Dasydorylas nigellus ( Rafael, 1991 )
publication ID |
https://doi.org/ 10.5852/ejt.2024.932.2517 |
publication LSID |
lsid:zoobank.org:pub:1137F37F-AF51-44E2-8D3E-3C68992029A5 |
DOI |
https://doi.org/10.5281/zenodo.11127164 |
persistent identifier |
https://treatment.plazi.org/id/03CE8793-803C-804E-FDB0-85D7FB27F998 |
treatment provided by |
Plazi |
scientific name |
Dasydorylas nigellus ( Rafael, 1991 ) |
status |
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Dasydorylas nigellus ( Rafael, 1991)
Figs 27–39 View Figs 27–39 , 53 View Fig
Eudorylas nigellus Rafael, 1991: 156 View in CoL , figs 12–16, 37.
Dasydorylas nigellus – Rafael & Ale-Rocha 2004: 12.
Diagnosis
Male
Postpedicel with acuminate apex. Vein M 1 straight. Fore and mid femora with conspicuous ventral ctenidia; hind femur without ventral ctenidia. Tergite 1 completely covered by brown pruinosity, with spot dark brown pruinose dorsocentrally and six black and long setae laterally; tergites 2–4 with posterior thin margins brown pruinose; tergite 5 with posterior wide margin gray-brown pruinose. Surstyli equal to epandrium length I dorsal view. Both surstyli thickened in basal half, thin in distal half, with apices outwards-directed; both surstyli with tips downward-directed and rounded apex when seen in lateral view. Apex of phallic guide stout, with margin slightly straight in lateral view. Ejaculatory apodeme funnel-shaped. Phallus trifid, thin, with ducts distinctly separated only in the apex.
Material examined
COLOMBIA – Boyacá • 1 ♂; “ SFF [Santuario de Fauna y Flora] Iguaque , Cab. [Cabaña] Mamaramos ; 06°26′ N, 73°27′ W; 2855 m [eters]; 13–30.Jul [VII].2000; P. Reina leg.”; IAvH M380 (photographed specimen) GoogleMaps .
Intraspecific variability
Male
Rafael (1991) provided a complete description and illustrations of the Brazilian holotype; however, we found variations in the Colombian specimens, therefore, we provide a comparison of the variations between the Colombian and Peruvian specimens (in parentheses, when applicable).
MEASUREMENTS. Wing length 5.9 mm.
HEAD ( Figs 27–28 View Figs 27–39 ). Eyes contiguous for 20 facets. F, EM, V (mm) = 0.3, 0.5, 0.1. Frontal triangle dark brown, gray-brown pruinose, with callus shiny dark brown (vs frontal triangle opaque black, with callus shiny black in the holotype). Occiput brown, gray-brown pruinose. Antenna ( Fig. 29 View Figs 27–39 ) brown, pedicel with two setae dorsally, three ventrally; postpedicel with acuminate apex (vs antenna black, pedicel with three setae dorsally and four setae ventrally; see Rafael 1991: fig. 12). LPP/WPP = 2.9.
THORAX ( Figs 27–28, 30 View Figs 27–39 ). Postpronotal lobe dark brown, brown pruinose, with four long setae along upper margin (vs postpronotal lobe opaque black). Scutum dark brown, gray-brown pruinose, with dorsocentral setae conspicuous (vs scutum opaque black, brown pruinose). Notopleuron concolorous with scutum (vs notopleuron opaque black, brown pruinose). Scutellum concolorous with scutum (vs opaque black, brown pruinose). Mesopleuron and mediotergite brown, gray-brown pruinose (vs mesopleuron and mediotergite black, brown pruinose).
WING ( Fig. 31 View Figs 27–39 ). Length 5.9 mm. LW/MWW = 3.9; LTC/LFC = 1.9. Membrane brown infuscated, vein M 1 straight. Halter stem dark brown, except beige third medial, knob dark brown.
LEGS ( Fig. 27 View Figs 27–39 ). Coxae dark brown, gray-brown pruinose (vs coxae black); trochanters brown, brown pruinose (vs trochanters black); femora dark brown, gray-brown pruinose, except brown apices (vs femora black); tibiae dark brown, gray-brown pruinose, except basal quarter; tarsomeres 1–4 brown, 5 brown; pulvilli yellowish brown.
ABDOMEN ( Figs 28, 32 View Figs 27–39 ). Ground color velvety dark brown, with inconspicuous scattered setae; tergite 1 completely covered by brown pruinosity, with spot dark brown pruinose dorsocentrally (vs abdomen opaque black, gray pruinose) and six black and long setae laterally; tergites 2–4 with posterior thin margins brown pruinose; tergite 5 with posterior wide margin gray-brown pruinose; tergites and sternites 6 and 7 as in Fig. 33 View Figs 27–39 . Syntergosternite 8 dark brown, gray-brown pruinose, shorter than tergite 5, with a membranous area apically ( Fig. 32 View Figs 27–39 ) (vs Syntergosternite 8 acuminate, larger than tergite 5; see Rafael 1991: fig. 13).
TERMINALIA ( Figs 33–39 View Figs 27–39 ). Epandrium and surstyli dark brown ( Fig. 34 View Figs 27–39 ). Surstyli ( Figs 34–36 View Figs 27–39 ) subsymmetrical, equal to epandrium length, setose marginally. Both surstyli thickened in basal half, thin in distal half, with apices outwards-directed in dorsal view ( Fig. 34 View Figs 27–39 ); left surstylus slightly thinner than right ( Fig. 34 View Figs 27–39 ) (vs surstylus long; see Rafael 1991: fig. 15), both surstyli with tips downward-directed and rounded apex when seen in lateral view ( Figs 35–36 View Figs 27–39 ). Gonopods asymmetrical; right gonopod slightly thicker than left in ventral view ( Fig. 37 View Figs 27–39 ). Apex of phallic guide stout, with apex hook-shaped and upper margin slightly straight in lateral view ( Fig. 37 View Figs 27–39 ). Ejaculatory apodeme funnel-shaped ( Fig. 39 View Figs 27–39 ). Phallus trifid, thin, with ducts distinctly separated only in distal quarter ( Figs 37–38 View Figs 27–39 ).
Female
Unknown.
Geographical distribution
Colombia (Boyacá) (new record), Peru (Huánuco) ( Fig. 53 View Fig ).
Habitat
The specimen was collected in the Santuario de Fauna y Flora Iguaque reserve, where the vegetation is composed of cloud Andean forests of the cordillera of the Northeast region of Colombia.
V |
Royal British Columbia Museum - Herbarium |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Dasydorylas nigellus ( Rafael, 1991 )
Ramos-Pastrana, Yardany, Marques, Dayse Willkenia A. & Rafael, José Albertino 2024 |
Dasydorylas nigellus
Rafael J. A. & Ale-Rocha R. 2004: 12 |
Eudorylas nigellus
Rafael J. A. 1991: 156 |