Chalarus absonus Rafael, 1990

Ramos-Pastrana, Yardany, Marques, Dayse Willkenia A. & Rafael, José Albertino, 2023, Chalarus (Diptera: Pipunculidae) of Colombia, with description of two new species and an updated key to males of the Neotropical species, Acta Entomologica Musei Nationalis Pragae 63 (2), pp. 383-395 : 385

publication ID

https://doi.org/ 10.37520/aemnp.2023.024

publication LSID

lsid:zoobank.org:pub:B94E1D89-5827-404D-821F-2DA8339FFB58

persistent identifier

https://treatment.plazi.org/id/C00B8781-CC03-F154-582C-58A525881F6A

treatment provided by

Felipe

scientific name

Chalarus absonus Rafael, 1990
status

 

Chalarus absonus Rafael, 1990 View in CoL

( Figs 1–11 View Figs 1–11 ; 55 View Fig )

Chalarus absonus Rafael, 1990: 6 View in CoL , Figs 1–3 View Figs 1–11 .

Chalarus absonus View in CoL : JERVIS (1992: 346); DE MEYER (1996): 15; KEHLMAIER & ASSMANN (2010: 12); RODRÍGUEZ & RAFAEL (2012: 10, 16); ROD- RÍGUEZ et al. (2012: 121, Fig. 1c View Figs 1–11 ).

Chalarus spurius chilensis View in CoL : HARDY (1965): 2 (partim).

Material examined (1 J). COLOMBIA, Boyacá, SFF[Santuario de

Fauna y Flora] / Iguaque, Cab.[Cabaña] Chaina, / 05º25’N / 73º27’W,

2250 m [eters], / 01–14.feb[ II].2001, / A. Roberto M1271 (1 J IavH)

(photographed specimen).

Diagnosis. Male. Pedicel with two setae dorsally and two ventrally. Hind tibia with one stout seta medially. Surstyli with apices rounded, with medial lobes on inner margins, right surstylus with small medial lobe on outer margin; both surstyli with small sinus at junction with epandrium; right surstylus in lateral view with lower margin longer and more acute than left one. Left gonopod thinner than right one. Tip of distiphallus short and slightly rounded, with two phallic processes, one thinner and reaching only about half length of the other. Phallus trifid, all ejaculatory ducts situated at apex.

Intraspecific variability. We provide a comparison of the variations between the Colombian and Brazilian specimens (between parenthesis, when comparable). Male. Head ( Figs 1–2 View Figs 1–11 ). Occiput brown, gray-brown pruinose. Antenna ( Fig. 3 View Figs 1–11 ) brown; pedicel with two setae dorsally and two ventrally. Thorax ( Figs 2, 4 View Figs 1–11 ). Notopleuron brown, brown pruinose. Mediotergite brown, gray-brown pruinose. Wing ( Fig. 5 View Figs 1–11 ). Length 2.7 mm, width 1 mm. Membrane brown infuscated; pterostigma occupying 2/3 of third costal section (versus pterostigma occupying 1/2 of third costal section). Halter brown. Legs ( Fig. 1 View Figs 1–11 ) entirely dark brown, brown pruinose, except pulvilli light brown. Abdomen ( Figs 1–2, 6 View Figs 1–11 ). Tergite 1 light brown basally, dark brown posterolaterally; tergite 6 shorter than tergite 5; syntergosternite 8 brown, gray-brown pruinose, with long apical setae ( Figs 6–7 View Figs 1–11 ). Terminalia ( Figs 7–11 View Figs 1–11 ). Epandrium and surstyli brown ( Fig. 7 View Figs 1–11 ). Surstyli ( Figs 7–9 View Figs 1–11 ) subsymmetrical, completely setose and apices rounded, directed downward; both surstyli with medial lobes on inner margins; right surstylus with small medial lobe on outer margin ( Fig. 7 View Figs 1–11 ); right surstylus in lateral view with lower margin longer and more acute than left one ( Figs 8–9 View Figs 1–11 ). Gonopods subsymmetrical; left gonopod thinner than right one ( Figs 8–9 View Figs 1–11 ). Tip of distiphallus short and slightly rounded, with two phallic processes, one thinner and reaching only about half length of the other ( Fig. 10A View Figs 1–11 ). Ejaculatory apodeme parasol-shaped ( Fig. 11 View Figs 1–11 ). Phallus trifid, all ejaculatory ducts situated at apex in lateral and dorsal view ( Figs 10A–B View Figs 1–11 ).

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.

Geographical distribution. Argentina (Tucumán, Las Tipas) (RODRÍGUEZ et al. 2012), Brazil (São Paulo, Paraná) ( RAFAEL 1990), Colombia (Boyacá) (new record) ( Fig. 55 View Fig ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Pipunculidae

Genus

Chalarus

Loc

Chalarus absonus Rafael, 1990

Ramos-Pastrana, Yardany, Marques, Dayse Willkenia A. & Rafael, José Albertino 2023
2023
Loc

Chalarus absonus

KEHLMAIER C. & ASSMANN T. 2010: 12
DE MEYER M. 1996: 15
JERVIS M. A. 1992: 346
1992
Loc

Chalarus absonus

RAFAEL J. A. 1990: 6
1990
Loc

Chalarus spurius chilensis

HARDY D. E. 1965: 2
1965
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