Abstract
AsturodesAmsel, 1956, a Neotropical genus of distinctive pyraloid moths (Lepidoptera: Crambidae) with dark brown lines and silver scales on a yellow ground color on the wings and abdomen, is revised. As defined herein, the genus includes four species: A. fimbriauralis Guenee, the type species, A. bioalfae Solis, new species, A. encisoensis Solis, new species, and A. junkoshimurae Solis, new species. During this study, a petaloid scale formed by a group of coalesced setae in the abdominal androconial organs of the male genitalia was discovered and illustrated for the first time. Androconial organs in the Pyraloidea are briefly discussed. The type species and two new species, A. junkoshimurae, new species and A. bioalfae, new species, were reared from larvae feeding on the leaves of Rhamnaceae in the Area de Conservacion Guanacaste (ACG) in northwestern Costa Rica representing 913 rearing events. This contribution is part of a long-term inventory of ACG caterpillars, their food plants, and their parasitoids, that includes COI DNA barcoding of specimens for discovery and identification.
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