Porphyrogenes sula (R. Williams & E. Bell, 1940);  Comments: Honduras, possibly Costa Rica TL: Honduras.

Porphyrogenes sula ♂ caterpillar, penultimate instar
COSTA RICA: Alajuela Prov.: Area de Conservacion Guanacaste,
Sector Rincon Rain Forest, Sendero Rincon, 430m, 1-XI-2008, larva died of disease
voucher code 08-SRNP-42084, image code 08-SRNP-42084-DHJ449573.jpg
image from http://janzen.sas.upenn.edu/

Comment: This specimen has been identified as P. spina in the following publication: Burns, John McLauren, Daniel H. Janzen, and Winifred Hallwachs 2010. Of many similar species in the Neotropical genus Porphyrogenes (Lepidoptera: Hesperiidae), a new one, repeatedly reared in Costa Rica, is relatively distinct. Proceedings of the entomological Society of Washington 112(1): 32-42, 20 figs., 1 tab. p. 41-42.