Aphestia dikowi, Camargo & Vieira & Rafael, 2024

Camargo, Alexssandro, Vieira, Rodrigo & Rafael, José Albertino, 2024, Taxonomic review of Aphestia Schiner, 1866 (Diptera: Asilidae: Laphriinae) with description of seven new species, Zootaxa 5436 (1), pp. 1-80 : 36-40

publication ID

https://doi.org/ 10.11646/zootaxa.5436.1.1

publication LSID

lsid:zoobank.org:pub:42656763-C43A-4762-9678-EBE40136907B

persistent identifier

https://treatment.plazi.org/id/BE56C95F-B60B-4755-B83F-3E412862F186

taxon LSID

lsid:zoobank.org:act:BE56C95F-B60B-4755-B83F-3E412862F186

treatment provided by

Plazi

scientific name

Aphestia dikowi
status

sp. nov.

Aphestia dikowi sp. nov.

LSID urn:lsid:zoobank.org:act:BE56C95F-B60B-4755-B83F-3E412862F186

( Figs 3B, E View FIGURE 3 , 20–22 View FIGURE 20 View FIGURE 21 View FIGURE 22 , 39 View FIGURE 39 )

Diagnosis. Frons white pruinose, slightly golden medially ( Fig. 20C View FIGURE 20 ); mystacal macrosetae yellowish, setae whitish ( Fig. 20C–D View FIGURE 20 ); fore and mid femora dark brown, hind femur with basal half yellow and distal half dark reddish brown ( Fig. 20B View FIGURE 20 ); cercus with distinct posterolateral digitiform projection ( Figs 3E View FIGURE 3 , 21A, E View FIGURE 21 , 22A View FIGURE 22 ).

Description. Holotype male ( Figs 20A–E, G–H View FIGURE 20 , 21 View FIGURE 21 ). Head ( Fig. 20C–D View FIGURE 20 ): black, white pruinose, except frons medially slightly golden ( Fig. 20C–D View FIGURE 20 ), vertex white to golden and occiput brownish dorsally; orbital setae yellowish; semi-triangular apruinose spot between base of antennae and base of ocellar tubercle; mystacal macrosetae yellowish, setae whitish ( Fig. 20C–D View FIGURE 20 ); ocelli yellow-ochre, 2 yellowish ocellar setae; vertex pruinosity forming a V towards occiput, yellowish setose; 14 yellowish postocular macrosetae; occipital and lower occipital setae white, except dorsally yellowish; proboscis shining black, proboscial setae white and labial yellowish; palpus black, yellowish setose ( Fig. 20C–D View FIGURE 20 ). Antenna: black, sparsely yellowish white pruinose and black setose, except scape with some yellowish setae ventrally; postpedicel with sensorial area dark brown occupying almost the entire anteroventral surface ( Fig. 20E View FIGURE 20 ).

Thorax ( Fig. 20A–B, G View FIGURE 20 ): black, white pruinose, except postpronotum and lateral margins of scutum yellowish white; postpronotal lobe apex reddish; postalar callus reddish brown ( Fig. 20G View FIGURE 20 ). Chaetotaxy: mostly white to yellowish white setose, except punctations golden setose, lateral margins of scutum with few black setae, katatergite and anatergite slightly yellowish setose; macrosetae: 2 notopleural (1 black), 1 supra-alar, 2 postalar ( Fig. 20G View FIGURE 20 ), 4 marginal scutellar ( Fig. 20G View FIGURE 20 ) and 2 posterior anepisternal yellowish.

Wings ( Fig. 20H View FIGURE 20 ): translucent, with reddish brown microtrichia denser on distal half; veins brown, vein C dark brown; cell r 5 open; halteres yellow.

Legs ( Fig. 20B View FIGURE 20 ): coxae black, white pruinose; fore and mid trochanters dark brown; hind trochanter black; fore and mid femora dark brown, anterior portion, basal and distal extremity reddish; hind femur with basal half yellow and distal half dark reddish brown; fore and mid tibiae yellow-ochre basally becoming brown towards apex; hind tibiae with basal half yellow and distal half brown; tarsi reddish brown. Chaetotaxy: coxae white setose; trochanters yellowish setose; femora yellowish white setose; fore femur with 1 anterior, 2 dorsal distal and 2 posterodorsal yellow macrosetae; mid femur with 2 anterior and 3 dorsal distal yellow macrosetae; hind femur with 1 anteroventral, 2 anterior, 1 anterodorsal and 3 dorsal distal yellow macrosetae; tibiae with macrosetae and setae yellowish, except hind tibia with dorsal black setae; tarsi with tarsomeres 1–2 with dorsal and ventral yellowish macrosetae, tarsomeres 3–5 with dorsal black and ventral yellowish macrosetae; brush setae yellowish white to golden; claws black; empodium and pulvilli yellowish.

Abdomen ( Fig. 20A–B View FIGURE 20 ): black, punctate with golden setae, laterally white setose; T1 with 4, T2 with 2, T3– 5 with 1 and T6 with 8 yellowish lateral marginal macrosetae; sternites dark brown with a reddish-brown band posteriorly, sparsely whitish setose; S1–4 white pruinose and S5–7 yellowish pruinose.

Terminalia ( Fig. 21 View FIGURE 21 ): reddish brown, expect gonocoxite black; yellowish white to yellowish setose; ellipsoid in dorsal and ventral views ( Fig. 21A–B View FIGURE 21 ); epandrium truncate posteriorly with few dorsal setae ( Fig. 21A, E View FIGURE 21 ); cercus rectangular anteriorly, with a posterolateral digitiform projection with setae dorsally ( Fig. 21A, E View FIGURE 21 ); subepandrial sclerite with a rod-like posterior projection, acuminate apically and setose ( Fig. 21A, E View FIGURE 21 ); gonocoxite rectangular basally and conic posteriorly, setose, except anterior ventral part asetose ( Fig. 21C, G–H View FIGURE 21 ); gonostylus rod-like with setae apically ( Fig. 21C, G–H View FIGURE 21 ); hypandrium cordiform ( Fig. 21F View FIGURE 21 ); phallus with short prongs ( Fig. 21I–K View FIGURE 21 ); parameral sheath coniform posteriorly ( Fig. 21I View FIGURE 21 ); parameral apodeme directed anteriorly and ventrally ( Fig. 21I–K View FIGURE 21 ); ejaculatory apodeme fan-shaped, weakly sclerotized distally ( Fig. 21J View FIGURE 21 ).

Length. Body: 10.6 mm; wings 10 mm.

Holotype condition. Scape with ventral macrosetae missing; terminalia dissected.

Female ( Figs 20F View FIGURE 20 , 22 View FIGURE 22 ). Similar to male, except postpedicel sensorial area smaller ( Fig. 20F View FIGURE 20 ) and terminalia reddish brown, with concolor setae; T 9+ T 10+cercus with a posterolateral digitiform projection, indented mid-posteriorly, sparsely setose dorsally ( Fig. 22A View FIGURE 22 ); hypoproct conic ( Fig. 22B View FIGURE 22 ); S8 almost trapezoidal, V-shaped mid-anteriorly, mid-laterally with a slight concavity and truncate mid-posteriorly, sparsely setose on posterior half ( Fig. 22C View FIGURE 22 ); spermathecae with 3–4 turns, more sclerotized than ducts; sperm pump extremely dilated; accessory gland oval ( Fig. 22D View FIGURE 22 ).

Variation. In some specimens the colour of the dark parts of the legs is yellow, with only the apical tarsomeres black. The semi-triangular apruinose spot between base of antennae and base of ocellar tubercle is not visible in all specimens.

Etymology. dikowi : a patronym to Dr Torsten Dikow, Asilid researcher at Smithsonian Institution, National Museum of Natural History (NMNH), Washington, USA.

Distribution. Colombia (Amazonas) and Brazil (Amazonas, Pará, Maranhão, Tocantins, Mato Grosso, Goiás and Distrito Federal) ( Fig. 39 View FIGURE 39 ).

Phenology. The largest number of collecting events for this species was observed in November and December (Tab. 1), coinciding with the southern hemisphere’s late spring and early summer.

Taxonomic discussion. The main feature differentiating Aphestia dikowi sp. nov. from other species is the cercus with a distinct digitiform posterolateral projection ( Figs 3E View FIGURE 3 , 21A, E View FIGURE 21 , 22A View FIGURE 22 ).

Material examined. Holotype. [ BRASIL], Campinas[Goiânia], Goyaz[Goiás], Borgmeier et S. Lopes xii– 935[1935] // Holótipo Aphestia dikowi sp. nov. (♂ CEIOC). Paratypes. MT [Mato Grosso], Chap.[ada] Dos Guimarães P.N.[Parque Nacional] Chapada dos Guimarães Mata Ciliar— 577m Trilha Cachoeira Véu da Noiva S 15°24’33.0” W 55°49’54.9” Malaise 16, 08.xi–01.xii.2011 Lamas, Nihei & eq.[equipe] col.[coletora] SISBIOTA CNPq/Fapesp (1♂ MZUSP); pq.[Parque] Nac.[ional] Chapada dos Guimarães, Fazenda Aurora, S15°26’52”/ W55°38’36” Malaise 06–12.xi.2008 Almeida col. (1♂ MZUSP); Goiás, Corumbá, F.[Fazenda] Monjolinho, Nov.[embro] 1945, Barreto col. (1♂ MZUSP); Same data, 11–[1]945 / Aphestia nigra ( Bigot, 1878) M. Carrera det. [1]946 (1♀ MZUSP); Campinas[Goiânia] Goyaz[Goias], Borgmeier et S. Lopes, xii–[1]935 / Aphestia nigra ( Bigot, 1878) M. Carrera det. [19]44 / EMBRAPA / MNRJ 7292 (1♂ MNRJ); Jataí / F.M. Oliveira xi.[19]71 (2♂ & 1♀ MNRJ); Same data, xi. [19]72 (1♂ & 2♀ MNRJ; 1♂ INPA). Additional material. COLOMBIA. Amazonas: PNN[Parque Nacional Natural], Amacayacu, Mocagua, 150m, 3°41’S, 70°15’W 14/ 21–viii 2000 A. Parente coll. #853 (1♀ COEF); BRASIL. Pará: Tucuruí, Morro do Senador 035923S 494445W, 01.xii. / 2001 J.A. Rafael & J. Vidal Arm.[adilha] suspensa alta (1♂ & 1♀ INPA); C.[Conceição do] Araguaia 19–31.i.1983 / J.A. Rafael Arm.[adilha] malaise (2♂ INPA); AM [Amazonas]: Marão[Maraã]— R. Japurá Maguari 3 a 7.x1988 / Armadilha 20 m Suspensa / Brasil AM J. Dias (1♂ MPEG); Manaus ZF–03 Faz. Esteio 27.12.1985 Klein, Bert / 1301 FLORESTAL 2°23’03”S / 59°51’15”W Armadilha Malaise R.E.N.2 0020633 (1♀ INPA); Same data, 0020634 (1♀ INPA); MA[Maranhão]: Açailândia, Faz.[azenda] Itabaiana 050527S–470558W, 07.xii.2001, J.A. Rafael; F.L. Oliveira & J. Vidal, Malaise (1♀ INPA); BR [ ASIL], TO[Tocantins], Paraná [Paranã] xi.2009 1° camp.[anha] N. Bragança (1♂ & 1♀ INPA); Goiás: Corumbá, F.[Fazenda] Monjolinho, Nov.[embro] 1945, Barreto col. (1♂ & 4♀ MZUSP); Same data, 11–[1]945 / Aphestia nigra ( Bigot, 1878) M. Carrera det. [1]946 [one of the females has no label of collecting site, but with the same identification label, leading to believe that it belongs to the same collecting site as the other specimens] (3♀ MZUSP); Jataí / F.M. Oliveira xi.[19]71 (2♂ & 1♀ MNRJ); Same data, xi. [19]72 (17♂ & 6♀ MNRJ; 2♂ & 1♀ INPA); Brasília- DF[Distrito Federal], UnB-FA, Córrego da Capetinga, 09–23/nov/2017 / UNB 017311, 017131 (1♂ & 1 ♀ INPA); Same data, 08–22/dez/2017, Malaise/L. Flores col. / UNB 017527 (1♂ INPA).

T

Tavera, Department of Geology and Geophysics

MT

Mus. Tinro, Vladyvostok

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

INPA

Instituto Nacional de Pesquisas da Amazonia

AM

Australian Museum

R

Departamento de Geologia, Universidad de Chile

MPEG

Museu Paraense Emilio Goeldi

BR

Embrapa Agrobiology Diazothrophic Microbial Culture Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Asilidae

Genus

Aphestia

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