Eoneria maldonadoi Aczél

Sepúlveda, Tatiana A., Wolff, Marta I. & De Carvalho, Claudio J. B., 2013, Revision of the Neotropical genus Eoneria Aczél (Diptera: Neriidae) with description of a new species from Colombia, Zootaxa 3636 (2), pp. 245-256 : 250-256

Eoneria maldonadoi Aczél

( Figs. 9–15 )

Eoneria maldonadoi Aczél 1961: 278 (description), 278 (key); 281 (figs. 2–3); Steyskal 1968: 2 (catalogue).

Diagnosis. Frontal vitta ochraceous pruinose, with a wide dark yellowish brown stripe from anterior margin of frons to ocellar tubercle. All femora dark yellowish brown with gray pruinescense. Veins R2+3 and M1, with 10 and 8 intercalated cross-veins, respectively, one cross-vein emerging from costa between apices of veins R2+3 and R4+5.

Male. Body length (excluding antenna and epandrium) 6.1 mm. Wing length 4.2 mm and width 1.3 mm. A dark yellowish brown species with partly yellow head and thorax; pleuron gray pruinose ( Fig. 9 ).

Head. Moderately elongate; 1.5 mm length and 1.1 mm width. Frons wide and concave; frontal vitta ochraceous pruinose, with a wide dark yellowish brown stripe from anterior margin of frons to ocellar tubercle ( Fig. 10 ). Fronto-orbital plate whitish yellow with three pairs of well developed setae, the posterior pair larger than the others and equal to inner vertical setae. Postocellar setae large and convergent; length 2.5 times the transverse diameter of ocellar tubercle; inner vertical setae slightly convergent, equal to outer vertical setae; outer vertical setae large and slightly divergent, subequal to postocellar setae. Ocellar tubercle blackish brown faintly white pruinose, triangular, large and only slightly raised, not delimited by lateral furrows, isolated in the median yellow vitta coming from the frons; ocellar plate slightly raised on the posterior margin of head between postocellar setae. Parafacial velvet brown with one yellow median spot. Face whitish yellow, wide and rounded with several tiny setulae on ventral margin. Vibrissa spine-like, subequal to genal setae. Gena subshiny whitish yellow, wide and ventrally rounded; with one genal spine-like seta half length of postocellar setae. Postgena posteriorly wide with a dense patch of long and weak pale setulae at posterior margin of head. Occiput yellowish brown pruinose with black short setulae towards posterior head margin; with one narrow yellow median vitta; length is half the height ( Fig 11 ). Antennal base subshiny dark yellowish brown with inner margins yellow; same length as width in dorsal view. Antennae 40% of head length. Scape testaceus yellow, darkened on lateral margins; 0.1 mm long. Pedicel colored as scape; 0.1 mm long, with strong black setulae on dorsal, ventral and distal margins; inner process of pedicel triangular and narrow, reaching the proximal half of first flagellomere. First flagellomere ochraceous whitish pubescent and ovate, slightly constricted in the distal third; length 1.5 times width. Arista inserted at dorsoapical margin of the first flagellomere, almost subapical.

Thorax. Yellowish brown pruinose with one dorsal faint gray pruinose vitta, as wide as scutellum, separated by a narrow median yellowish brown stripe; with one gray pruinose vitta covering the lateral margin of mesoscutum, the postpronotal lobe and the notopleuron throughout the alar base; pleuron densely pruinose; thoracic setae large and slender. Anterior notopleural setae straight and directed backwards; equal in length with posterior notopleural and half as long as the postalar setae. Posterior notopleural setae erect. Supra-alar setae subequal to postalar setae. Postalar setae curved and the longest thoracic setae. Six pairs of dorsocentral setae; two weaker presutural pairs, four postsutural pairs increasing in size towards scutellum, prescutellar pair the longest and subequal to postalar setae. Scutellum yellowish brown pruinose with a median yellow vitta narrow in the middle; lateral margins with one pair of hair-like subapical setae; distal margin faintly rounded with one pair of strong apical setae. Postpronotal lobe dark yellowish brown. Postpronotal carina shiny pale yellowish brown, projecting anteriorly to postpronotal lobe. Prosternum shiny yellowish brown linear with rounded anterior margin and separated from the proepisternal plate by one wide membranous area. Proepisternum yellow anteriorly and yellowish brown posteriorly, densely pruinose; with a brown seta above fore coxa, subequal to vibrissa. Katepisternum yellowish brown pruinose on ventral half and paler on dorsal half; with one black and straight seta, equal to supra-alar setae. Katatergite same color as pleuron; length 1.1 times the width. Anatergite and mediotergite yellowish brown and white pruinose.

Legs. Fore coxa yellowish brown and paler than the other coxae; whitish pruinose; with one antero-apical seta and one or two much weaker setae; anterior margin with several yellowish brown setulae and a row of three strong setae along anterolateral margin. Mid and hind coxae with two lateral setae each, one antero-apical seta accompanied by several weak setulae. All femora dark yellowish brown with gray pruinescense. Fore femur with several anteroventral and posteroventral spine-like setae and two dorsal distomedial setae ( Fig. 12 ). Mid femur anterior margin with a row of five median setae. Hind femur with several small anteroventral spine-like setae on distal fourth, two dorsal distomedial setae more conspicuous than the same setae on fore femur. Tibiae yellow with darkened apex and faintly white pruinescence; apex with several spine-like setae, which are stronger in mid and hind femora; covered by rows of short black setulae that are denser distally. Tarsi yellow, darkening distally.

Wing ( Fig. 13 ). Yellowish with yellowish brown veins and microtrichose. Basicosta with one dorsal seta and one ventral seta. Veins R2+3 and M1, with 10 and 8 intercalated cross-veins respectively, one cross-vein emerging from Costa between apices of veins R2+3 and R4+5.. Vein dm-cu straight, not oblique. Margins of upper and lower calypteres whitish yellow with fringe of long white hairs. Halteres whitish yellow, with orbicular knob blackish brown.

Abdomen. Velvet brown with short black setulae; with a median white pruinose vitta and each tergite with a pair of distinct white pruinose spots at anterior margin, which are broadly separated from lateral margin. Tergite 2 with one lateral seta, subequal to supra-alar seta and two setae on posterior margin. Tergite 6 longer and narrower than the others. Genitalia pale yellowish brown. Syntergosternum 7+8 subshiny and darker than epandrium; half of epandrium length. Epandrium pale yellowish brown with whitish pruinescence and short black setulae; extends to level of posterior margin of tergite 3. Anterior lobe of surstylus shiny yellow, linear and narrow with yellow setulae on apical margin. Posterior lobe of surstylus yellow and wide, with white pruinescense and yellow setulae ( Fig. 14–15 ).

Female. Similar to male, differs as follows: Body length (excluding antenna and oviscape) 7.1–7.4 mm. Wing length 5.1–5.3 mm and width 1.6–1.7 mm. Lateral margins of scutellum without subapical setae. Fore femur with only one dorsal distomedial setae. Oviscape subshiny dark yellowish brown; length 1.4 times maximum width. Segment 8 brown.

Type material examined. Holotype: female (without right wing), ARGENTINA: La Rioja, xi.1952 (MUL).

Other material examined. ARGENTINA: 1 male, La Rioja, 5 km S. de Chilecito, 28–29.x.1978, P. Sene & C. Viela (MZUSP); 1 female, 344, Vinagre D, La S. 9.ix.65; 1 female, R. A. Catamarca, Andalhuallas (2000m), 19.i.1968, Golbach-Terán-Willink/ Entomofauna subandina (MUL).

Distribution. Argentina.

Eoneria aczeli Sepúlveda & Carvalho , new species. ( Figs. 16–25 )

Diagnosis. Relatively small and pale compared to congeners. Body pale yellowish brown with white pruinescence Frontal vitta yellow pruinose. Three pairs of well-developed fronto-orbital setae, the anterior pair is weaker. Antennal base pale yellowish brown; distal margin with two or three small black setulae. Fore femur yellowish pruinose, with several anteroventral and posteroventral inconspicuous spine-like setae.

Male. Body length (excluding antenna and epandrium) 4.4 mm. Wing length 3.3 mm and width 1.1 mm. A pale yellowish brown specimen, with extensive pleural whitish pruinescense, including dorsally on the thorax ( Fig. 16 ).

Head. Moderately elongate; subconical; 1.1 mm length and 0.8 mm width. Frons very concave between compound eyes, especially on anterior margin; frontal vitta yellow pruinose. Head setae lost. Fronto-orbital plate testaceous yellow, covered with dense white pruinescense; narrowing anteriorly; with three pairs of well-developed setae, the anterior pair is weaker. Ocellar tubercle dark yellowish brown, rounded, well delimited by color, small and relatively raised; isolated from the yellowish brown pruinose vitta behind the eye. Parafacial velvet yellowish brown with one yellow median spot. Face whitish yellow pruinose, wide and straight, with several pale setulae close to the antennal base. Vibrissa strong, spine-like; half the length of the genal seta. Gena whitish yellow, wide and rounded. Postgena separated from occiput in a bend, giving rise to the yellowish brown pruinose vitta behind the eye; with a patch of several weak pale setulae at the posterior margin of head. Occiput yellowish brown pruinose with one narrow median yellow vitta, forming two separated yellowish brown pruinose vittae, each with one paler whitish median vitta, giving the impression of four yellowish brown vittae on the occiput; with black short and strong setulae towards posterior margin of the head; length is 30% of height ( Fig. 18 ). Antennal base pale yellowish brown, longer than wide in dorsal view; on distal margin with two or three small black setulae. Antennae half of head length. Scape colored as antennal base, dorsally with a brown spot; 0.1 mm long. Pedicel yellow, paler than scape but darker than first flagellomere; 0.2 mm long; inner process of pedicel elongate and triangular, reaching the proximal half of first flagellomere. First flagellomere testaceous yellow, whitish pubescent; posterior margin ovate; length 1.3 times width. Arista lost; inserted at dorso-apical margin of the first flagellomere.

Thorax. Yellowish brown and covered by yellow pruinescense; with one dorsal gray pruinose vitta, same width as scutellum, separated by a narrow median yellowish brown stripe ( Fig. 19 ); with one gray pruinose vitta covering the lateral margin of mesoscutum, the postpronotal lobe and the notopleuron throughout the alar base; pleuron densely covered by whitish pruinescense. Anterior notopleural setae large, strong and directed backwards; posterior notopleural setae lost. Six pairs of dorsocentral setae; two presutural pairs weaker and four postsutural pairs increasing in size towards the scutellum. Scutellum yellowish brown and white pruinose with a diffuse median yellow vitta; lateral margins faintly rounded with one pair of hair-like subapical setae; distal margin widely rounded with one pair of apical setae. Postpronotal lobe yellowish brown and yellow pruinose. Postpronotal carina shiny brown, projecting anteriorly to postpronotal lobes. Prosternum shiny yellowish brown, linear with rounded anterior margin and separated from the proepisternal plate by one wide membranous area. Proepisternum pruinose, with one seta equal in length with lateral scutellar setae. Katatergite rounded, as long as high, and, along with the anatergite and mediotergite, the same color and pruinescence as the pleuron.

Legs. Coxae pale yellowish brown, white pruinose with several pale short setulae. Fore coxa with one anteroapical seta and four setae on anterolateral margin. Mid coxa with two lateral setae: one median erect and one apical directed backwards; with one weak antero-apical seta, accompanied by several long black setulae. Hind coxa with two lateral setae accompanied by several black setulae; with one antero-apical seta and several pale setulae. Femora yellow and white pruinose. Fore femur with several anteroventral and posteroventral spine-like inconspicuous setae and one dorsal distomedial seta ( Fig. 20 ). Hind femur with two dorsal distomedial setae more conspicuous than the same seta on fore femur. Tibiae yellow with apex yellowish brown, covered by rows of short black setulae that are denser distally; mid and hind tibiae with one strong anteroventral spine-like seta on the apical margin and mid tibia also with several weaker setae. Tarsi yellow, with dense rows of black setulae.

Wing ( Fig. 21 ). Yellow tinged with yellow veins, without dark areas and microtrichose. Basicosta with one dorsal seta and one ventral seta. Margins of upper and lower calypter yellow, with fringe of white, long and conspicuous hairs. Halteres whitish orbicular.

Abdomen. Yellow pruinose with short black setulae; with one median paler yellow pruinose vitta. Tergite 2 with one lateral seta, subequal to anterior notopleural seta and two conspicuous setae on posterior margin. Tergite 6 longer, narrowing distally. Genitalia yellow. Syntergosternum 7+8 shiny, half of epandrium length. Epandrium yellow pruinose with weak black setulae, extending to middle of tergite 3. Anterior lobe of surstylus shiny, with two or three setulae on apical margin. Posterior lobe of surstylus large with white pruinescence and black setulae ( Fig. 22–23 ).

Female. Similar to male, differs as follows: Body length (excluding antenna and oviscape) 4.7–5.0 mm. Head 1.3–1.4 mm length and 1.0 mm width. Wing length 3.9–4.2 mm width 1.2–1.3 mm. Postocellar setae convergent, length 3.7–3.8 times the transverse diameter of ocellar tubercle; inner vertical setae straight and equal to postocellar and outer vertical setae; outer vertical setae divergent and reclinate. First flagellomere length 1.2–1.4 times width. Thoracic setae larger than in male. Anterior notopleural setae length, 70% of scutellar setae length. Posterior notopleural seta erect; equal to anterior notopleural seta. Postalar and supra-alar setae subequal to scutellar setae. Scutellar setae 1.5 times length of scutellum. Katepisternum with one seta equal to anterior notopleural seta. Oviscape ( Fig. 24 ) subshiny yellow with weak pruinescence, except on base; 2.6 times as long as maximum width. Segment 8 colored as oviscape and with several yellowish brown long setulae.

Material examined. Holotype: male, COLOMBIA: Magdalena, PNN Tayrona, Neguanje, 11°20´N, 74°2´W, 10m, Malaise, 21.iii.2001, R. Henriquez (IAvH).

Paratypes: COLOMBIA: 2 females, same data as holotype, except 21.iii. 5.iv.2001 and 5–21.iii.2001. (IAvH); 1 female, Atlántico, Barranquilla, Uniatlántico, 11°01´07.58´´N, 72°55´47.45´´W, 48m, VSR Fruta, Noche, 6.viii.2010, C. Valverde & E. Perdomo, CEUA 51504 (CEUA).

Distribution. Colombia.

Etymology. This new species is named after the Hungarian dipterist Dr. Martin Ladislao Aczél, for his dedication and contribution to the entomology of Diptera .

Acknowledgments

We thank Dr. Guillermo Claps (MUL) and Dra. Claudia Alejandra Medina Uribe (IAvH) for permission to study their materials. Thanks are extended to Dr. Arturo Roig Alsina from the Museo Argentino de Ciencias Naturales Bernardino Rivadavia (MACN) for the valuable information on the E. Blanchard´s collection. We also thank both, the Rede Paranaense de Coleções Biológicas (TAXon line) for the photos and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for the research grant (TAS proc. 130370 /2011-8; CJBC proc. 304713/2011–2). And thanks to James J. Roper for the English revision.

References

Aczél, M.L. (1949) Catálogo de la familia de las « Tylidae » (Calobatidae + Micropezidae + Neriidae, Diptera) en la Region Neotropical. Acta Zoológica Lilloana, 8, 309 –389.

Aczél, M.L. (1951) Morfologia externa y division sistemática de las «Tanypezidiformes» com sinopsis de las espécies argentinas de «Tylidae» («Micropezidae») y «Neriidae» (Dipt.). Acta Zoológica Lilloana, 11, 483 –589.

Aczél, M.L. (1961) A revision of American Neriidae (Diptera, Acalyptratae). Studia Entomologica, 4, 257 –346.

Buck, M. (2010) Neriidae. In: Brown B.V., Borkent, A., Cumming J.M., Wood, D.M., Woodley, N.E., Zumbado, M.A. (Eds.), Manual of Central American Diptera, Volume 2. NRC Research Press, Ottawa, pp. 815–819.

Buck, M. & Marshall, S.A. (2004) A review of the genus Longina Wiedemann, with descriptions of two new species (Diptera, Neriidae). Studia Dipterologica, 11, 23–32.

Cumming, J.M. & Wood, D.M. (2009) Morphology and terminology. In: Brown, B.V., Borkent, A., Cumming, J.M., Wood, D.M., Woodley, N.E., Zumbado, M.A. (Eds.) Manual of Central American Diptera, Volume 1. NRC Research Press, Ottawa, pp. 9–50.

Hennig, W. (1937) Üebersichtüeber die Arten der Neriiden und üeber die Zoogeographiedieser Acalyptraten-Gruppe. Stettiner Entomologische Zeitung, 98, 240 –280.

Koçak, A.Ö. & Kemal, M. (2009) A replacement name in the family Neriidae (Diptera). Centre for Entomological Studies, Miscellaneous Papers, 147–148, 11–12.

Steyskal, G.C. (1965) Family Neriidae. In: Stone, A., Sabrosky, C.W., Wirth, W.W., Foote, R.H., Coulson, J.R. (Eds.) Catalogue of Diptera of America North of Mexico, United States Department of Agriculture. Agriculture Handbook 276, Washington, p. 276, 637.

Steyskal, G.C. (1968) Family Neriidae. In: Papavero, N. (Ed.) A catalogue of Diptera of the Americas South of the United States. Departamento de Zoologia, Secretaria da Agricultura, São Paulo, 49, 1–7.

Steyskal, G.C. (1987) Neriidae. In: McAlpine, J.F., Peterson, B.V., Shewell, G.E., Teskey, H.J., Vockroth, J.R., Wood, D.M. (Eds.) Manual of Nearctic Diptera, Volume 2. Research Branch, Agriculture Canada, Ottawa, Ontario, Monograph 57, pp. 769–771.

Figures

FIGURES 9 – 10. Eoneria maldonadoi Aczél, male; 9. Habitus; 10. Head, dorsal view. Scales: 1 mm.

FIGURES 11 – 15. Eoneria maldonadoi Aczél, male; 11. Head, lateral view; 12. Fore leg, anterior view; 13. Wing; 14. Epandrium, lateral view; 15. Epandrium, dorsal view. Scales: 1 mm.

FIGURES 16 – 17. Eoneria aczeli Sepúlveda & Carvalho, new species, male; 16. Habitus; 17. Head, dorsal view. Scales: 1 mm.

FIGURES 18 – 25. Eoneria aczeli Sepúlveda & Carvalho, new species, male; 18. Head, lateral view; 19. Thorax, dorsal view; 20. Fore leg, anterior view; 21. Wing; 22. Epandrium, lateral view; 23. Epandrium, dorsal view. Female; 24. Oviscape, lateral view; 25. Oviscape, dorsal view. Scales: 1 mm.