Ithytrichia
Eaton, 1873
Ithytrichia is a of microcaddisflies ( Hydroptilidae) established by Eaton in 1873. The genus contains at least two described , I. aquila and I. bosniaca. Members of this genus are found in Europe and the Americas, with distribution records from Colombia, Denmark, Norway, and Sweden. Like other Hydroptilidae, these are small with reduced wing venation.
Pronunciation
How to pronounce Ithytrichia: /ɪˈθɪtrɪkiə/
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Identification
Ithytrichia can be distinguished from other hydroptilid by genitalic characters, particularly male claspers and structure. The genus belongs to the tribe Orthotrichiini, which is characterized by specific wing venation patterns and reduced spur formula on the legs. Definitive identification requires examination of genitalia under magnification.
Images
Distribution
Europe and the Americas. Documented occurrences include Colombia (Tolima), Denmark, Norway, and Sweden.
Similar Taxa
- HydroptilaBoth are of Hydroptilidae with small body size; distinguished by genitalic and wing venation patterns
- OrthotrichiaSame tribe (Orthotrichiini); separation requires detailed examination of male genitalia and antennal structure
More Details
Species diversity
Only two are formally documented in available sources: Ithytrichia aquila (described from Colombia in 1988) and Ithytrichia bosniaca (described from Bosnia in 1948). The may be undercollected due to the small size of hydroptilid .
Taxonomic history
The was established by Alfred Edwin Eaton in 1873. It has been consistently placed in Hydroptilidae, though tribal assignment to Orthotrichiini reflects more recent phylogenetic revisions of the .