A revision of the Neotropical caddisfly genus Leucotrichia Mosely, 1934 (Hydroptilidae, Leucotrichiinae) Author Thomson, Robin E. Author Holzenthal, Ralph W. text ZooKeys 2015 499 1 100 http://dx.doi.org/10.3897/zookeys.499.8360 journal article http://dx.doi.org/10.3897/zookeys.499.8360 1313-2970-499-1 7F1EE873CBBC476B984DF483D91B4901 7F1EE873CBBC476B984DF483D91B4901 Taxon classification Animalia Trichoptera Hydroptilidae Leucotrichia adela Wells & Wichard, 1989 † Fig. 5 † adela Wells & Wichard, 1989: 42 [Type locality: Dominican Republic NMNH; male; in amber]. Diagnosis. This species is known only from the male fossil holotype preserved in Dominican amber. While some characteristics of Leucotrichia adela were originally described as difficult to examine and understand, Wells and Wichard (1989) did remark that the species shared similarities in the shape and form of abdominal segment IX and the genitalia with those of Leucotrichia chiriquiensis and Leucotrichia tubifex . It seems appropriate to place it in the melleopicta species group, due to the presence of 3 ocelli, an unmodified head, and a mesoventral process on sternum VII. Description. Redescribed from Wells and Wichard (1989) . Male. Length of forewing 1.4 mm (n=1). Head unmodified, with 3 ocelli; antennae unmodified. Tibial spur count 1, 3, 4. Genitalia. Genitalia obscured and difficult to interpret. Abdominal sternum VII with slender, elongate mesoventral process. Sternum VIII in ventral view with posterior margin concave. Posterior margin of segment IX concave in dorsal view. Membranous apex of tergum x rounded. Inferior appendage bract-like. Material examined. Holotype male: Fossil holotype deposited at NMNH, but unable to be located. Etymology. Unknown.