Neodexiopsis longialata, Couri & Gomes & Carvalho, 2023

Couri, Márcia Souto, Gomes, Lucas Roberto Pereira & Carvalho, Claudio José Barros de, 2023, Neodexiopsis Malloch (Diptera, Muscidae) from Ecuador: description of new species and a key to the species, Revista Brasileira de Entomologia (e 20230017) 67 (3), pp. 1-9 : 3-4

Neodexiopsis longialata new species urn:lsid:zoobank.org:act:A3116D73-5693-4D45-BCB6-5AC8AC93139C

( Figs 2A–G , 6B )

Diagnosis: The species is easily distinguished from the other Neodexiopsis recorded from Ecuador by the median large vittae on the male mesonotum and long and smoky wings.

Description: Male. Length: body: 5 mm; wing: 6.0–6.2 mm.

Color: General brown, with grey pollinosity.Parafacial, fronto-orbital plate, and gena with golden and silver reflections. Face and frons brown with gray pollinosity. Antenna and arista dark brown, pedicellum with apex yellow. Palpus brown.Calypteres uniformly whitish; halter yellow. Wing clear.Mesonotum brown with gray pollinosity; male with a large median brown vitta between the dorsocentral rows of setae, reaching apex of scutellum and two in intralar row, but less marked than the median one; females with mesonotum more uniformly brown. Pleurae brown, uniformly gray pollinose. Legs with coxae yellow with grey pollinosity; trochanter and femur yellow, except apices of the mid and hind femur, which are brown; tibia in male yellow on basal third and all yellow in female; tarsi brown in both sexes. Abdomen brown, a little shiny in males, and a faint brown longitudinal vitta in females.

Head: Eyes bare; inner and outer vertical setae long. Frontal row with five pairs of setae, only the fourth one long.Ocellar setae fine, long, forward-directed, and divergent from one another. Postpedicel about 3.0–3.2 times the length of the pedicel. Arista, very short pubescent.

Thorax: Acrostichal hairs very fine, pair pre-scutellar not developed. Presutural one; supra-alar one; post supra-alar one. Scutellum with a very long pair of basal setae and a very short and fine apical one. Anepisternum with ground setulae and four long setae, inferior one longer. Fore femur with anterodorsal and anteroventral complete rows of setae. Fore tibia on the posterior surface with a long median seta; dorsal and ventral surfaces with an apical seta. Mid femur with three anterior setae, each one inserted in each third; ventral surface with two fine setae on basal third and one on the apical third; posterior surface with two preapical setae. Mid tibia with one median anterodorsal and one submedian posteroventral setae; one dorsal pre-apical and one ventral and one dorsal apical. Hind femur with about 5–6 anterodorsal spaced setae and two anteroventrals on apical third. Hind tibia with anterodorsal and posterodorsal median seta, one ventral submedian, one long dorsal on the upper limit of the apical third, one dorsal preapical, and one strong ventral apical. Wing long.

Abdomen: Tergites 1 + 2 - 4 with one lateral pair of setae; tergite 5 with a series of setae on disc and apex. Sternite 5 ( Fig. 2A ) trapezoid with many apical setae.Sternite 7 and syntergosternite 7 + 8 as in Fig.2D .

Terminalia : Cercus is longer than wide and not extending beyond the surstylus apex ( Figs 2B, C ). Surstylus is long ( Fig. 2B, C ). Hypandrium tubular and long; phallapodeme with the same diameter in all extensions ( Fig. 2C ). The length of the pregonite is shorter than that of the postgonite ( Fig. 2C ).

Female: Similar to male, except for long and fine preapical posterodorsal seta absent on the fore tibia. Median anterodorsal seta absent on hind tibia. Ovipositor long; tergites and sternites narrow, sternites with setae at apex; epiproct as long as hypoproct; cerci long, with long seta on external margins ( Figs 2E and F ). Egg, as in Fig. 2G .

Material examined: Holotype male: ECUADOR: 13105. ( EC) Loja: Cajanuma Podocarpus National Park, Trail Bosque Nublado, 3000m, 20/02/2009 - 27/02/2009 ( YPT). Leg. Marc Pollet & Anja De Braekeleer , sorted by Marc Pollet – sample code EC/2009-34/ MP & ADB-002 ( UTPL).

Paratypes: Same label as holotype, 2♂♂, 1♀ ( DZUP), 1♂, 1♀ ( MNRJ); 13063 , 16/02/2009 - 20/02/2009, sample code EC/2009-31/ MP & ADB-001 ,

3♀♀ ( UTPL); 13064, 16/02/2009 - 20/02/2009, sample code EC/2009- 31/ MP & ADB-002 , 1♂, 2♀♀ ( DZUP); 13108, trail Los Miradores , ( WPT), sample code EC/2009-34/ MP & ADB-005 , 4♀♀ ( DZUP); 13109, trail Los Miradores , ( WPT), sample code EC/2009-34/ MP & ADB-006 , 1♀, 5♀♀ ( DZUP); 13153, trail Los Miradores , 27/02/2009 - 05/03/2009 ( BPT), sample code EC/2009-37/ MP & ADB-009 , 1♀ ( UTPL); 13154, trail Los Miradores , 27/02/2009 - 05/03/2009 ( BPT), sample code EC/2009-37/ MP & ADB-010 , 1♀ ( UTPL); 13115, trail Oso de antejos, sample code EC/2009-34/ MP & ADB-012 , 3♀♀, 1♂ ( DZUP); 13145, 27/02/2009 - 05/03/2009, sample code EC/2009-37/ MP & ADB-001 , 5♀♀ ( DZUP); 13068, trail Los Miradores , 16/02/2009 - 20/02/2009 ( WPT), sample code EC/2009-31/ MP & ADB-006 , 6♀♀ ( MNRJ); 13105, Trail Bosque Nublado, 3000m, 20/02/2009 - 27/02/2009 ( YPT). Leg. Marc Pollet & Anja De Braekeleer , sorted by Marc Pollet – sample code EC/2009-34/ MP & ADB-002 , 1♂ 1♀ ( MNRJ); 13105, trail Los Miradores , 20/02/2009 - 27/02/2009, sample code EC/2009-34/ MP & ADB-004 , 3♂♂, 6♀♀ ( MNRJ); 13107, trail Los Miradores , 20/02/2009 - 27/02/2009, sample code EC/2009-34/ MP & ADB-004 , 1♂, 11♀♀ ( MNRJ); 13112, trail Los Miradores , 3000m, 27/02/2009 - 05/03/2009 ( BPT) , 1♀ ( MNRJ); 13155, trail Oso de anteojos, sample code EC/2009-37/ MP & ADB-011 , 3♂♂ 1♀ ( UTPL) , 2♂♂ 1♀ ( RBINS /); 13170, trail Bosque Nublado , 3000m, 16/02/2009 - 05/03/2009 ( MT), sample code EC/2009-37/ MP & ADB-013 , 1♂ ( UTPL); 13066, trail Los Miradores , 16/02/2009 - 20/02/2009, sample code EC/2009-31/ MP & ADB-004 , 1♂ 2♀♀ ( UTPL) , 2♀♀ ( RBINS) , 1♂, 3♀♀ ( DZUP); 13074, trail Oso de Anteojos , 16/02/2009 - 20/02/2009, sample code EC/2009-31/ MP & ADB-012 , 3♂♂ 2 ♀♀ ( DZUP) , 2♀♀ ( RBINS); 13106, trail Los Miradores , 16/02/2009 - 20/02/2009, sample code EC/2009-31/ MP & ADB-012 , 5♀♀ ( UTPL) , 1♂, 4♀♀ ( RBINS /);13106, trail Los Miradores , 20/02/2009 - 27/02/2009, sample code EC/2009-34/ MP & ADB-003 , 3♂♂ 7♀♀ ( UTPL) , 1♂ 7♀♀ ( RBINS); 13065, trail Los Miradores , 16/02/2009 - 20/02/2009, sample code EC/2009-31/ MP & ADB-003 , 2♂, 7♀♀ ( DZUP); 13114, trail Oso de Anteojos , 20/02/2009 - 27/02/2009, sample code EC/2009-34/ MP & ADB-011 , 2♂♂ 5♀♀ ( UTPL) , 1♂ 2♀♀ ( RBINS /); 13146, 27/02/2009 - 05/03/2009, Bosque Nublado, 3000m, sample code EC/2009- 37/ MP & ADB-002 , 3♂♂, 7♀♀ ( DZUP); 13147, 27/02/2009 - 05/03/2009, sample code EC/2009-37/ MP & ADB-003 , 2♀♀ ( UTPL) , 2♀♀ ( RBINS);13104, 20/02/2009 - 27/02/2009, sample code EC/2009-34/ MP & ADB-001 , 4♀♀ ( MNRJ); 13149, 27/02/2009 - 05/03/2009 ( WPT), sample code EC/2009- 37/ MP & ADB-005 , 2♂♂ ( MNRJ); 13156, 27/02/2009 - 05/03/2009, sample code EC/2009-37/ MP & ADB-012 , 3♂♂ ( MNRJ) , 1♀ ( RBINS); 13064, 16/02/2009 - 20/02/2009, sample code EC/2009-31/ MP & ADB-002 , 4♂♂, 8♀♀ ( MNRJ). Zamora Chinchipe: 13050, San Francisco, Reserva Biológica San Francisco, trail Rio San Francisco , 2000m, 03º58’30’’S 79º04’25’’W, 13-18/02/2009 ( YPT). leg. M. Pollet & A. De Braekeleer , sorted by Marc Pollet – sample code EC/2009-30/ MP & AD , 1♀ ( RBINS); same label, except: 13102, trail Canal , 17-25/02/2009, EC/2009-33/ MP & ADB-015 , 1♂ ( RBINS); 13098, trail Canal , 18-25/02/2009 ( BPT), EC/2009-33/ MP & ADB-011 , 3♀♀ ( MNRJ); 13055, trail Canal , 2000m, 13/02/2009 - 18/02/2009 ( WPT), EC/2009-30/ MP & ADB-07 , 1♀ ( UTPL); 13062, trail Atajo , 14/02/2009 - 18/02/2009 ( YPT), EC/2009-30/ MP & ADB-014 , 1♀ ( DZUP); 13132, trail Canal , 25/02/2009 - 03/03/2009 ( YPT), EC/2009 , 1♂ ( DZUP) .

Etymology: The specific name is derived from the Latin words longi, meaning long, and ala, meaning wing, and refers to the long length of the wing.

Figures

Figure 2 Neodexiopsis longialata new species: A.Sternite 5, dorsal view; B.Cercal plate and surstylus,dorsal view; C.Cercal plate and surstylus and phallic complex, lateral view; D.Sternite 7 and syntergosternite 7 + 8, dorsal view; E. Ovipositor, dorsal view; F. Ovipositor, ventral view; G. Egg. Scale: 0.1 mm.

Figure 6 Neodexiopsis, habitus lateral view:A.N. bicoloratta new species, male paratype;B.N. longialata new species, female paratype;C.N. nigrocalyptrata new species, female paratype; D. N. plana new species, female paratype; E. N. secunda new species, male holotype.Scale:1.0 mm.