “ spot,” and the generic name Phylus ; masculine.

DISCUSSION: With respect to coloration and the spots on the dorsum and femora Maculiphylus is most similar to Adunatiphylus . Nonetheless, the structure of the male genitalia in the two taxa is strikingly different, and we therefore treat the two as distinct genera.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Miridae

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