Leucotrichia dinamica Bueno-Soria, 2010,

Thomson, Robin E. & Holzenthal, Ralph W., 2015, A revision of the Neotropical caddisfly genus Leucotrichia Mosely, 1934 (Hydroptilidae, Leucotrichiinae), ZooKeys 499, pp. 1-100: 16-17

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Leucotrichia dinamica Bueno-Soria, 2010


Taxon classification Animalia Trichoptera Hydroptilidae

Leucotrichia dinamica Bueno-Soria, 2010  Fig. 16

dinamica  Bueno-Soria, 2010: 23 [Type locality: Mexico, Distrito Federal, Delgación Magdalena-Contreras, Parque "Los Dinamos"; CNIN; male].


Leucotrichia dinamica  is distinct from all other species in the genus due to the presence of the large scissor-like apical sclerites on the phallus apex (Fig. 16F). The semielliptic sclerite found on the basal loop of the phallus midlength complex is also unique to Leucotrichia dinamica  .


Male. Length of forewing 5.1 mm (n=1). Head unmodified, with 3 ocelli; antennae unmodified. Color in alcohol brown. Genitalia. Abdominal sternum VII with acute mesoventral process with apex enlarged in ventral view. Sternum VIII in ventral view with posterior margin concave. Segment IX anterolateral margin produced dorsolaterally, posterolateral margin irregular; in dorsal view anterior margin concave, posterior margin straight. Tergum × with dorsal sclerite simple; ventral sclerite semielliptic with tridentate posterior margin; membranous apex truncate. Subgenital plate with dorsal arm slender, arched mesally, apex slightly hooked dorsad; in ventral view, ovate and produced apically with small emargination; ventral arm digitate, apex slightly hooked dorsad, in ventral view oval. Inferior appendage dorsomesally “humped,” apex acute, bearing single dorsal spine; in ventral view with elongate basal projection strongly bent inward, apex strongly curved outward. Phallus with basal loop with mesal semielliptic sclerite and removed from “windows,” apex bearing pair of elongate internal sclerites and pair of scissor-like apical sclerites.

Material examined.

Holotype male: MEXICO: Distrito Federal: Delegación Magdalena-Contreras, Parque "Los Dinamos," elev. 3091 m, 29.vi.2007, M. Razo and R. Juarez (in alcohol) (UMSP000140694) (CNIN).


Named for Los Dinamos, the location where the holotype was collected.