Three new species of longhorned beetles (Coleoptera: Cerambycidae) with notes on additional taxa.

The differences between Methia enigma Martins, 1981 and M. argentina Bruch, 1918 (Cerambycinae: Methiini) are discussed, and a new country record for the latter is provided. Sexual dimorphism in Pseudosparna Mermudes and Monné, 2009 (Lamiinae: Acanthocinini) is reported for the first time, and two new species of Pseudosparna (Lamiinae: Acanthocinini) are described from Panama: Pseudosparna dimitrisi sp.

Descriptions and new records in longhorned beetles (Coleoptera: Cerambycidae) from Central America.

Two new species of longhorned beetles (Coleoptera: Cerambycidae) from Central America are described and illustrated: Crossomeles copei sp. nov. and Crossomeles oscarcastilloi sp.

Revision of the American species of the genus Prionus Geoffroy, 1762 (Coleoptera, Cerambycidae, Prioninae, Prionini).

A revision of the American species of Prionus Geoffroy, 1762 is presented. Prionus (Neopolyarthron) Semenov, 1899 and Prionus (Antennalia) Casey, 1912 are synonymized with Prionus Geoffroy, 1762. Homaesthesis LeConte, 1873 is considered a true subgenus of Prionus.

The Influence of Host Plant Volatiles on the Attraction of Longhorn Beetles to Pheromones.

Host plant volatiles have been shown to strongly synergize the attraction of some longhorn beetle species (Coleoptera: Cerambycidae) to their pheromones. This synergism is well documented among species that infest conifers, but less so for angiosperm-infesting species. To explore the extent of this phenomenon in the Cerambycidae, we first tested the responses of a cerambycid community to a generic pheromone blend in the presence or absence of chipped material from host plants as a source of host volatiles.

(R)-desmolactone, a female-produced sex pheromone component of the cerambycid beetle Desmocerus californicus californicus (subfamily Lepturinae).

We report the identification, synthesis, and field bioassays of a female-produced sex attractant pheromone for the cerambycid beetle Desmocerus californicus californicus Horn. Headspace volatiles from females contained a sex-specific compound, (R)-desmolactone [(4R,9Z)-hexadec-9-en-4-olide], which elicited strong responses from the antennae of adult males in coupled gas chromatography-electroantennogram analyses. Short syntheses of both enantiomers were developed from commercial chiral synthons.

Male-produced aggregation pheromone of the cerambycid beetle Rosalia funebris.

We report the identification, synthesis, and field bioassays of a volatile, male-produced aggregation pheromone of a long-horned beetle, the banded alder borer, Rosalia funebris Mots. Headspace collections from males contained a major male-specific compound, (Z)-3-decenyl (E)-2-hexenoate, and several minor components, identified as (Z)-3-decenol, (Z)-3-nonenyl (E)-2-hexenoate, and (Z)-3-decenyl (E)-3-hexenoate. The antennae of both males and females responded strongly to (Z)-3-decenyl (E)-2-hexenoate.