Leucotrichia alisensis

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Taxonavigation

Ordo: Trichoptera
Familia: Hydroptilidae
Genus: Leucotrichia

Name

Leucotrichia alisensis Rueda Martín, 2011 – Wikispecies link – Pensoft Profile

• alisensis Rueda Martín, 2011: 4 [Type locality: Argentina, Tucamán, Parque Nacional Campo de Los Alisos, Río de las Pavas; IML; male metamorphotype; larva, pupa].

Diagnosis

Leucotrichia alisensis is similar to Leucotrichia yungarum; in each, the ventral arm of the subgenital plate is acute in lateral view and the apex of the inferior appendage is digitate in ventral view. Additionally, the shape of the inferior appendage in lateral view is similar in both species, particularly the rounded basal area. Leucotrichia alisensis can be recognized by the V-shaped concave posterior margin of sternum VIII, which is U-shaped in Leucotrichia yungarum, and by the curved anterolateral projection which is absent in Leucotrichia yungarum.

Description

Redescribed from Rueda Martín (2011). Male. Head unmodified, with 3 ocelli; antennae unmodified. Genitalia. Abdominal sternum VII with mesoventral process not apparent. Sternum VIII in ventral view with posterior margin concave with small mesal emargination. Segment IX anterolateral margin with curved ventrolateral projection, posterolateral margin irregular. Membranous apex of tergum × slender, extending posteriad, with mesodorsal projection. Subgenital plate with dorsal arm not apparent; ventral arm narrow, apex acute. Inferior appendage rounded basally, apex digitate; in ventral view basally subquadrate. Phallus apex with light dorsal sclerites.

Material examined

Holotype male: Holotype deposited at IML, but could not be obtained.

Etymology

Named for the National Park Campo de Los Alisos, Tucamán, Argentina, the location where the holotype was collected.

Taxon Treatment

• Thomson, R; Holzenthal, R; 2015: A revision of the Neotropical caddisfly genus Leucotrichia Mosely, 1934 (Hydroptilidae, Leucotrichiinae) ZooKeys, (499): 1-100. doi

Images

Figure 6. Leucotrichia alisensis Rueda Martín, 2011 (redrawn from Rueda Martín 2011). Male genitalia: A segments IX–X, lateral B apex of segment IX and inferior appendage, ventral C segment VIII, ventral D phallus, lateral.