Oecetis knutsoni Flint

Martín, Paola Rueda, Gibon, Francois-Marie & Molina, Carlos Israel, 2011, The genus Oecetis McLachlan in Bolivia and northwestern Argentina (Trichoptera: Leptoceridae), with new species and identification key for males of Oecetis species from Mexico, Central and South America, Zootaxa 2821, pp. 19-38 : 27

publication ID	https://doi.org/ 10.5281/zenodo.277232
DOI	https://doi.org/10.5281/zenodo.6186083
persistent identifier	https://treatment.plazi.org/id/03C687EA-FFA1-FFCD-FF40-AEEA70AEFF06
treatment provided by	Plazi
scientific name	Oecetis knutsoni Flint
status

Treatment

Oecetis knutsoni Flint View in CoL

Fig. 8 View FIGURE 8

Oecetis knutsoni Flint 1981: 32 View in CoL (male, original description); Malicky 1983: 264 (distribution); Flint 1991a: 97 (distribution); 1996: 422 (distribution); Botosaneanu 1994: 51 (distribution).

This species is the largest of the genus in this its occurrence area. The length of each forewing is more than 12 mm and bears the typical dark spots at the forks and at the apical ends of the veins. Oecetis knutsoni View in CoL is commonly collected at light traps in northwestern Argentina in large numbers. In all specimens collected in northwestern Argentina and Bolivia, tergum X is composed of a paired small finger-like process between the preanal appendages and a rounded, membranous lobe above the phallic apparatus. This lobe is almost invisible. In figure 8B, it is illustrated for the first time.

Material examined. ARGENTINA: Jujuy: Parque Nacional Calilegua, Aº Tres Cruces, 28.xii.1997, ( IML) ― 1 male; Sierra de Santa Bárbara (lado E), Río Entre El Fuerte y Palma Sola, 16–17.ix.1998, E. Domínguez. C. Molineri & Ubero cols., ( IML) ― 1 male; Río Zapla, 24º16´03”S, 65º07´10”W, 31.v.2000, F. Romero, C. Molineri, V. Manzo & C. Nieto cols., ( IML) ― 1 male; Ledesma, Río Zora, 23º44´54”S, 64º42´04”W, 8.xi.1006, 411 msnm, C. Molineri col., ( IML) ― 9 males; Salta: Dpto Sta Victoria, Río Huaico Grande, 1600 m, 11.xi.2004, P. Rueda Martín col., ( IML) ― 3 males; Lipeo, Río Los Naranjos, 22º25´47”S, 64º44´20”W, 1109 m, 13.xi.2004, P. Rueda Martín col., ( IML) ― 25 males; BOLIVIA: Tarija: Arce, 22°12´9.2"S, 64°37´36,6"W, Orosa, La Mamora, 1100m, 04.x.2004, Molineri & Manzo, ( IML) ― 6 males. La Paz: Río Takesi, Puente Villa, 16°24'14”S, 67°38'31”W, 22.ii.2002, ( IML) ― 3 males. Río Solacama, 16.v.2003, ( IML) ― 1 male; 19.ix.2003, ( IML) ― 2 males. Río Santa–Catalina, 0 2. xi. 2002, ( IML) ― 1 male. Río Unduavi, Puente Villa, 16°24'8”S, 67°38'31”W, 22.ii.2002, ( IML) ― 10 males. Tributary of Río Unduavi, 16°23'58”S, 67°38'3”W, 21.ii.2002, (CBF-UMSA) ― 1 male. COLOMBIA: Quebrada La Mosca, 1 Km W Guarne, 7.ii.1983, O. S. Flint col., ( NMNH) ― 1 male. Distribution. Argentina (new record), Bolivia, Colombia, Guadeloupe, Peru, Venezuela.