Leucotrichia lerma Angrisano & Burgos, 2002,

Thomson, Robin E. & Holzenthal, Ralph W., 2015, A revision of the Neotropical caddisfly genus Leucotrichia Mosely, 1934 (Hydroptilidae, Leucotrichiinae), ZooKeys 499, pp. 1-100: 29-30

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Leucotrichia lerma Angrisano & Burgos, 2002


Taxon classification Animalia Trichoptera Hydroptilidae

Leucotrichia lerma Angrisano & Burgos, 2002  Fig. 29

lerma  Angrisano & Burgos, 2002: 106 [Type locality: Argentina, Salta, Río Lesser, 18 km NW Salta; IML; male].


This species is most similar to Leucotrichia brochophora  , Leucotrichia padera  , and Leucotrichia rhomba  sp. n. These species share a similar form in the apex of the phallus, sternum VIII, and segment IX, as discussed under Leucotrichia brochophora  . Leucotrichia lerma  differs from these species in the hooked appearance of the lateral sclerite of tergum × and the subtriangular appearance of the inferior appendage in ventral view.


Redescribed from Angrisano and Burgos (2002). Male. Length of forewing 2.9 mm (n=1). Head unmodified, with 3 ocelli; antennae unmodified. Genitalia. Abdominal sternum VII with slender, elongate mesoventral process. Sternum VIII in ventral view with posterior margin concave with row of prominent setae. Segment IX anterolateral margin produced mesally, posterolateral margin convex. Tergum × with lateral sclerite with apicoventral hook on posterior margin. Membranous apex of tergum × amorphous. Subgenital plate with dorsal arm not apparent; ventral arm tapering apically, apex slightly hooked dorsad. Inferior appendage digitate, apex hooked dorsally, bearing single dorsal spine; in ventral view subtriangular. Phallus apex bearing pair of ventral sclerites.

Material examined.

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


Named for Valle de Lerma, the location where the holotype was collected.