Diaphorina Löw, 1880

Rendón-Mera, Diana Isabel, Serna, Francisco & Burckhardt, Daniel, 2017, Generic synopsis of the jumping plant-lice (Hemiptera: Sternorrhyncha: Psylloidea) from Colombia, Zootaxa 4350 (3) : -

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https://doi.org/ 10.11646/zootaxa.4350.3.2

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Diaphorina Löw


Diaphorina Löw View in CoL View at ENA

( Figs 19 View FIGURES 10 – 27 , 63 View FIGURES 59 – 70 , 80 View FIGURES 77 – 80 )

Diagnosis: Head and thorax granular and finely hairy. Head as wide as or slightly wider than pronotum; vertex 1.5–2.5 times as broad as long; genal processes well developed, of various size and shape ( Fig. 19 View FIGURES 10 – 27 ). Antenna 0.6– 1.0 times head width; apex black and slightly thicker; third segment slightly longer than fourth. Forewing from ellipsoidal to pyriform, widest in the middle or in apical half; frequently with pattern of brown maculae ( Fig. 63 View FIGURES 59 – 70 ); costal break present; pterostigma very narrow and elongate; cell m1 longer than cu1. Meracanthus large, hornshaped; metatibia without genual spine and with 5–9 apical spurs; metabasitarsus with 2 apical spurs. Male proctiger with hind-margin strongly bulged. Aedeagus 3-segmented.

Biology and damage: Diaphorina citri is a major citrus pest in Asia and America as it is vector of the bacteria Candidatus Liberibacter spp., the causal agents of the devastating citrus greening disease or Huanglongbing (HLB) ( Bové 2006; Botero et al. 2014). HLB symptoms include developing of yellow shoots and leaves with a blotchy mottled appearance, which can become asymmetrical, thicker with enlarged and eventually corky veins; the fruits are small, loop-sided with colour inversion and dark aborted seeds ( Bové 2006; Gottwald et al. 2007).

Host-plants: Species of the genus feed on plants from different orders ( Burckhardt 1984; Hollis 1987b), although D. citri develops exclusively on rutaceous hosts ( Aubert 1987).

Distribution: Restricted to warmer regions of the Old World. D. citri has been introduced into the New World from tropical Asia ( Ouvrard 2017).— Colombia: Diaphorina citri ( King 2012) .

Remarks: D. citri is found in Colombia in all areas where its host occurs (ICA 2012). In 2015 a new bacterial species, Candidatus Liberibacter caribbeanus, was reported from both D. citri and Citrus sinensis from the department of Córdoba, although it is not clear if it causes HLB-like symptoms ( Keremane et al. 2015). Moreover, that same year, the pathogen Candidatus Liberibacter asiaticus was detected in the department of La Guajira ( EPPO 2016) and the Colombian Agricultural Institute declared the country in state of phytosanitary emergency (ICA 2015).

Examined material: Diaphorina citri : Antioquia: 4 (male, female), Medellín, Univ. Nal. Col., 6°15'46"N, 75°34'40"W, 1479 m, 09-Oct-2012, Murraya paniculata (S. Fuel) , UNAB 1093; 4 (male, female), Tarso, 629 m, 8- Jul-2010, on citrics (J. Palacino), ICN 0 82012. Caldas: 4 (male, female), Chinchiná, 4°36'11"N, 74°4'53"W, 1312 m, 22-Jun-2010, Citrus x limon (M. Melo) , ICN 082030; 4 (male, female), Manizales, 5°4'34"N, 75°31'32"W, 1143 m, 22-Jun-2010, Citrus reticularata (M. Melo) , ICN 082035; 4 (male, female), Supía, 5°27'1"N, 75°38'56"W, 898 m 22-Jun-2010, Citrus x limon (M. Melo) , ICN 082032; 4 (male, female), Supía, 5°27'1"N, 75°38'56"W, 898 m, 22-Jun-2010, Citrus reticulata (M. Melo) , ICN 0 82028. Caquetá: 3 (female), Doncello, 1°41'24"N, 75°17'4"W, 398 m, 06-Sep-2014, Citrus reticulata (H. Arévalo) , UNAB 1094. Córdoba: 4 (male, female), Chinu, 9°03'76,8"N, 75°46'74,1"W, 94 m, 23-Jun-2010, Citrus x sinensis (N. Villareal) , ICN 082048; 4 (male, female), S. Andrés de Sotavento, 9°17'55.7"N, 75°49"93,9"W, 13 m, 28-Jun-2010, Citrus x paradisi (N. Villareal), ICN 082046; 4 (male, female), Montería, 32 m, 23-Jun-2010, Citrus x sinensis (A. Jiménez) , ICN 0 82045. Cundinamarca: 4 (male, female), Tocaima, 4°25'2,6"N, 74°42'34,99"W, 365 m, 12-Jun-2010, on orange (E. Ebratt), ICN 082022; 4 (male, female), Girardot, 4°17'55,26"N, 74°48'27,45"W, 281 m, 24-Jun-2010, on orange (E. Ebratt), ICN 082021; 4 (male, female), Fusagasugá, 4°20'20,64"N, 74°21'48,72"W, 1760 m, 9-Feb-2010, on orange (E. Ebratt), ICN 082017; 4 (male, female), La Mesa, 4°37'50,86"N, 74°27'43,56"W, 1273 m, 9-Mar-2011, on orange (E. Ebratt), ICN 082016; 4 (male, female), La Vega, 4°58'29,48"N, 74°19'40,62"W, 1293 m, 12-Mar-2011, Citrus reticulata (E. Ebratt) , ICN 0 82014. Huila: 9 (male, female), Campoalegre, Vda. Los Rosales, Estación Las Mulas , 2°36'59"N, 75°25'52"W, 607 m, 06-Sep-2014, Citrus limon (D. Rendón) , UNAB 1094. Magdalena: 4 (male, female), Guamal, 9°10'24"N, 75°15'25,1"W, 38 m, 15-Jun-2010, Citrus x sinensis (E. López) , ICN 0 82037. Norte de Santander: 4 (male, female), Cucutá, 8°23'67,1"N, 72°30'44,2"W, 375 m, 9-Jun-2010, Citrus limon (A. Betancour) , ICN 0 82025. Quindío: 4 (male, female), La Tebaida, 4°27'N, 75°47'W, 880 m, 15-Jun-2010, on orange (J. Palacino), ICN 082052; 4 (male, female), Quimbaya, 4°38'N, 75°46'W, 1013 m, 15-Jun-2010, on orange (J. Palacino), ICN 0 82050. Tolima: 4 (male, female), Espinal, 328 m, 9-Jun-2010, Citrus limon (E. W. King) , ICN 082034; 4 (male, female), Espinal, 335 m, 9-Jun-2010, on orange (E. W. King), ICN 082020; 4 (male, female), Coello, 287 m, 9-Jun-2010, on orange (E. W. King), ICN 0 82019. Valle del Cauca: 1 (female), Yotoco, El Dorado, Valle del Dorado, 3°50'04"N, 76°27'37"W, 609 m, 27-Nov-2013, Citrus x limonia (D. Rendón), UNAB 1094; 4 (male, female), Caicedonia, 1185 m, 07-Jul-2010, Citrus x sinensis ‘Valencia’ (C. Gómez), ICN 082049; 4 (male, female), Caicedonia, 1194 m, 8-Jul-2010, Citrus x sinensis ‘Salustiana’ (C. Gómez), ICN 082047; 4 (male, female), Roldanillo, 4°38'08"N, 76°14'81"W, 937 m, 17-Jun-2010, Citrus x sinensis ‘Valencia’ (C. Gómez), ICN 082043; 4 (male, female), La Unión, 972 m, 4°52'092N, 76°09'58"W, 18-Jun-2010, Citrus x latifolia (C. Gómez), ICN 082042; 4 (male, female), Toro, 975 m, 18-Jun-2010, Citrus x latifolia (C. Gómez), ICN 082040; 4 (male, female), Candelaria, 3°39'59,9"N, 76°37'87,7"W, 621 m, 18-Jun-2010, Citrus x sinensis ‘Sweety’ (A. Arenas), ICN 0 82038.











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