New species of <i>Euhapigiodes, </i>new genus, and <i>Hapigiodes </i>in Hapigiini, new tribe, from Costa Rica, with notes on their life history and immatures (Lepidoptera: Notodontidae).
Two new species of Notodontidae from the lowland dry forests of the Area de Conservacion Guanacaste, northwestern Costa Rica are described: Hapigiodes sigifredomarini n. sp. and Euhapigiodes hallwachsae n. sp. in Euhapigiodes, n. gen. The larvae of both feed on Lonchocarpus (Fabaceae). Pseudhapigia misericordia Dyar is moved to Hapigiodes as a new combination. Hapigiodes and Euhapigiodes are relatives of Hapigia, and would previously have been placed in the tribe Hemiceratini of Forbes, but comparison of adults and larvae of Hapigiodes, Euhapigiodes and Hapigia with Hemiceras yields the result that the Hemiceratini is polyphyletic. Thus, Hapigiini is erected as a new tribe of 9 genera, provisionally placed in the notodontid subfamily Heterocampinae. The larvae and adults of 8 hapigiine species from Costa Rica are figured, and their hostplants (all Fabaceae) are listed. These are the first life histories and food plants described for the Hapigiini.
