Rhyncholepta henryi, Kment, Petr, Eger, Joe E. & Rider 3, Jr. David A., 2018

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 : 380-382

Rhyncholepta henryi sp. n. Figs 6, 23, 36-37, 48-49, 60-61, 69, 75, 84-86, 92, 96

Type locality.

French Guiana, Roura Commune, Route de Kaw, Camp Caimans, 4°34'09.8"N 52°13'05.5"W, 320 m a.s.l.

Type material.

Holotype: ♂ (Figs 6, 23, 36-37, 48-49, 60-61, 69, 75), "GUYANE FR., Rt. de Kaw / Camp Caimans, 320 m a.s.l. / 04.5694N, 52.2182W / 11.-19.i.2016, S. MURZIN lgt. [printed, white label] // COLLECTIO / NATIONAL MUSEUM / Praha, Czech Republic [printed, white label] // ♂ [printed, white label] // HOLOTYPUS / RHYNCHOLEPTA / HENRYI / sp. nov. / det. Kment, Eger, Rider 2017 [printed, red label]" (NMPC). The holotype is card-mounted, with the detached left distiflagellum glued on the same piece of card and the detached genital capsule and abdominal segment VIII glued separately on a small piece of card.

Paratypes: FRENCH GUIANA: Cayenne Arrondissement: Kourou Commune: Montagne des Signes near Kourou [ca. 5.091899°N 52.699481°W], collected at mercury vapor light, 3.vi.1986, 2 ♂♂, E. C. Riley and D. A. Rider lgt. (DARC). Roura Commune: 27 km SE Roura on Kaw Rd., 4°34.116'N, 52°12.614'W, MV Light, 5.ii.2010, 1 ♂, J. E. Eger lgt. (JEEC); 32 km SE Roura on Kaw Rd., 4°33.612'N, 52°11.350'W, 287 m a.s.l., MV Light, 15.ii.2010, 1 ♂, J. E. Eger lgt. (JEEC); 33 km SE Roura on Kaw Rd., 4°34.135'N, 52°11.150'W, 227 m a.s.l., MV Light, 12.-13.iv.2007, 6 ♂♂, D. G. Hall and J. E. Eger lgt. (JEEC); Amazone Nature Lodge, 30 km SE Roura on Kaw Rd., 4°33.570'N, 52°12.433'W, 300 m a.s.l., UV Light, 10.-18.iv.2007, 1 ♂, D. G. Hall and J. E. Eger lgt. (JEEC); the same locality, MV Lights, 4.-15.i.2016, 4 ♂♂, J. Eger, R. Morris and J. Wappes lgt. (JEEC); Camp Caiman, 4.569°N 52.218°W, 260 m a.s.l., 8.-31.i.2018, 3 ♂♂, S. Murzin lgt. (NMPC); Entomotech Lodge, 30 km SE Roura on Kaw Rd., 4°33.570'N 52°12.433'W, 300 m a.s.l., MV Light, 17.xi.2004, 1 ♂, xi.2004-ii.2005, 2 ♂♂, 17.i.2005, 1 ♂, F. Goubert lgt. (JEEC); Highway N2 to Regina, 45 km S of Cayenne [ca. 4°31'53"N 52°22'20"W], collected at mercury vapor light, 31.v.1986, 2 ♂♂, E. G. Riley and D. A. Rider lgt. (DARC); Montagne des Chevaux RN2 km 22 [ca. 4.7216°N 52.3073°W], automatic light trap (white LED), 3.i.2013, 1 ♂, SEAG leg. (MNHN). Saint-Laurent-du-Maroni Arrondissement: Mana Commune: Réserve Trinité [ca. 4°04'18"N 52°33'18"W], Drop Zone Aya, UV light trap, 30.v.2012, 1 ♂, SEAG leg. (RLFF). Saül Commune: Belvédère [ca. 2.41°N 53.1°W], automatic light trap (blue LED), 5.vii.2017, 1 ♂, SEAG leg. (RLFF). - All the paratypes are bearing the following identification label: "PARATYPUS / RHYNCHOLEPTA / HENRYI / sp. nov. / det. Kment, Eger, Rider 2017 [printed, yellow label]".

Additional material examined

(females tentatively identified as Rh. henryi ). FRENCH GUIANA: Cayenne Arrondissement: Kourou Commune: Montagne des Signes near Kourou [ca. 5.091899°N 52.699481°W], collected at mercury vapor light, 3.vi.1986, 1 ♀, E. C. Riley and D. A. Rider lgt. (DARC). Montsinéry-Tonnegrande Commune: 8 km W of Risquetout, 4°55.097'N 52°33.121'W, 45 m a.s.l., MV Light, 15.iv.2007, 3 ♀♀, D. G. Hall and J. E. Eger lgt. (JEEC). Roura Commune: 21 km SE Roura on Kaw Rd., 4°36.115'N, 52°15.972'W, MV Light, 6.-7.ii.2010, 1 ♀, J. E. Eger lgt. (JEEC); 28 km SE Roura on Kaw Rd., 4°34.252'N, 52°12.797'W, 306 m a.s.l., MV Light, 17.ii.2010, 1 ♀, J. E. Eger lgt. (JEEC); 32 km SE Roura on Kaw Rd., 4°33.612'N, 52°11.350'W, 287 m a.s.l., MV Light, 15.ii.2010, 1 ♀, J. E. Eger lgt. (JEEC); 33 km SE Roura on Kaw Rd., 4°34.135'N, 52°11.150'W, 227 m a.s.l., MV Light, 12.-13.iv.2007, 7 ♀♀, D. G. Hall and J. E. Eger lgt. (JEEC); Amazone Nature Lodge, 30 km SE Roura on Kaw Rd., 4°33.570'N, 52°12.433'W, 300 m a.s.l., UV Light, 4.-15.i.2016, 1 ♀, J. Eger, R. Morris and J. Wappes lgt. (JEEC); Camp Caiman, 4.569°N 52.218°W, 260 m a.s.l., 8.-31.i.2018, 1 ♀, S. Murzin lgt. (NMPC); Entomotech Lodge, 30 km SE Roura on Kaw Rd., 4°33.570'N 52°12.433'W, 300 m a.s.l., MV Light, 1.-12.xii.2002, 1 ♀, J. E. Eger lgt. (DARC); Highway D6 to Kaw, 33.5 km SE of Roura [ca. 4°32'47"N 52°08'41"W], 10.ii.1986, 1 ♀, G. Tavakilian lgt. (DARC).

Diagnosis.

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

Apex of scutellum with anteapical black V-shaped stripe well developed (Figure 23). Apical V-shaped callosity thin, narrowly delineating margins of scutellum apex, branches forming more than half of length, tip of scutellum lacking conspicuous triangular callosity (Figure 23).

Male genitalia. Genital capsule in ventral view only slightly constricted lateroapically, posterolateral angles prominent (Figs 36, 60); dorsal wall at base of posterolateral angles shallowly impressed (Figs 60, 69). Ventral rim in ventral view truncate apically, slightly notched medially (Figs 36-37), posterior hypandrial projections visible and caudal, together with ventral rim forming wide T (Figs 36-37); bases of lateral projections also visible (Figure 37). Hypandrium in posterior view with three pairs of projections: posterior ones caudal, short, flat, narrowly rounded apically with small rounded projection anteapically on posterior margin (Figs 48-49); lateral projections very narrow, directed posterolaterad, apices spinose, curved upwards (Figs 48-49); anterior projections steeply sloping downwards, appearing narrowly triangular in dorsal view, acutangulate apically (Figs 48-49). Anterior hypandrial projections in most exposed (dorso-posterolateral) view appearing nearly triangular with dorsal margin nearly straight, apically with sharp, straight, flattened spine (Figure 75: ap); posterior and lateral projections forming acute angle (Figure 75: a); posterior projection appearing straight, wide, widely rounded apically in this view (Figure 75: pp); lateral projection narrowing, shortly bent downwards apically (Figure 75: lp). Anterior hypandrial projections narrowing anteriad towards apices in dorsal view, apices straight, each forming large claw-like spine curved downwards (Figs 60, 61: ap), posterior projections short, flat, apically rounded (Figs 60, 61: pp); lateral projections directed laterad, each narrowing to sharp spine, curved anteriad apically (Figs 60, 61: lp). Phallus (Figs 84-86) with basal conjunctival sclerite drop-shaped (Figure 85: cjs) and aedeagus only slightly sinuate apically (Figure 85: ae), very similar to that of Rh. meinanderi .

Female genitalia. Posterior edges of laterotergites VIII suddenly attenuated apically, posteriorly about as long as laterotergites IX (Figure 92), indistinguishable from Rh. grandicallosa .

Measurements. Table 1. Measurements of holotype (in mm): Body length 12.39, body length to segment VII 10.91, head length 2.55, head width 2.27, interocular width 1.15, length of each antennomeres: I - 0.86, IIa - 1.34, IIb - 2.61, III - 3.46, IV - 2.95, pronotum length 2.47, pronotum width 8.05, scutellum length 4.37, scutellum width 3.62.

Differential diagnosis.

See above key. All specimens differing from the majority of specimens of Rh. g. grandicallosa by complete black V-shaped band anteapically on scutellum (character does not work for all specimens of Rh. g. grandicallosa ).

Etymology.

We are pleased to dedicate the new species to our colleague, Thomas J. Henry, an excellent specialist in Heteroptera and curator of the USNM, on the occasion of his 70th birthday. We much appreciate his generosity in helping visitors with literature or specimens in the USNM, including hosting colleagues in his home when they visited the collection.

Bionomics.

Most specimens were collected by various types of light traps (UV light, mercury vapor light, white and blue LED) 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.). Rhyncholepta henryi was found from November to February and from April to June, with most specimens collected in April (Figure 96).

Distribution

(Figs 99-100). French Guiana (present paper).