Chlorotabanus leucochlorus Fairchild, 1961

(Figure 7 A–E)

Chlorotabanus (Chlorotabanus) leucochlorus Fairchild, 1961:437, fig. 2, 439–440.

Chlorotabanus leucochlorus, Fairchild, 1969: 208 (classification); 1971: 55 (catalog); Henriques & Gorayeb, 1993: 9 (MPEG collection); Fairchild & Burger, 1994: 87 (catalog); Henriques, 1995: 69 (INPA collection); Krolow & Henriques, 2008: 270 (male description and terminalia); Coscarón & Papavero, 2009b: 68 (catalog); Krolow & Henriques, 2009: 204 (citation).

Type locality: Brazil (AP, Serra do Navio).

Diagnosis: Medium size (12.8–16.5 mm), snow-white thorax, greenish-yellow abdomen. Eyes with narrow, elongate frons (F.I. 6.0–7.7). Antenna with elongate basal plate about 2.5x stylus length.

Redescription (Holotype Ψ): Body length 14.3 mm (Fig. 7 A–B); wing length 13.2 mm; wing width 4.4 mm.

Head (Fig. 7 C): Black eyes. Narrow, elongate frons, slightly convergent towards base, F.I. 7.7, D.I. 1.5, snow-white pruinosity, white hairs. Subcallus, gena, parafacialia and face with pruinosity as frons. Gena, parafacialia and face with dense white hairs and subcallus with less dense hairs. Palpus yellow; first segment of palpus with white hairs, second segment with yellow hairs and some black hairs on the anterior region. Proboscis with greenish-yellow theca; black labella. Antenna (Fig. 7 D): scape yellow with white and yellow hairs; pedicel yellow with yellow hairs; flagellum greenish-yellow without pilosity except for some hairs on the dorsal elevation of the basal plate and on the stylus; elongate basal plate (B.P.I. 1.6) about 2.5x stylus length (Flg.I. 2.5).

Thorax: Scutum with orangish integument, with snow-white pruinosity (in all views), snow-white hairs and a few black hairs on the notopleural lobe and the mid-posterior region of scutum; scutellum, post-pronotal lobe, post-alar callus and pleura with snow-white pruinosity and pilosity. Slender legs; coxae (anterior region 2/3) with pruinosity and pilosity as thorax, posterior 1/3 with yellowish pilosity; trochanters, femora, tibiae and tarsomeres greenish-yellow with yellow pilosity, except at the dorsal apex of fore tibia, with few black hairs and the 2/3 of the hind tibia (in dorsal view) with two rows of black hairs to the last tarsomere. Hyaline wing (Fig. 7 E), yellowish, except for the darkened-yellow basal costal and costal cells. Greenish-yellow veins, except for the darkening of the transverse veins; costal vein with yellow hairs and some black hairs; no appendix at the fork in the R4+5 vein; greenish pterostigma; alular incisions with black spot.

Abdomen: Dark yellowish with green pigments, covered by shiny yellow hairs except beginning at the fifth tergite, where distal transversal bands of black hairs; sternites similar to tergites.

Variations: Eyes vary from grayish, bronzy, dark red to black; pedicel can have thick black hairs; appendix in R4 +5 vein often absent and when present, usually poorly developed. Some specimens have a distal transversal band of black hairs on the first tergite. Body length 12.8–16.5 mm (X = 14.4 mm, N = 20); wing length 11–13.5 mm (X = 11.9 mm, N = 20); wing width 3.5–4.5 mm (X = 4.0 mm, N = 20); F.I. 6.0–7.7 (X = 6.7, N = 20); D.I. 1.3–1.5 (X = 1.3, N = 20); B.P.I. 1.5–1.8 (X = 1.6, N = 20); Flg.I. 2.1–3.3 (X = 2.5, N = 20). Male: as Krolow & Henriques (2008).

Distribution: Colombia, Venezuela, Guyana, Brazil (Amapá, Amazonas, Pará, Maranhão, Rondônia). Holotype Ψ: deposited in the MZSP. In good condition, except the loss of the apical extremity of the left wing.

Type-material examined: “SERRA do NAVIO\ Terr. Amapá BRASIL \ 24.x.1957 \ J. Lane leg.” “ Chlorotabanus \ ( Chlorotabanus) \ leucochlorus Fchld \ HOLOTYPE ” (Ψ, MZSP).

Additional material examined: COLOMBIA. Dept. Amazonas: (30 km aval de La Chorrera, Rio Igaraparana), 23.iii.1974, (J. Desplats), 1Ψ, (MNHN); VENEZUELA. T.F. Amaz. (Cerro de la neblina base camp, 140m, 0°50’N; 66°10’W, Malaise trap in rainforest: baited w. methyl salicilate), 17.ii.1985 (P. Spangler, R. Faitoute, W. Steiner) 1Ψ(USNM); idem (base camp, Cerro de la neblina, 0°51’N; 66°10’W, Malaise trap, 140m), 13–24.iii.1984 (O. Flint & J. Louton) 2Ψ (USNM); idem (Agua Blanca, 0°49’N; 66°10’W, 160m), 20–21.iii.1984, (O. Flint & J. Louton) 1Ψ (USNM); Bolivar (Rio Karuai 16mi. N. Kavanayen, 1000m), 10–11.viii.1970 (R.E. Dietz) 1Ψ (USNM); GUIANA. Courantyne River, iv.1936 (C.A. Hudson), 1Ψ, Chlorotabanus leucochlorus, det. J. E. Chainey 198?, (NHM); BRAZIL. Amazonas: Barcelos (Igarapé Erere/Coruja, 000616N; 635101W, arm. luz), 18–25.vi.2008 (F. F. Xavier F°), 1ɗ, (INPA); idem (Rio Demeni, Pirico, 001930S;624721W, Armadilha malaise em igarapé), viii.2008 (A. Silva & R. Machado), 1Ψ, (INPA); Beruri (Rio Purus, 035662S;612102W, Arm.[dilha] Malaise), x.2002 (F. F. Xavier & U. C. Barbosa), 1Ψ, (INPA); idem (Rio Purus, 035662S;612102W, Malaise), vii.2003 (Xavier), 2Ψ, Chlorotabanus leucochlorus Fchld, det. A.L. Henriques 2003, (INPA); Borba (Rio Abacaxis, Paxiúba, 042848 S;583424W, armadilha suspensa), 0 2–0 4.vi.2008 (J. A. Rafael e equipe), 1Ψ, (INPA); Coari (Rio Urucu, 045156S;650456W, luz mista de mercúrio), 11–18.v.1991 (P. F. Bührnheim, N. O. Aguiar & N. F. Fé), 2Ψ, (CZPB); idem (Angelim, 050333 S;651448W, luz mista de mercúrio), 23.xi–02.xii.1992 (P. F. Bührnheim & N. O. Aguiar), 1Ψ, (CZPB); idem (Petrobras, RUC-30, luz mista de mercúrio), 07–14.ix.1992 (P. F. Bührnheim & N. O. Aguiar), 1Ψ, (CZPB); idem (Petrobras, RUC-29, luz mista de mercúrio), 5–10.ii.1992 (P. F. Bührnheim, N. O. Aguiar & N. F. Fé), 1Ψ, Chlorotabanus leucochlorus Fchld, det. A. L. Henriques 1995, (INPA); idem (Rio Urucu, RUC, Luz mista de mercúrio), 25.ii.–10.iii.1995 (Bührnhein P. F. et al.), 1ɗ, (INPA); idem (Rio Urucu, Igarapé Marta-3, 045073S;650237W, Luz mista de mercúrio), 14–25.viii.1993 (Bührnhein P. F. et al.), 1ɗ, (INPA); Japurá (Est.[ação] Ecol.[ógica] Nac.[ional] Juami-Japurá, 014514S;670658W, Armadilha Malaise), 23–39. ix.2004 (F. F. Xavier-Filho & M. Oliveira), 1Ψ, Chlorotabanus leucochlorus (without det.), (INPA); Lábrea (Ramal Apaeral, Km 0 9, Sitio São Raimundo, 071910 S;644007W, Armadilha Malaise), vi.2006 (F. F. Xavier F°), 1Ψ, (INPA); Manaus (ZF-2, Arm.[dilha] suspense torre 30m), 9–22.ix.1994 (J. A. Rafael & J. Vidal), 1Ψ, Chlorotabanus leucochlorus Fchld, det. A. L. Henriques 1995, (INPA); idem (BR 174, Faz.[enda] Porto Alegre, Malaise), vii.2002 (L. Aquino), 1Ψ, (INPA); idem (BR 174, 021928 S;600513W, Malaise), 7–10.v.2002 (L. Aquino), 1Ψ, C. leucochlorus (without det.), (INPA); idem (Campo do Tupana, ca. 120 Km S. Manaus, alojamento mata, 041572 S;601313W, noite, expedição Geoma), 03.vii.2007 (H. F. Guariento), 1Ψ, (INPA); idem (PDBFF /WWF Proj. Bert Klein, Malaise), viii.1985 (unknown), 1Ψ, (INPA); Manicoré (Cachoeira, 052944 S;604921W, Floresta úmida, Malaise de solo), ix.2004 (Silva & Pena), 1Ψ, (INPA); Maués (Rio Abacaxis, 051509 S;584152W, malaise), 27–29.v.2008 (J. A. Rafael e equipe), 3Ψ, (INPA); idem (Rio Abacaxis, 051509 S;584152W, Arm. Luminosa no dossel), 28–29.v.2008 (J. A. Rafael e equipe), 1ɗ, (INPA); Novo Airão (Parque Nacional do Jaú, Rio Unini, Bacaba, 014552S;620511W, Arm[adilha] Malaise), 14–19.vi.1996 (A. L. Henriques, J. Vidal & F. L. Oliveira), 1Ψ, Chlorotabanus leucochlorus Fchld, det. A. L. Henriques 1996, (INPA); idem (Parque Nacional do Jaú, Rio Carabinani, Ig.[arapé] Preguição, 020625 S-613620W, Arm.[adilha] Malaise), 29–31.vii.1995 (J. A. Rafael & J. Vidal), 1Ψ, Chlorotabanus leucochlorus (without det.), (INPA); idem (Parque Nacional do Jaú, Carabinani, Arm. Malasie), 27.iv–03.v.1995 (J. A. Rafael & J. Vidal), 1Ψ, leucochlorus (without det.), (INPA); idem (Parque Nacional do Jaú), 11–30.x.1993 (J.F. Vidal), 1Ψ, C. leucochlorus (without det.), (INPA); idem (Parque Nacional do Jaú, 015427S;613510W, Campinarana baixa, Arm.[adilha] Malaise), 8– 16.iv.2001 (Henriques & Vidal), 1Ψ, Chlorotabanus leucochlorus Fchld, det. A. L. Henriques 2001, (INPA); idem (Parque Nacional do Jaú, Igarapé Miratuca, 015708S;614919W, Luz mista mercúrio luz negra, BL and BLD, lençol), 26–27.vii.1995 (Motta, C. S.; Xavier F°, F. F. et al.) 1ɗ, (INPA), idem, sem data (Andreaze, R.; Costa, W.; Aquino, L.), 1ɗ, (INPA); idem (Rio Carabinani, armadilha luminosa), 17.iv.1994 (Motta, C.), 1ɗ, (INPA); idem (Parque Nacional do Jaú, Ig.[arapé] Miratuca, 015780S;614919W, Malaise), undated (R. Andreaza, W. Costa & L. Aquino), 1Ψ, C. leucochlorus (without det.), (INPA); idem (Ramal dos Madeireiros, km 1, luz mista de mercúrio), 5–10.iv.1997 (P.F. Bührnheim, N. O. Aguiar & N. F. Fé), 1Ψ, (CZPB); idem (Rio Jaú, Mereti), 4–10.vi.1994 (J. A. Rafael), 1Ψ, (INPA); Novo Aripuanã (Lago Xadá, 051539 S;604232W, Armadilha Malaise), iv.2005 (F. Xavier, F. Godoi, & A. Lourido), 1Ψ, (INPA); Presidente Figueiredo (AM 240, km 24, 020105 S;594959W, armadilha malaise), 04–08.ix.2008 (T. K. Krolow & F. F. Xavier Fº), 2Ψ, (INPA); idem (AM 240, km 24, 020105 S;594959W, coleta em eqüino), 04–08.ix.2008 (T. K. Krolow & F. F. Xavier Fº), 1Ψ, (INPA); AM 240, Km 24 (020055S;594940W, luz mista de mercúrio), viii.2005 (Xavier- Filho), 1Ψ, (INPA); Rio Juruá (Minerauzinho, 033485S;665915W, luz mista de mercúrio), 25.i.1996 (P. Bührnheim & N. Otaviano), 3Ψ, 1ɗ, (INPA); Rio Urubu (021000 S;584800W), 14–15.xii. [19]82 (P. Bührnheim & Neliton Silva), 1Ψ, (CZPB); Toototobi, 30xi.1977 (I.S. Gorayeb), 1Ψ, (MPEG); Tefé (Locação São Mateus, 044324S;654006W, Luz mista de mercúrio), 07–16.ix.1994 (Bührnhein P. F. et al.) 1ɗ (INPA); Rod[ovia] AM 0 10 km 153 (atacando o gado), 6.vii.1977 (I. S. Gorayeb), 1Ψ, Chlorotabanus leucochlorus Fchld, det. [G. B.] Fairchild 1981, (MPEG); São Gabriel da Cachoeira (Morro 6 Lagos, Arm.[dilha] Malaise), 28.ix–6.x.1990 (J. A. Rafael & J. Vidal), 1Ψ, (INPA); Resex Unini (Rio Unini, Lago 3 Bocas, 013413S;625854W, Armadilha Malaise terra firme), 14–28.vii.2004 (M. L. Oliveira, A. Silva F° & L. Aquino), 1Ψ (INPA); Pará: Paragominas (Luz, Cachoeira do Rio Vermelho), 15–18.i.1991 (J. Dias, R. B. Neto), 1Ψ, Chlorotabanus leucochlorus Fchld, det. A.L. Henriques 1992, (MPEG); Maranhão: Araguanã (Res. Índio Awaguajá, Alto Rio Turiaçú, isca eqüina), 17–20.iii.2002 (F. L. Oliveira & J. T. Câmara), 1Ψ, C. leucochlorus (without det.) (INPA); Rondônia: Guajará-Mirim (Rio Ouro Preto, Bananal, 105823S;650539W, Terra firme, em cavalo), 23.x.1995 (A. L. Henriques), 1Ψ, leucochlorus (without det.), (INPA).

Discussion: C. leucochlorus is easily distinguished from the rest due to the thorax covered with snowwhite pruinosity and hairs in addition to some black hairs on the notopleural lobe.