Leucotrichia riostoumae Thomson & Holzenthal
publication ID |
https://dx.doi.org/10.3897/zookeys.499.8360 |
publication LSID |
lsid:zoobank.org:pub:7F1EE873-CBBC-476B-984D-F483D91B4901 |
persistent identifier |
https://treatment.plazi.org/id/60CCD9CC-E241-45E9-8880-3162973C0527 |
taxon LSID |
lsid:zoobank.org:act:60CCD9CC-E241-45E9-8880-3162973C0527 |
treatment provided by |
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scientific name |
Leucotrichia riostoumae Thomson & Holzenthal |
status |
sp. n. |
Taxon classification Animalia Trichoptera Hydroptilidae
Leucotrichia riostoumae Thomson & Holzenthal sp. n. Fig. 38
Diagnosis.
This species is similar to Leucotrichia forrota and Leucotrichia inops . These species share a similar combination of characteristics present in the phallus, as discussed under Leucotrichia forrota . Of these species, Leucotrichia riostoumae sp. n., is most similar to Leucotrichia inops , as discussed under Leucotrichia inops . Leucotrichia riostoumae can be distinguished by the rugose ventral surface of the mesoventral process of sternum VII, which is lacking in Leucotrichia inops . The membranous ridges along the apex of the phallus, which give it a star-like appearance when viewed dorsally, are also a feature unique to Leucotrichia riostoumae .
Description.
Male. Length of forewing 3.6-4.2 mm (n=11). Head unmodified, with 3 ocelli; antennae unmodified. Dorsum of head dark brown with yellow and dark brown setae; thorax dark brown with bright yellow setae dorsally, dark brown ventrally; leg segments with dark brown setae. Forewings covered with fine dark brown setae with large patch of yellow setae on basal 2/3. Genitalia. Abdominal sternum VII with digitate, rugose mesoventral process with small basal ridge. Sternum VIII in ventral view with posterior margin concave. Segment IX anterolateral margin produced dorsolaterally, posterolateral margin convex; in dorsal view anterior margin concave, posterior margin broadly convex. Tergum × with dorsal sclerite simple; ventral sclerite with rounded projection on posterior margin; membranous apex small. Subgenital plate with dorsal arm digitate, broadest basally; ventral arm slender, digitate, in ventral view triangular. Inferior appendage basally subquadrate, apex rounded, without dorsal spine; in ventral view apically digitate. Phallus with basal loop not apparent; apex curving ventrad and laterad, with series of membranous spines appearing stellate in dorsal view.
Holotype male: ECUADOR: Imbabura: Reserva los Cedros, Río de la Plata, 00.32495°N, 78.78084°W, el. 1587 m, 18.x.2011, Holzenthal, Ríos, Encalada, and Acosta, (UMSP000140832) (UMSP). Paratypes: same data as holotype, 5 males (UMSP); same data as holotype, 3 males (MZUTI); same data as holotype, 2 males (NMNH).
Etymology.
Named in honor of Dr. Blanca Ríos-Touma, an aquatic ecologist and colleague who helped collect the holotype specimen.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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