Myoporophylus, Randall T. Schuh & Michael D. Schwartz, 2016
publication ID |
https://doi.org/ 10.5281/zenodo.269465 |
persistent identifier |
https://treatment.plazi.org/id/03DE8796-BEB5-0493-798E-3A11FC948A40 |
treatment provided by |
Plazi |
scientific name |
Myoporophylus |
status |
gen. nov. |
Myoporophylus , new genus
TYPE SPECIES: Myoporophylus grossi , new species.
DIAGNOSIS: Recognized by the large, robust body form, the unicolorous yellow coloration, and dorsum covered with reclining dark simple setae (pl. 19); endosoma sigmoid, secondary gonopore near apex with two simple spines surpassing secondary gonopore by about length of it (figs. 58, 59, pl. 19). Sexual dimorphism moderate, with hemelytron in female somewhat shorter than in male. Endosomal structure similar to that of Omnivoriphylus spp., but species in that group with variable habitus and without robust unicolorous body form seen in Myoporophylus spp.
DESCRIPTION: MALE: Total length 3.17–4.30, pronotum width 1.08–1.42. COLORATION (pl. 19): Pale to yellow (in preserved specimens), including all appendages, without markings; membrane weakly fumose. SUR- FACE AND VESTITURE (fig. 57A, B, pl. 19): Body surface smooth, unpolished, dull; dorsal vestiture of reclining dark setae. STRUCTURE (fig. 57A, pl. 19): Head: Weakly to distinctly transverse, conforming to anterior margin of pronotum or eyes distinctly bulging; frons weakly projecting beyond eyes or not; antennal segment 2 variable. Thorax: Pronotum ranging from relatively short along midline to broad and shieldlike, lateral margins carinate or not. Pretarsus as in figure 57D. Hemelytron: Lateral margin ranging from straight to rather strongly convex. GENITALIA (figs. 57C, 58, 59, pl. 19): Pygophore: Broadly conical or triangular, truncate apically; left margin of aperture slightly raised with a few bristles anteriad of paramere insertion. Endosoma: Sigmoid; straps adhered to one another from base to just proximad of secondary gonopore; dorsal strap bifid both proximal to and distad of secondary gonopore with subapical and apical spines of variable structure, longer apical spine surpassing secondary gonopore by about length of gonopore and supporting billowy membranes; ventral strap strongly attenuate proximal to and terminating near left side of secondary gonopore; secondary gonopore subapical, situated within thin billowy interstrap membrane. Phallotheca: Apical portion broadly conical, dorsal margin with variable length crests, aperture reaching apex, situated on anterior dorsal surface, long with undulating margin; basal portion long, reaching to just beyond middle of pygophore ventral surface in situ. Parameres: Left paramere typically phyline somewhat elongate in dorsal view, dorsoposterior margin and posterior process variable; anterior process small, prominent seta on lateral surface of lobe. Right paramere relatively large without distinct apical projection.
FEMALE (pl. 19): Similar to male in coloration and structure; sexual dimorphism weak; total length 3.09–4.43, pronotum width 1.14–1.56. GENITALIA (pl. 49): Subgenital plate of sternite 6: Concave medially. Vestibular sclerites: Large, reaching beyond anterior margin of dorsal labiate plate. First gonapophyses: Large, quadrate basal blocks with ir ‐ regularly undulate margins. Ventral labiate plate: Platelike medial anteroventral extension relatively long, covering anterior surface of basal structures, but not as wide as lateral margin. Dorsal labiate plate: Medium length. Sclerotized rings: Large, relatively flat, relatively thin walled, subovoid or subtriangular. Posteromedial region: Surface without conspicuous microstructure. Anterolateral region: Anterior margin extending beyond anterior edge of sclerotized rings by length of a ring.
Posterior wall: Intersegmental structure: Conspicuous triangular transverse outpocket projecting posteriorly from dorsal surface of connecting membrane. Interramal sclerites: Apparently entirely membranous with conspicuous microspiculate dorsal surface.
ETYMOLOGY: From the generic name Myoporum , in reference to its host association, and the generic name Phylus ; masculine.
DISCUSSION: Among members of the Australian Cremnorrhinina Myoporophylus spp. are among the largest and of the most robust body form.
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