Two new species of Cryptocephalus Geoffroy, 1762 are described from the Baja California peninsula, Mexico: C. drewi sp. nov., and C. incognitus sp. nov., with illustrations of the male genitalia presented for the former. Specimens previously reported as C. sanguinicollis nigerrimus Crotch, 1874 from the Baja California peninsula were determined to represent C. drewi, while specimens previously reported as C. vapidus White, 1968 were identified as C. californicus Clavareau, 1913. As a result, C. sanguinicollis nigerrimus and C. vapidus are removed from the list of chrysomelid species believed to occur in the Baja California peninsula. A non-type male specimen of C. californicus is described, and differences between the male and female are provided. Color habitus photographs and information on distribution are provided for all three species.

This paper summarizes the distribution of the four species of the caddisfly genus Arctopsyche McLachlan, 1868 in North America and describes natural and man-induced factors that could account for that distribution. It proposes some possible future scenarios of speciation, local extirpation, or extinction.

The genus Pseudaspidimerus Kapur, 1948 is recorded from Laos for the first time, it includes three species. Two new species are described: P. toulakhomi sp. nov. and P. cornutus sp. nov.; P. rectangulatus (Kuznetsov & Pang, 1991) and P. serratus (Kuznetsov & Pang, 1991) are new synonyms of P. mauliki Kapur (syn. nov.). All species are described, illustrated and keyed.

In its broadest sense, The Palouse or Palouse prairie is an ecoregion consisting primarily of native grasses, shrubs, and forbs that originally covered over 16,000 km² of central Idaho, southeastern Washington, and northeastern Oregon. It is estimated that only 1–6% of this habitat remains with much of it having been converted to agriculture. The Kramer Palouse Natural Area is a relatively undisturbed, 11.7-ha remnant of Palouse prairie situated in Whitman County, Washington. During 2004–05 we conducted a light-trapping and hand-netting survey of a set of families of moths, collectively referred to as macromoths, on the Kramer site. The purpose of this study was to document the biological diversity of moths occurring on the site. This paper reports on just over 5,100 specimens and 150 species in 7 families: Cossidae (usually considered a micromoth — one species), Thyatiridae (one species) Lasiocampidae (one species), Notodontidae (three species), Sphingidae (five species), Erebidae (14 species), and Noctuidae (125 species). We collected no Nolidae or Euteliidae and, although Geometridae are considered macromoths, they are not discussed in this paper. Seasonal and subjective abundance information is presented for all species. Although no species of strict conservation concern were collected, our study indicates that remaining areas of Palouse prairie are able to support a significant species diversity of macromoths, which are otherwise uncommon in surrounding areas, and probably represent an ancestral fauna.

Tropical fire ant (TFA), Solenopsis geminata (Fabricius, 1804), is considered as one of the most serious threats to the terrestrial fauna of Galápagos, yet little is known about its distribution and impact in the archipelago. We reviewed literature, studied museum specimens and sampled over 62 sites on ten islands and islets in order to update the distribution of TFA. Since the 1980's, species occurrences for TFA have increased from three to 115 localities, and the species is now recorded on seven islands and 11 islets. Sixty-six new records were registered since the last review in 2008, including the islets Bayas, Champion, Cuevas, and Eden. TFA seems to be present in a wide range of habitats with a clear predominance in human-disturbed zones. Our data, compiled with previous studies, suggest that TFA can behaviorally dominate other ants. TFA was collected on 28 nesting sites of endangered and/or endemic vertebrate species, where it constitutes a potential or proven threat. This study identifies potential invasion sites as well as endemic species that may further be impacted by this highly invasive ant. It also recommends regular monitoring to prevent further invasion.