Ropalomera glabrata Prado, 1966

Kirst, Frederico Dutra & Ale-Rocha, Rosaly, 2012, Taxonomic revision of the Amazonian species of Ropalomera Wiedemann, 1824 (Diptera: Ropalomeridae), Zootaxa 3151, pp. 1-27 : 12-14

Ropalomera glabrata Prado, 1966

Rhopalomera glabrata Prado, 1966: 215 , 227, 230–232 (key, description, figs. 45–51). Ropalomera glabrata ; Steyskal, 1967: 2 (catalogue); Báez, 1985: 78 –79 (description of male, figs. 1–3); Prado & Papavero, 2009: 3 (catalogue).

Holotype female. Body: 7 mm, according to Prado (1966); wing: 7.8 mm

Head: Frons brown with thin yellowish pilosity, yellow spots ahead of ocellar region; eye circumference with silver pollinosity. Ocellar region dark brown, shiny and with a pair of thin bristles. Postocellar bristles parallel. Postocular bristles present. Antenna with brown scape, very short; pedicel brown, twice the size of the scape and with hairs on the anterior margin and one dorsal short bristle; flagellomere brown with orange base; arista plumose with long hairs, dark brown with basal third orange. Gena broad, yellow, covered with silver pollinosity and slender golden bristles, which are dorsally short and ventrally longer. Parafacialia brown, with black hairs and three distinct bristles. Face yellowish, with shiny facial tubercle. Clypeus brown. Palpus orange with sparse small dark-brown setae, and larger setae ventrally.

Thorax: Scutum dark brown with acrostichal and dorsocentral stripes of pale-golden pollinosity. Scutellum trapezoid, dorsal surface slightly concave and matte, rounded posteriorly, bright and without pollinosity, side of basal half with pale-golden pollinosity. Mesopleuron with stripe of silver pollinosity extending to the anepisternum. Chaetotaxy: one postpronotal, two notopleural, one weakly developed presutural supra-alar, one postsutural supra-alar, one postalar, one intra-alar, one intra-postalar, one acrostichal; two strong scutellar bristles, with one apical and one on lateral half of scutellum. Mesopleuron with one strong bristle on anepisternum, one on katepisternum and one distinct seta on posterior margin of posterior spiracle.

Legs: Coxae with silver pollinosity. Femora dark brown; fore and mid femora with bristles of same size. Fore femur on distal third with four strong dorsal bristles; ventrally with long pilosity and series of three strong bristles. Mid femur with two strong apical bristles on the dorsal surface; ventral surface with two series of spine-like setae, 12 anteroventral and 10 posteroventral setae, decreasing in size toward the apex. Hind femur brown only on dorsal surface, which has 13 thin bristles that are longer than the pilosity; distal third with four short strong anteroventral bristles in series; posteroventral surface with three bristles. Tibiae brown, fore and mid tibiae thinner; fore tibia on distal third with dense dark-brown pilosity parallel to anteroventral surface of tibia; one strong dorsal apical bristle. Mid tibia on dorsal surface with a strong preapical bristle, and two ventral apical spine-like bristles. Hind tibia with 11 long non-aligned dorsal bristles. Tarsi yellowish, with black dorsal bristles and dense golden pilosity ventrally.

Wing: Infuscated, darker around cross-vein r-m ( Fig. 60 ).

Abdomen: With dark-brown tergites, each tergite with four silver spots of pollinosity (giving chessboard appearance). Tergites 4 and 5 without pollinosity; ovipositor with tergite 7 totally membranous; spermatheca reniform.

Male: Differs from the female in the following ways: body 8.2 mm; wing 8.0 mm; facial tubercle matte; face totally yellowish-brown. Legs with longer bristles. Abdomen: Sternite 5 approximately rectangular, with rounded sides, posterior margin with v-shaped inverted invagination in the mid region, lateral bristles longer than bristles of mid region ( Fig. 22 ). Terminalia: cerci fused in basal 2/3, with long bristles on the sides and apex ( Figs. 23, 24 ). Surstylus as long as cerci, narrowest medially, inner margins parallel, curved with apex clavate ( Fig. 25 ). Parameres bilobed, with distal region curved ( Figs. 26, 27 ). Aedeagus with a sclerotized stripe on basal half and middle ( Figs. 27, 28 ). Epiphallus anchor-shaped with short branches and truncated apex ( Figs. 27, 28 ).

Type material. Holotype female ( FIOC) labeled: [ BRAZIL], Faz[enda] Floresta, Mun[icípio] Três Lagoas, MT [Mato Grosso do Sul], 13–20.IX.1964, Exp[edição do] Dep[artamen]to [de] Zool[ogia]; 1 paratype Ƥ with same data of holotype ( FIOC).

Condition of type: All abdomens previously dissected by Prado (1966). In subsequent years was lost the abdomens. Rest of the body in good condition.

Additional material examined. BRASIL, Pará, Bragança–Ajuruteua, 30.viii–04.ix.1988, I. S. Gorayeb, Armadilha Suspensa, 1.66m, 2 Ƥ ( MPEG); same but Armadilha Malaise, Ƥ ( MPEG); Amazonas, Presidente Figueiredo, AM 240, Km 24, Comunidade São Francisco de Assis, 02°01’S / 59°49’W, 01–11.ix.2002, Isca da banana fermentada, F. Xavier & U. Barbosa, Ƥ ( INPA); Manaus, ZF-2, Km 41, torre, 02º35’21”S / 60º06’55”W, 10–13.xii.2004, lençol c/ luz mista e BLB, 35m altura, C. S. Motta, A. S. Filho, S. Trovisco & M. Cutrin, Ƥ ( INPA); Torre 16–30 m, 62º35’21”S / 60º06’55”W, 18–21.v.2004, coletor anônimo, 3 ( INPA); Novo Aripuanã, R. Soka, 05°15’53”S 60°07’08”W, 17–25.viii.1999, Ƥ ( INPA); Reserva Km 41, Projeto Dinâmica Biológica de Fragmentos Florestais, 27–28.x.2004, Trilha J I-D, R. Querino, Ƥ ( INPA); Estrada AM 1, km 182, 13.vii.1968, E. V. Silva e A. Faustino, 3 ( INPA); Reserva Adolpho Ducke, 26.viii–01.ix.1988, Isca de fruta, Y. Camara e F. Xavier, Ƥ ( INPA); same but, 17–24 xi.1988, J. E. Rinda, 3 ( INPA); same but, 16.ix.2002, E. F. Soares e A. L. Pinheiro, área aberta, platô, Arm[adilha] McPhail, 3 Ƥ, 2 3; baixio; 2–9 x.2002; 9–16.x.2002 (all INPA); same but, 6.xi.02, platô, 3; same but, 18.xii.2002, 2 Ƥ (all INPA); same but, Am-010, Km 26, 28.iv –05.v2003, Arm. de garrafa Pet, J. E. Pereira, 3, Ƥ ( INPA); same but, Arm. McPhail, A. P. Tregue-Costa, Ƥ ( INPA); same but, 16.v.2003, área aberta, platô, 25m, Arm. McPhail modif[icada], 89 Ƥ, 46 3; 15 m; 20.v. 2003, 25m; 15m; 28.v. 2003, 15m; 29.v. 2003, 5m; 15m; 06.vi. 2003, 5m; 25m; 5m; 15m; 16.vi. 2003, 5 m; 25m; 15m; 24.vi. 2003, 5m; 15m; 29.vi. 2003, 25m (all INPA); same but, 24.vii.2003, mata, baixio, Igarapé Barro Branco, Arm. McPhail, 3 ( INPA); same but, Sede, 15m, melado de cana 10%, 2 3, Ƥ ( INPA); same but, 25m, Arm. McPhail modif[içado], 27 Ƥ, 13 3; 07.viii. 2003, 25m; 15.viii. 2003, 15m; 25m; 26.viii. 2003, 15m; 25m; 16.ix. 2003, 15m; 25m; 29.ix. 2003, 25m; 16.x. 2003, 25m; 23.x. 2003, 15m; 25m (all INPA); BR 174, Km 23, EARA, 16.i. [19]97, McPhail, em araticum, B. Ronchi-Teles, 2 3, 3 Ƥ; 17.iv.97; 24.iv.97; 22.v.97, em bacuri; 05.vi.97; 05.vi.97, em araticum (all INPA); Km 40, Estação Experimental de Fruticultura Tropical, 30.i.1997, em araçá boi, Ƥ ( INPA); Conjunto Jardim Europa, Bairro Ponta Negra, 15–23.xi.2002, Arm. de garrafa Pet, A. P. C. Marques, 7 Ƥ ( INPA); Conjunto Hiléia, 31.v.2004, coletor anônimo, 4 Ƥ; 03.vi.2004, 9 Ƥ (all INPA); CEPLAC, iv.2001, Arm. McPhail, B. Ronchi-Teles, 4 3 ( INPA); Humaitá, 11.xii.2000 – i.2001, Armdillha McPhail, B. Ronchi-Teles, 2 Ƥ ( INPA).

Geographical distribution. Venezuela (Aragua, Zulia, Monagas, Carabobo, Bolívar Guri) and Brazil (Amazonas, Pará, Mato Grosso do Sul).

Variations. Only variations in size were observed, and in some specimens the coloration of the face ranged from yellow to brown.

Discussion. This species was first recorded in the Brazilian Amazon, and later in the Venezuelan Amazon ( Báez 1985). This species resembles Ropalomera femorata in coloration, but differs in the size, morphology, chaetotaxy of sternite 5, genitalia and legs. Ropalomera glabrata is smaller and sternite 5 does not have spine-like bristles in the posterior region; and R. femorata has trilobed parameres and the aedeagus has preapical, spine-like projections.

Figures

FIGURES 57 – 64. Wings: 57, Ropalomera albifaciata sp. n. (3 paratype); 58, R. clavipes (3); 59, R. femorata (3); 60, R. glabrata (3); 61, R. goyana (3); 62, R. nudipes (Ƥ); 63, R. tessellata (3); 64, R. tibialis (3). Scales = 2,0 mm.

FIGURES 22 – 28. Ropalomera glabrata 3: 22, Sternite 5; 23 – 24, epandrium (ventral and lateral view); 25, left surstylus (dorsal view); 26, left paramere (lateral outer view); 27 – 28, inner male terminalia (ventral and lateral view). Scales: 22 – 24, 27, 28 = 0,5 mm; 26, 27 = 0,2 mm.