Oncometopia acicularis, Rakitov, Roman, 2016

Rakitov, Roman, 2016, The Oncometopia orbona species group (Hemiptera, Cicadellidae, Proconiini), Zootaxa 4168 (1), pp. 109-133: 126

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Oncometopia acicularis

new species

Oncometopia acicularis   , new species

( Fig. 9 View FIGURE 9 )

Description. Length of male 10.9 mm, female 11.4–12.1 mm. External structure as in O. orbona   .

Coloration ( Fig. 9 View FIGURE 9 A–E). Sordid yellow, sprinkled with low-contrast dark markings, except mesokatepisternum on each side with light brown triangular macula, apex of metatibia darkened, posterior portion of pronotum green, and forewings green with setiferous pits contrastingly dark.

Male terminalia. Pygofer ventral process ( Fig. 9 View FIGURE 9 F, G) ca 6.0x as long as wide at base, not hooked at apex. Subgenital plate ( Fig. 9 View FIGURE 9 J) lateral margin with distinct broad concavity at middle, dorsal surface with bare sclerotized area extending along lateral margin from base beyond 1/2 plate length, without dentiform projection at apex. Aedeagus ( Fig. 9 View FIGURE 9 H, I) tall, ca. 1.5x as tall as length of subgenital plates along midline; base short, lacking distinct dorsal margin, with process slender, as long as shaft; shaft strongly compressed laterally ( Fig. 9 View FIGURE 9 I), in caudal view only half as wide as in lateral view, approximately parallel-sided, on ventral surface near middle with membranous stalk bearing spiniform process, apex of shaft produced posteriorly. Other characters as in O. orbona   .

Female terminalia. Sternum VII ( Fig. 9 View FIGURE 9 M) not carinate along midline, with distinct subapical depression, median lobe of posterior margin angular, 1.0–2.0x as wide as long, its width less than 1/3 of posterior margin width. Vestibulum ( Fig. 9 View FIGURE 9 K) with tubular posterior extension 3– 7x as long as wide at base, with distinct median canal and ampulliform apex. Sternum VIII sclerites absent. Genital chamber sclerites ( Fig. 9 View FIGURE 9 K–N, shaded) attached to anterior ends of 1st valvulae, consisting of cucullate anterior parts somewhat produced posterolaterally and elongate platelike posterior parts forming lateral walls of anterior 2/3 of vestibulum extension; both parts with spinose microsculpture on commissural surface. In ventral view ( Fig. 9 View FIGURE 9 L), membranous folds separating these sclerites from anterior ends of 1st valvulae transverse or converging anteriorly. Other characters as in O. orbona   .

Distribution. Mexico ( Fig. 9 View FIGURE 9 O).

Types. Holotype male [ UGCA], MEXICO, TAMAULIPAS, 7 km SSE of Gomez Farias , along quarry road, 16.x.1985, C. L. Smith   . Paratypes: same, 9 km W of 85 on Ocampo Rd. , 16.x.1985, R. Morris II [1♀, UGCA]   .

Additional material examined. MEXICO: SAN LUIS POTOSÍ: El Salto , 13 mi NW Nuevo Morelos, 22.vii.1962, R. B. Roberts [1♀, KSEM]   ; TAMAULIPAS: Estacion Biologica Los Cedros, Gomez Farias , 26- 27.vii.1993, at UV light, E. G. Riley & M. A. Quinn [2♀, TAMU]   ; VERACRUZ: 14 mi W of Conejos , 29.vi.1971, Clark, Hart, Murray, & Schaffner [1♀, TAMU]   ; Rt. 185, km #60, 3 km W of Minatitlan , vacuum, site #01-44, 17.957° N, 94.834° W, 31.x.2001, R. Rakitov [1♀, INHS] GoogleMaps   .

Notes. The species is similar in its body shape and coloration to O. clarior   , except for the absence of distinct black pattern on head and mesonotum. The sternum VII and genital chamber sclerites of the female ( Fig. 9 View FIGURE 9 K–M) and the aedeagus and subgenital plates of the male ( Fig. 9 View FIGURE 9 H–J) are unique.

Etymology. From the Latin acicula (needle), referring to the shape of the aedeagus.


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