Occidentalia Explained

Occidentalia is a monotypic moth genus of the family Crambidae described by Harrison Gray Dyar Jr. and Carl Heinrich in 1927.^[1] It contains only one species, Occidentalia comptulatalis, described by George Duryea Hulst in 1886. It is found in North America, where it has been recorded from Alberta, Indiana, Maine, Manitoba, Minnesota, New York, Ontario, Quebec and Saskatchewan.^[2]

The wingspan is 23–26 mm. Adults are on wing from mid-July to August in one generation per year.

The larvae feed on Scirpus acutus, Scirpus americanus and Scirpus validus.^[3]

Notes and References

1. Web site: Nuss . M. . etal . 2003–2017 . GlobIZ search . Global Information System on Pyraloidea . December 22, 2017.
2. http://mothphotographersgroup.msstate.edu/species.php?hodges=5474 "800786.00 – 5474 – Occidentalia comptulatalis – (Hulst, 1886)"
3. Web site: Bird, C. D. . Schmidt, B. C. . amp . April 24, 2003 . Species Details: Occidentalia comptulatalis . University of Alberta Museums . E.H. Strickland Entomological Museum . December 28, 2020.