Review of the diet of Icterus pustulatus (Passeriformes: Icteridae) and a new prey, Oiketicus sp. (Lepidoptera: Psychidae) from Mexico

We report a case of predation on the basket worm Oiketicus sp. (Lepidoptera, Psychidae) by the Streak-backed Oriole (Icterus pustulatus) in the Municipality of Santa Cruz Xoxocotlán, Oaxaca, Mexico. The bird was photographed, and we describe the prey based on its basket, cephalic capsule, and fragments of thoracic segments. We describe the foraging strategy and provide a list of previously recorded food resources in the diet of I. pustulatus. This is the first documentation of a basket worm being consumed by I. pustulatus, which may be considered omnivorous.

Reportamos un caso de depredación sobre el gusano canasta Oiketicus sp. (Lepidoptera, Psychidae) por la calandria dorso rayado (Icterus pustulatus) en el Municipio de Santa Cruz Xoxocotlán, Oaxaca, México. El ave fue fotografiada y describimos la presa a partir de su canasta, cápsula cefálica y fragmentos de segmentos torácicos. Describimos la estrategia de forrajeo y presentamos una lista de recursos alimentarios previamente registrados en la dieta de I. pustulatus. Esta es la primera documentación de alimentación de un gusano canasta por parte de I. pustulatus, el cual puede ser considerada omnivora.

Nest architecture of a bagworm species: Rhythmic pattern in the arrangement of sticks.

Nest architecture of a bagworm species, Clania crameri was examined. Fortytwo bags (nests) were collected from the host plant, Clerodendron indicum and number of sticks used in each bag was counted. Furthermore, length of each stick in each nest was measured (in mm) clockwise one after another serially beginning with the longest stick. The data obtained were subjected to frequency analysis and power spectrum analysis. Results clearly reveal that the larvae of bagworms do not glue together sticks of different size randomly but with a definite pattern.