Distribution: Mexico to Brazil; Jamaica; Dominican republic; Puerto Rico;
Type locality: Antigua.
Synonyms: Phalaena horologica (?) Goeze 1799; Nectua horologica
Lauron (Dioptis?) ergolis Walker 1854; Lauron domingonis
Hyalurga diastilba Hering 1925; Dioptis (Hyalurga?) rica
Hubner (incorrect synonymy?)
Source of record: I.O.J. collection.
Method of identification: illustrated in black and white by Todd (1982) figs. 9-15.
Notes: Todd (1982) suggests that this may not be one species throughout its
range - it certainly seems immensely variable and the name H. diastilba has
been applied (correctly?) to some Jamaican specimens, which may be a separate
species or subspecies, which have a much reduced pattern of yellow on the wings
and only a thin white apical forewing bar (as illustrated by Seitz, plate
65, fig. f4, see next species). More work is needed on this species or species
complex. The caterpillar is described in Forbes (1930) and the larval
foodplant is given by Todd as Heliotropium indicum L., H. angiospermum
Murray and Tournefortia hirsutissima L. The specimen I illustrate here
is from the Cayman Islands - the image was kindly supplied by Joanne Mercille
of Grand Cayman.
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