Hypochrysops piceatus Kerr, Macqueen & D.P.A. Sands, 1969 is currently known from a restricted area in southeastern Queensland, Australia and is listed as Endangered under the Queensland Nature Conservation Act 1992. Although it is well-known that the larvae are monophagous, feeding exclusively on the foliage of mature (old growth) trees of Allocasuarina luehmannii (RT Baker) LAS Johnson (Casuarinaceae) and obligatorily attended by the ant Anonychomyrma inclinata Lewis & D.P.A. Sands, 2021 (Formicidae: Dolichoderinae), the life history has not previously been described and aspects of the species' ecology remain poorly documented. Here we describe the immature stages and clarify the biology of the species. We also report the utilization of saplings of the larval food plant for the first time, a discovery which has important ramifications for conservation management of the butterfly. The attendant ant of the closely related Hypochrysops cyane (Waterhouse & Lyell, 1914) is clarified and found not to be conspecific with that of H. piceatus.

A survey of the Phycitinae (Pyralidae) of the Sierra Tarahumara region in northwestern Mexico recorded 35 species, including 32 previously described species and three new species in the genera Cuniberta Heinrich, Sciota Hulst, and Caristanius Heinrich. The new species are described, and images of the genitalia and antenna of one species are provided. An annotated list and images of the Phycitinae collected during this study, and a list of species previously described from Mexico, are also provided. In our study, we found five species that are endemic to Mexico, and 10 that are new, previously unpublished records for Mexico. Seven species are northernmost records, and nine are southernmost records. Of the latter, all are new records for Mexico. All species except one are new, previously unpublished, records for Sonora and Chihuahua. A table of the species collected by locality and their general vegetation is provided with a brief discussion about the species richness between localities in comparison to their habitat or vegetation.

Un estudio de Phycitinae (Pyralidae) de la region de la Sierra Tarahumara en noroeste de México registró 35 especies, incluidas 32 especies descrita previamente y tres especies nuevas en los géneros Cuniberta Heinrich, Sciota Hulst, y Caristanius Heinrich. Se describen las nuevas especies y se proporcionan imágenes de los genitales y antena de una especie. También se proporciona una lista comentada e imágenes de Phycitinae recolectadas durante este estudio, y una lista de especies descritas previamente en México. En nuestro estudio, encontramos cinco especies que son endémicas de México y 10 que son registros nuevos e inéditos de México. Siete especies son registros más al norte y nueve son registros más al sur. De estos últimos, todos son nuevos registros para México. Todas las especies excepto una son registros nuevos, no publicados previamente, para Sonora y Chihuahua. Se proporciona una tabla de las especies recolectadas por localidad y su vegetación general con una breve discusión sobre la riqueza de especies entre localidades en su comparación con su habitat o vegetación.

Dryocampa kendalli n. sp.—a diminutive North American saturniid—is described from buckeye-rich bottomlands of the Hill Country of Texas. Adults have subdued yellow and pink maculation and often a dusky aspect that distinguishes them from their eastern sister species D. rubicunda. While the new species COI barcode differs from that of D. rubicunda by only 1.3%, the adult, larva, and hostplant association differ from those of D. rubicunda. The adult, eggs, larva, and genitalia of the new species are illustrated and its life history briefly characterized.

The contest between conspecific males for mating opportunities is common among different species. Many species of butterfly defend a territory for the purpose of mating. In our study, the mating and courtship behaviour of the Indian common crow butterfly Euploea core core (Lepidoptera: Nymphalidae) was observed, which is a widely distributed native and important pollinator. Indian common crow butterfly defends a sunspot as territory for mating. When other butterflies come near or into the territory, a non-contact aerial interaction occurs between them. The owner of the territory excludes the intruders by chasing them out. Males of this butterfly species prefer a territory characterized by sunlight at the edge of woodland or open tracks in the forest containing host plants and oviposition sites near it. Indian common crow butterfly exhibits territorial activity throughout the day but is more frequent in the afternoon. The frequency of chasing for a longer duration is very low. The duration of chasing for the conspecific male is higher than that of heterospecific males. This is the first documentation about the territorial and courtship behaviour of Indian common crow butterflies. A new distribution record for the species has been reported as well. Such studies are essential not only to understand their behavioural patterns but also to understand their needs while planning conservation efforts.

A new geometrid species, Eupithecia coconinoensis n. sp. is described from Arizona, USA.

This paper presents new moth records from Washington State, most of which were collected as bycatch in exotic pest surveys conducted in 2019. Also included are further locality information and older collection dates for two species only recently documented in the state.