Syneches rafaeli Ale-Rocha & Vieira

Menezes, Isis Sá & Ale-Rocha, Rosaly, 2016, Revision of the Amazonian species of Syneches Walker (Diptera, Hybotidae, Hybotinae), Zootaxa 4103 (5), pp. 401-442 : 427

Syneches rafaeli Ale-Rocha & Vieira

( Fig. 122 )

Syneches rafaeli Ale-Rocha & Vieira, 2008: 119 , figs 22–28, 39.

Diagnosis. Medium size (about 3.4 mm length) and brown. Scape and pedicel light brown, postpedicel ovate and yellow; palpus yellow. Thorax brown, with brown reddish brown pruinescence anteriorly, and grey and golden pruinescense mixed on prescutellar disc and scutellum; one narrow dorsocentral stripe of dense yellowish grey pruinescence; pruinescence brown and sparse on sides of scutum; prosternum wide. Abdomen dark brown. Legs slender with femora slightly enlarged; yellow, except coxae and trochanters light brown, apex and base of hind femur brown and wide median light brown ring on hind tibia. Wing sub-hyaline with light brown, small and rectangular pterostigma.

Additional material examined. BRASIL. Amapá, Serra do Navio, 7.x.1957, J. Lane leg. (1 ♀, MZUSP); idem, 14.x.1957 (1 ♀, MZUSP); Amazonas, Manaus, Reserva F[lorestal] Adolpho Ducke, Platô Trilha Norte/Sul, 17.iv.–4.v.2007, Arm[adilha] Suspensa amarela, Sub-bosque, Freitas, G. & Freitas, Silva, R. A. Cols (1 ♂, INPA); Maués, Rio Abacaxis Flona Pau Rosa, 05°15′09″ S-58°41′ 52″W, 26–28.v.2008, J.A. Rafael e equipe, arm[adilha] suspense dossel a 30 m (1 ♂, 1 ♀, INPA); Pará, Belém, 20.vii.1970 (1 ♀, USNM); Mocambo, 23.i.1978, Arm. Malaise (1 ♀, MPEG); Belterra, Flona Tapajós, 100 m, 02°36′15″ S 54°56′ 35″W, 15–16.iv.2008, arm[adilha] luz, J.A. Rafael, F.F. Xavier F. (3 ♂, 2 ♀, INPA); Benevides, F. Morelandia, 14.xi.1986, J.A. Rafael (1 ♀, INPA); idem, PA 408, Km 0 6, Flight trap, 24.vi.1981, I.S Gorayeb (1 ♀, MPEG); Rondônia, Guajará-Mirim, R[io] Pacaás Novos, 11°11′13″ S 64°51′ 21″W, 7–11.x.1999, J. Vidal, Igapó, Arm[adilha] Malaise (1 ♀, INPA); Ariquemes, Rio Ji-Parana, 28.x.1986, 09°44′S 61°52′W, J.A. Rafael, Arm[adilha] Malaise (1 ♂, 3 ♀, INPA). FRENCH GUIANA. Raban, 2–3.ii.1965, Aitken, Guerra & Martinez (1 ♀, USNM). PERU. Iquitos, iii–iv.1931, R.C. Shannon (1 ♀, USNM); Dept. Loreto, Explorama Lodge, 80 km NE Iquitos no Rio Amazonas, 24.vi.–20.vii.1990, Menke & Avertschenko, Malaise (1 ♂, USNM). VENEZUELA. T. F. Amaz. Cerro da La Neblina Basecamp, 140 m, 0°50′N, 66°10′W, 20.ii.1985, At black light in rainforest clearing near Rio Baria, P.J. & P.M. Spangler, R. Faitoute, W. Steiner (1 ♂, USNM); idem, 5.ii.1985, on low foliage, rainforest trail, W.E. Steiner coll. (1 ♂, USNM).

Geographical distribution. Brazil (Amazonas, Pará, Rondônia*, Amapá*), French Guiana *, Peru * and Venezuela * ( Fig. 122 ).

Comments. Some specimens present general coloration darker, short and strong ventral setae throughout hind femur.

This species differs from the others species with large prosternum by the femora just lightly robust, small rectangular pterostigma, smaller size and features of the male terminalia.

Figures

FIGURE 122. Geographical distribution of S. pyramidatus, S. rafaeli, S. repletus, S. stigmaticalis and S. striatus in Amazon.