Rhyncholepta meinanderi Becker & Grazia-Vieira, 1971

Kment, Petr, Eger, Joe E. & Rider 3, Jr. David A., 2018, Review of the Neotropical genus Rhyncholepta with descriptions of three new species-group taxa (Hemiptera, Heteroptera, Pentatomidae), ZooKeys 796, pp. 347-395 : 382-385

Rhyncholepta meinanderi Becker & Grazia-Vieira, 1971 Figs 7, 24, 38-39, 50-51, 62-63, 70, 76, 87-89, 93, 97

Rhyncholepta grandicallosa (misidentification): Pirán (1956): 29 (record, invalid allotype designation), 35: fig. 1 (line drawing of apex of male abdomen in ventral view).

Rhyncholepta meinanderi Becker & Grazia-Vieira, 1971: 394, 397-399, figs 4-5, 8-9, 11, 13, 15, 17 (description, illustrations of morphological details, distribution).

Rhyncholepta meinanderi : Grazia (1984): 79 (record); Arnold (2011): 104 (record).

Type locality.

Venezuela, Bolívar, Karnakuni, 450 m a.s.l., ca. 4°26'N 64°08'W.

Type material (not examined).

Holotype: ♂, "Kanarakuni, Bolivar, Venezuela, 450 m, 4-II-1967, F. Fernandez Y. and A. D. Ascoli col." (IZAV).

Material examined.

BOLIVIA: Santa Cruz Department: Prov.[incia] del Sara [ca. 17°02'16"S 63°32'47"W], C M Acc 5068, xi.1913, 1 ♀, Steinbach lgt. (DARC). - BRAZIL: Amazonas: Barcelos, Rio Aracá, comunidade Bacuquara, 00°09'17"N 63°10'35"W, 12.-14.vi.2010, 1 ♂, C. Schwertner lgt. and det. (INPA). Rondônia: 62 km SW Ariquemes near Fzda. [= farm] Rancho Grande [10°17'51"S 62°52'08"W], MV and Black Lights, 5.-17.x.1993, 3 ♂♂ 1 ♀, J. E. Eger lgt. (JEEC). 62 km SW Ariquemes near Fzda. Rancho Grande, BLT, 25.xi.1993, 1 ♀, 15.ix.1994, 1 ♀, 25.xi.1994, 1 ♀, U. Schmitz lgt. (JEEC). - ECUADOR: Orellana Province: Yasuni National Park, 00°40.478'S 76°23.866'W, 29.iv.2005, 1 ♂ 1 ♀, C. R. Bartlett, N. Nazdrowicz and D. Chang lgt. (DARC). Napo Province: Puerto Mis[a]hualli env., 1650-1900 ft [= 503-582 m a.s.l.], 1°2'49.2"S 77°39'49.2"W, Mercury vapor and Ultraviolet lights, 6.-19.ix.1998, 1 ♂ 4 ♀♀, J. E. Eger lgt. (JEEC). Pastaza Province: Arajuno env. [ca. 1°14'25"S 77°40'53"W], 3.-10. xii.2000, 1 ♂, V. Kabourek lgt. (ZJPC). - PERU: San Martín Province: Lejias, 59 km N. Tarapoto, 6°18.123'S 76°43.588'W, 1110 m a.s.l., 5.ii.2005, 1 ♂, D. B. Thomas, Warfield, R. Cave, D. Robacker and H. Panduro-Salas lgt. (DBTC). Moyabamba, vic. Ecologica "Rumipata", 6°04'32.0"S 76°58'07.5"W, 970 m a.s.l., MV and UV Light, 13.-18.x.2012, 1 ♂, J. E. Eger lgt. (JEEC). Madre de Dios Province: Rio Tambopata Res., 30 km (air) SW Pto. [= Puerto] Maldonado, 12°50'S 69°17'W, 290 m a.s.l., 2.v.1984, 1 ♀, Smithsonian Institution Canopy Fogging Project (02/03), T. L. Erwin et al. lgt. (USNM).

Diagnosis.

Coloration, structure of head, thorax and pregenital abdomen, and vestiture as in other species of the genus (see redescription of Rhyncholepta above) except the following characters.

Apex of scutellum with anteapical black V-shaped stripe on scutellum reduced to small black spot or single black puncture on each lateral margin at anterior end of the apical V-shaped callosity (Figure 24). Apical V-shaped callosity wide, its branches one third or less of its length, tip of scutellum with distinct triangular callosity (Figure 24).

Male genitalia. Genital capsule in ventral view slightly constricted lateroapically, posterolateral angles obtusangulate, not prominent (Figs 38, 62); dorsal wall at base of posterolateral angles shallowly impressed (Figs 62, 70). Ventral rim in ventral view broadly convex apically, posterior hypandrial projections lateral on projected portion of ventral rim, pointed and directed ventrally (Figs 38-39); only basal portions of lateral projections visible in this view (Figs 38-39). Hypandrium in posterior view with three pairs of projections: posterior ones caudal, short, spinose, curved, apices directed ventrally (Figs 50, 51: pp); lateral projections very narrow, directed posterolaterad, apices spinose, nearly straight (Figs 50, 51: lp); anterior projections steeply sloping downwards, appearing narrowly triangular, acutangulate apically, apices directed dorsolaterad (Figs 50, 51: ap). Anterior hypandrial projections in most exposed (dorso-posterolateral) view appearing roughly quadrangular, dorsal margins slightly convex, apically each with sharp spine bent downwards (Figure 76: ap); bases of posterior and lateral projections forming acute angle (Figure 76: a); posterior projection narrowing towards acute apex (Figure 76: pp); lateral projection narrowing, apically straight (Figure 76: lp). In dorsal view, anterior hypandrial projections narrowing triangularly in basal half, apical half narrow, parallel-sided, slightly divergent, apices acute (Figs 62, 63: ap); only bases of posterior projections visible (Figure 63: ppb); lateral projections directed laterad, each narrowing to sharp spine, apically curved slightly anteriad (Figure 63: lp). Phallus (Figs 87-89; described in detail by Becker and Grazia-Vieira 1971: figs 8, 9, 11) with basal conjunctival sclerite cylindrical (Figure 88: cjs), aedeagus only slightly sinuate apically (Figure 88: ae), very similar to that of Rh. henryi .

Female genitalia (Figure 93). Laterotergites VIII triangularly produced apically, posteriorly distinctly more prominent than posterior margins of laterotergites IX. Internal female genitalia described in detail by Becker and Grazia-Vieira (1971: figs 15, 17).

Measurements.

Table 1.

Differential diagnosis.

See above key. Females with laterotergites VIII triangularly produced apically, distinctly more produced posteriorly (Figure 93). From Rh. henryi sp. n. it also differs by reduced V-shaped black band anteapically on scutellum.

Etymology.

The species was dedicated to Dr. Martin Meinander, former curator of Hemiptera in the Finnish Museum of Natural History, Helsinki ( Becker and Grazia-Vieira 1971).

Bionomics.

Specimens mainly were collected by various types of light traps (UV light, mercury vapor light, black light) in or adjacent to dense forests. This species has never been collected by hand catching, sweeping, or beating vegetation during the day or night (JE Eger, pers. observ.). Adults have been collected in February, April–June, and August–December, with most in September and October (Figure 97) ( Becker and Grazia-Vieira 1971; present paper).

Distribution

(Figs 99-100). Bolivia ( Pirán 1956, as Rh. grandicallosa ; this paper); Brazil: Amazonas, Rondônia (new country record); Ecuador (new country record); Peru ( Arnold 2011; present paper); Venezuela ( Becker and Grazia-Vieira1971, Grazia 1984).