Rosalba clinei Tavakilian, Santos-Silva & Galileo, 2018

Santos-Silva, Antonio, Galileo, Maria Helena M., Joly, Luis J. & Tavakilian, Gérard L., 2018, The genus Rosalba Thomson, 1864 (Coleoptera, Cerambycidae, Lamiinae, Apomecynini), Zootaxa 4387 (2), pp. 201-258 : 213-215

Rosalba clinei Tavakilian, Santos-Silva & Galileo , sp. nov.

( Figs. 25–28 , 91 )

Description. Female. Integument black, dark brown on some areas; mouthparts yellowish brown; scape mostly dark brown; antennomeres reddish brown, darker toward distal segments; tarsal claws dark reddish brown.

Head. Frons finely, abundantly punctate; with pale yellow pubescence almost entirely obscuring integument; with some long, erect, dark brown setae close to eyes. Area between antennal tubercles with sculpture as on frons; with pale yellow pubescence toward frons, more distinctly yellow toward apex and upper eye lobes. Area between upper eye lobes with yellow pubescence obscuring integument, connected to narrow band also with yellow pubescence behind and close to upper eye lobes. Remaining surface of vertex and tempora finely, abundantly punctate; with yellow pubescence obscuring integument except sub-elliptical area on each side of median longitudinal groove with yellowish brown pubescence distinctly exposing integument; with some long, erect, dark brown setae close to upper eye lobes. Antennal tubercles finely, abundantly punctate on base, minutely, abundantly punctate toward apex; with pale yellow pubescence, more yellow toward upper eye lobes. Area between antennal socket and eyes with yellow pubescence obscuring integument. Submentum narrow, depressed close to gula, elevated toward mentum; with short, decumbent, moderately sparse pale yellow pubescence on depressed area, with some long, erect, dark brown setae on elevate area. Postclypeus with sculpture and pubescence as on frons on large central area, smooth, glabrous laterally; with long, sparse, dark brown setae directed forward on punctate area. Labrum convex and coplanar with anteclypeus on basal third, inclined on distal 2/3; finely, moderately abundantly punctate; coplanar area with yellowish pubescence not obscuring integument interspersed with moderately abundant, erect, dark brown setae; inclined area with yellow pubescence obscuring integument toward apex, interspersed with long, erect, yellowish and dark brown setae. Distance between upper eye lobes 0.07 times length of scape; in frontal view, distance between lower eye lobes 0.60 times length of scape. Antennae 2.1 times elytral length, reaching elytral apex at basal quarter of antennomere VIII; with yellowish pubescence not obscuring integument, dorsally with short, erect, sparse yellowish setae; ventrally with erect, dark brown setae on scape, pedicel and antennomeres III–X (gradually shorter, sparser toward X); antennal formula (ratio) based on antennomere III: scape = 1.36; pedicel = 0.30; IV = 1.43; V = 1.36; VI = 1.36; VII = 1.30; VIII = 1.16; IX = 1.06; X = 0.97; XI = 1.13.

Thorax. Prothorax slightly wider than long (1.1 times); sides narrowed on basal quarter, gradually widened toward about middle, then slightly convergent toward distal margin. Pronotum finely, densely punctate (punctures slightly coarser than on frons); with three longitudinal bands of yellow pubescence (central widened at midlength) obscuring integument; remaining surface with yellow pubescence not obscuring integument; with some long, erect, dark brown setae. Sides of prothorax with sculpture as on pronotum; with longitudinal band of yellow pubescence occupying entire inferior half, obscuring integument; remaining surface with yellow pubescence not obscuring integument; with some long, erect, dark brown setae. Prosternum with yellowish white pubescence not obscuring integument. Prosternal process moderately finely, abundantly punctate; centrally longitudinally sulcate; with nearly erect, yellowish white pubescence partially obscuring integument. Mesoventrite notably transversely depressed close to apex of prosternal process; with slightly conspicuous yellowish white pubescence on depressed area, distinctly more conspicuous laterally on area close to depressed region, glabrous toward apex. Mesanepisternum, mesepimeron and metanepisternum with dense yellow pubescence. Metaventritewith narrow, dense band of yellow pubescence close to metanepisternum; remaining surface with yellowish pubescence partially obscuring integument. Scutellum with dense yellow pubescence except narrow, glabrous central area on basal half. Elytra. Coarsely, abundantly punctate on basal half, gradually finer sparser toward apex, mainly on distal quarter. With 4 longitudinal bands of yellow, dense pubescence, connected between them on basal declivity: outermost close to epipleura, connected to distal macula; one close to elytral curvature, almost reaching distal quarter; one on center of disc, almost reaching distal quarter; one near suture, almost reaching elytral quarter (in the holotype this band interrupted on basal half by loss of pubescence). On basal quarter another longitudinal sutural band of yellow pubescence, becoming yellowish, less dense toward apex (in the holotype, interrupted on basal third by loss of pubescence). Area between longitudinal bands with yellowish pubescence not obscuring integument. Distal quarter with nearly diamond macula of dense, yellow pubescence, connected to band close to epipleura. Another macula of dense, yellow pubescence on distal quarter, surrounding apex, connected to band close to suture, following close to suture, widened toward its apex. Remaining elytral surface with yellowish brown pubescence distinctly exposing integument. Elytral apex slightly obliquely truncate, with outer angle projected and sutural angle rounded. Legs. Femora with yellow pubescence not obscuring integument, more distinct on some areas. Metatarsomere I as long as 0.60 times II–III together; metatarsomere V (without claws) as long as 1.25 times I–III together.

Abdomen. Ventrites with wide band of yellow pubescence obscuring integument laterally (wider on ventrites II–V); remaining surface with yellowish white pubescence partially obscuring integument; distal quarter of ventrite V with long, erect, sparse dark brown setae; apex of ventrite V slightly rounded.

Male. Differs from female mainly by the abdominal ventrites less convex (more conspicuous at II–V).

Variation. Mouthparts dark reddish brown; tarsal claws black; pubescence on frons exposing most of integument; longitudinal bands of yellow pubescence on elytra conspicuous, but distinctly less dense; band on distal quarter of elytra (connected to band close to epipleura) more irregular shaped (in the paratype from Brazil, also connected to innermost band, forming a distinct transverse band); pubescence between longitudinal yellow bands on basal half of elytra whitish.

Dimensions in mm (holotype female/ paratype males/ paratype females). Total length, 5.90/5.65–6.20/4.60– 5.90; prothorax: length, 1.10/1.05–1.15/0.90–1.10; anterior width, 1.10/1.05–1.20/0.95–1.10; posterior width, 1.10/ 1.05–1.15/0.90–1.05; widest prothoracic width, 1.25/1.20–1.30/1.05–1.20; humeral width, 1.60/1.55–1.60/1.35– 1.55; elytral length, 4.20/4.00–4.45/3.40–4.15.

Type material. Holotype male from BOLIVIA, Santa Cruz: Potrerillo del Guendá (40 km NW Santa Cruz de la Sierra), 12-18.X.2014, Morris & Wappes col. ( MNKM) . Paratypes—BOLIVIA, Santa Cruz: Potrerillo del Guendá (400 m), 1 female, 6-8.XII.2011, Morris & Wappes col. ( RFMC) ; ( Reserva Natural ; 40 km NW Santa Cruz; 370 m; 17°40’S / 63°27’W), 1 male, 1 female, 30.IX-3.X.2007, Wappes & Morris col. ( ACMT) ; 1 male, 10- 15.X.2007, Wappes & Cline col. (ACMT); 4-6 km SSE Buena Vista (Hotel Flora & Fauna), 1 female, 14- 16.X.2000, Wappes & Morris col. ( ACMT) . BRAZIL, RΟndônia: 62 km SW Ariquemes ( Fazenda Rancho Grande ), 1 female, 7.X.1993, C.W & L.B. O’Brien col. ( MZSP) ; 1 male, 8-20.XI.1994, W. W. Hanson col. (LGBC). FRENCH GUIANA: Montagne des Chevaux ( Roura ), 1male, 11.VII.2009, P. H. Dalens col. ( PHDC) ; 1 female, 10.XI.2011, P. H. Dalens col. (PHDC); 1 male, 05.XII.2015, P. H. Dalens col. (PHDC); 1 male, 02.I.2016, P. H. Dalens col. (PHDC); 1 female, 23.I.2016, P. H. Dalens col. (PHDC); Kourou , 1 specimen (unknown sex; ex larva), 10.VI.2008, J. L. Giuglaris col. ( JLGC) ; ZA Wayabo Matiti , 1 specimen (unknown sex), 23.XI.2003, J. L. Giuglaris col. ( JLGC) ; 1 specimen (unknown sex), 01.II.2014, J. L. Giuglaris col. (JLGC); 1 specimen (unknown sex), 06.XII.2014, J. L. Giuglaris col. (JLGC); RN2 (pk 43; beating), 1 male, 18.VIII.1985, Patrick Sarrycol. [ex collection IRD#939](MNHN).

Etymology. This species is named for Andrew Cline, an enthusiastic participant in the Bolivian Cerambycidae survey who collected part of the type series.

Remarks. RΟsalba clinei sp. nov. is similar to R. lingafelteri sp. nov., but differs mainly by the sides of prothorax narrowed on basal quarter (sides uniformly and slightly rounded in R. lingafelteri ), the distal quarter of elytra without a wide, transverse band of yellow pubescence on base of distal third (present in R. lingafelteri ), and the distal quarter of the elytra with areas exposing integument (not so in R. lingafelteri ).

Figures

FIGURES 21–27. 21–24, Rosalba lingafelteri sp. nov., holotype male: 21, dorsal habitus; 22, lateral habitus; 23, head, frontal view; 24, ventral habitus.25–27, Rosalba clinei sp. nov., holotypefemale:25, head, frontal view; 26, dorsal habitus; 27, lateral habitus.

FIGURES28–34.28, Rosalba clineisp.nov., holotype female, ventralview.29–32, Rosalba biraisp.nov., holotype male:29, dorsal habitus; 30, head, frontal view; 31, ventral habitus; 32, lateral habitus. 33–34, Rosalba stenodesma sp. nov., paratype male:33, head, frontal view; 34, lateral habitus.

FIGURES90–96. Dorsalhabitus:90, Rosalbasenecauxi sp.nov., holotype male; 91, Rosalba clinei sp.nov., paratype female; 92, R. stenodesma, holotype male. 93–96, R. dalensi, holotypemale: 93, dorsal habitus; 94, ventral habitus; 95, lateral habitus; 96, head, frontal view.