Oncopeltus (Oncopeltus) orourkeae, Faúndez, Eduardo I. & Rocca, Javiera R., 2017

Faúndez, Eduardo I. & Rocca, Javiera R., 2017, A new species of Oncopeltus Stål, 1868 (Heteroptera: Lygaeidae) in the nominate subgenus from Ecuador, Zootaxa 4238 (2), pp. 249-252 : 249-250

Oncopeltus (Oncopeltus) orourkeae sp. nov. ( Figs. 1, 3, 4 , 5, 7, 8, 9, 10 )

Description. General features: Body elongated ( Figs. 1, 3 ), main coloration blackish and white, with small reddish areas, body entirely covered by strong dark pilosity.

Head: Triangular shaped (isosceles) ( Fig. 5 ), wider than long, entirely black colored, eyes prominent and spherical, blackish colored, ocelli whitish, located at posterior margin of eyes, tylus prominent and acute, juga evanescent anteriorly, antennifers subconical and oriented down, dorsally visible, first antennomere clearly extending beyond anterior end of the head, bucculae evanescent ( Fig. 3 ), distinctly ivory colored, rostrum extending to abdomen, first rostral segment thickened ( Fig. 3 ), reaching prosternum.

Thorax: Pronotum swollen ( Fig. 3 ), trapezoid shaped ( Fig. 5 ), black colored with two ivory or reddish subtriangular patches in the anterior lobe, covered with dense long black pilosity, produced posteriorly at each side of scutellum, projections rounded, midline well developed as a small ridge, cicatrices subtriangular, concolorous with the ivory patches; scutellum swollen, black, isosceles shaped, with median ridge well developed; clavus ivory with distal end blackish; hemelytra ivory with a median band black, covered with long concolorous pilosity ( Fig. 4 ), membrane black, immaculate. Pleura bicolored ivory-black, metapleura black, ostiolar peritreme short ( Fig. 3 ), reaching to one third of metapleura, distinctly ivory or red colored, evaporatoria finely polished, occupying most of the metapleura and posterior margin of mesopleura; legs black, with dense black pilosity, tibiae cylindrical without any sulcus.

Abdomen: Entirely covered by strong dark pilosity, abdominal sternites black with ivory or reddish patches on the sides. Female terminalia: 7th abdominal segment wide, basal plates with truncate edges, last abdominal sclerites projected posteriorly. Male genitalia: Pygophore entirely black with long and strong black pilosity, in ventral view subpentagonal with concave apex ( Fig. 10 ), and a transverse midline, in dorsal view posterior opening rounded and wide and in caudal view inner opening elongate. Clasper bilobate ( Figs. 7–9 ) with abundant pilosity, basal lobe robust with a lateral process in the upper portion ( Fig. 7 ), internal face convex, apical lobe elongate and sharpened ( Fig. 8 ), blade with a strong concave area in the lower edge, basal portion little produced backwards ( Fig. 9 ).

Measurements of holotype male (paratype female in parentheses): Total length: 15.6 (16.1), pronotum width: 4.89 (5.21), pronotum length: 3.47 (3.88); head length: 1.77 (1.89), head width: 2.14 (2.55), scutellum length: 2.19 (2.35), scutellum width: 2.52 (2.80), antennomeres: I=1.26 (not measured in paratype), II=3.30, III=2.71, IV=3.05, rostrum: I=2.71 (not measured in paratype), II=1.31, III=1.65, IV=1.43.

Holotype: Ecuador, San Rafael , 26-VI-1967, 1♂ leg. G. Zuffi.

Paratypes: Ecuador, Tungurahua, Río Negro , 1100m a.s.l. 10-V-1976, netted, 1♀ leg. T. E. Rogers ( USNM) ; Ecuador, without more data 2♂♂ (National Museum, Praha Czech Republic).

Etymology: Named after the late Dr. Flavia O’Rourke for her outstanding contributions to the knowledge of this genus, and being the first person recognizing a series of undescribed species in the New World (O´ Rourke, 1976).

Figures

FIGURES 1 – 4. 1, 3, 4. Oncopeltus orourkeae, holotype male. 1. Habitus (Total body length = 15.6 mm), 3. Lateral view of head and thorax. 4. Detail of margin of hemelytra and pilosity .. 2. Oncopeltus varicolor, male, habitus (Total body length = 16.2 mm).

FIGURES 5 – 10. 5, 7, 8, 9, 10. Oncopeltus orourkeae, holotype male. 5. Head and pronotum, dorsal view (Total body length = 15.6 mm), 7. Clasper, latero-external view (lateral process side), 8. Clasper, latero-ventral view, 9. Clasper, latero-internal view, 10. Pygophore, ventral view. 6. Oncopeltus varicolor, male, head and pronotum, dorsal view (Total body length = 16.2 mm).