Recent collecting has revealed a number of synonymies and new distributional records for Caribbean and Antillean Cerambycidae. New synonymies established: Lamproclytus oakleyi Fisher = Lamproclytus elegans Fisher; Tilloclytus puertoricensis Fisher = Tilloclytus minutus Fisher; Leptostylopsis albosignatus (Fisher) = Leptostylopsis antillarum (Fisher); Styloleptus puertoricensis (Fisher) = Antilleptostylus nigricans (Fisher); Eugamandus brunneus Fisher = Eugamandus oakleyi Fisher; Lethes israeli Zayas = Styloleptus biustus biustus (LeConte). Desmiphora hirticollis (Olivier), and Amniscus similis (Gahan) are recorded from Puerto Rico for the first time.

The genus Acalymma Barber comprises 72 species widely distributed in America, mainly in the neotropical region. The taxonomy of this genus is in a confused state because of the superficial similarity of all species, which posses similar color patterns and elytral punctation. The significance of mouthpart characters for assessing phylogenetic relationships among subfamilies of Chrysomelidae, and especially the Alticinae and Galerucinae, has been noted by various authors. The present paper is a comparative morphological study of mouthparts based on 14 species of Acalymma. As a result of this study, the taxonomic value of the mouthparts for recognizing species is established.

The first description for the larval stage of Eurysphindus LeConte is provided based on the North American species Eurysphindus hirtus LeConte and Eurysphindus comatulus McHugh. Diagnoses are given to distinguish the larvae of these species. New host data for the genus suggest greater specificity for breeding than for adult feeding. Eurysphindus species may prefer to breed in some foliicolous myxomycetes. Eurysphindus hirtus larvae use modified setae to hold slime mold sporangia over the dorsum in an apparent cloaking behavior.

Anatheta Casey 1910 (type species Sableta (Anatheta) planulicollis Casey 1910) is confirmed to be a valid genus separate from Sableta Casey 1910 (type species Sableta (s. str.) infulata Casey 1910). Two valid species are recognized in Anatheta: A. planulicollis (Casey 1910) (transferred from Sableta), and A. surrufa (Casey 1911) (transferred from Metaxya Mulsant et Rey 1873). Metaxya erudita Casey 1911 is recognized as a junior synonym of Anatheta planulicollis (Casey 1910). Sableta (Anatheta) curata Casey 1910 is not a member of Anatheta and is close to Acrotona Thomson 1859. Canastota Casey 1910 (type species Sableta (Canastota) canadensis Casey 1910), believed by Seevers (1978) to be very similar to Anatheta, is placed in synonymy with Silusida Casey 1906; Sableta (Canastota) canadensis Casey 1910 is placed in synonymy with Silusida marginella (Casey 1906). Lectotypes are designated for Metaxya erudita Casey 1911, Metaxya surrufa Casey 1911, Bolitochara marginella Casey 1893 and Sableta canadensis Casey 1910. Redescriptions and illustrations of distinctive structural features are provided for distinguishing Anatheta from other aleocharine genera and for recognizing the two valid species in the genus.

The monotypic new genus Barriella is described on the basis of B. longicornoides Opitz, new species, from Brazil. I postulate that Barriella represents a descendant of a Gondwanian stock that also yielded such Old World genera as Stigmatium Grey and Clerus Fabricius. The potential relationships of B. longicornoides Opitz to Chilean genera such as Natalis Laporte, Notocymatodera Schenkling, Eurymetomorphon Pic, and Ctenoclerus Solervicens, and to the New World genera Placopterus Wolcott and Enoclerus Gahan, is also discussed. A synonymy involving Notocymatodera modesta (Spinola) and Notocymatodera dimidiata (Germar) is suggested.

The species composition and abundance of coprophilous predatory Staphylinidae in two sites of temperate and subtropical Argentina are presented and discussed in terms of their hypothetical effect on the dung breeding fly community. Specimens of Staphylinidae were collected from cow manure by flotation. Dung breeding fly puparia were also collected to obtain parasitoidal Staphylinidae. Roughly the same number of species, and the same species of common staphylinids were found in both sites. Also, the dominant species were almost the same: Philonthus pauxillus Solsky, P. flavolimbatus Erichson, and Aleochara verberans Erichson. However, Philonthus sp. 1, and Aleochara notula Erichson were very abundant in Buenos Aires, but rare in Tucumán, and Philonthus nv. sp., was common in Tucumán but not found in Buenos Aires. Of the parasitoid species in the genus Aleochara Gravenhorst, A. notula was recovered from Oxysarcodexia varia (Walker), Sarcophagula occidua (F.), and Palaeosepsis discolor (Bigot) (Sepsidae). A. verberans from O. varia, Oxysarcophaga aurifinis (Walker), and Ravinia sueta (Wulp). A. puberula from O. varia, and A. bimaculata from O. aurifinis. All the hosts, except P. discolor, were in the family Sarcophagidae. Specimens of Philonthus Stephens were the most abundant predatory rove beetles, and field and laboratory data suggest they are the group of predators that most affect the community of dung breeding flies. The necessity for the release of exotic predatory Staphylinidae in Argentina is discussed.

Scarab beetles of four species, Onthophagus penicillatus Harold, O. rudis Sharp, Phaeochridius derasus (Harold) and Phaeochroops gilleti (Benderitter) (Scarabaeoidea: Scarabaeidae and Hybosoridae) were attracted by quinonous defensive secretions of Harpagophoridae (Diplopoda) in Sabah, Borneo. Unlike the Afrotropics, where some specialists feed on fresh millipede carcasses, in Borneo only generalist necrophages use this resource. This may be caused by the low abundance of juliform Diplopoda in Borneo prohibiting specialization on this resource.

Distributional and/or biological data are presented for 92 species and 1 subspecies of Buprestidae from Canada, the Dominican Republic, Honduras, Mexico, Panama, and the United States in the following genera and subgenera: Acmaeodera Eschscholtz, Acmaeoderopsis Barr, Actenodes Dejean, Agrilaxia Kerremans, Agrilus (s. str.) Curtis, Agrilus (Engyaulus) Waterhouse, Anthaxia (Haplanthaxia) Reitter, Aphanisticus Latreille, Brachys Dejean, Buprestis (s. str.) Linneaus, Buprestis (Knulliobuprestis) Kurosawa, Chrysobothris Eschscholtz, Chrysophana LeConte, Dicerca (s. str.) Eschscholtz, Dicerca (Argante) Gistel, Hippomelas Laporte and Gory, Mastogenius Solier, Pachyschelus Solier, Phaenops Megerle, Polycesta (Jamaiquesia) Cobos, Polycesta (Tularensia) Nelson, Sphaerobothris (s. str.) Semenov-Tian-Shanskij and Rikhter, Taphrocerus Solier, and Xenorhipis LeConte. Acmaeodera cazieri Knull is validated.

Cassidine chrysomelid species are listed for the Caribbean islands of Trinidad and Tobago, based on personal field collections, examination of museum collections and literature records. Localities and some host plant data are provided. Trinidad has 38 species in 19 genera from five tribes, with 15 new species records. Three species are endemic. Tobago has eight species in five genera from two tribes, including four new generic and species records. All species known from Tobago also occur on Trinidad. The first host plant data are given for Omocerus (Omocerus) taurus (Fabricius).

New host or distribution records are presented for 14 species of tortoise beetles from South Africa and Zimbabwe: Aspidimorpha haefligeri Spaeth, A. tecta Boheman, Cassida ancorifera Boheman, C. circumflexa Spaeth, C. dorsovittata Boheman, C. innotata Boheman, C. lacrymosa Boheman, C. lueboensis Spaeth, Chiridopsis nigrosepta Fairmaire, Laccoptera cicatricosa (Boheman), Notosacantha badia (Boheman), N. junodi (Spaeth), N. nervosa (Spaeth), and N. vogeli (Weise). Cassida circumflexa Spaeth, collected in Zimbabwe, was previously only known from the type locality along the coast of Mozambique.

A scanning electron micrograph study was conducted of adult Lissorhoptrus oryzophilus Kuschel to determine the types and locations of sensory structures on the antennae. The antenna consists of a scape, six-segmented funicle, and club. Females had significantly longer antennal segments than males, but no other sexually dimorphic characteristics were found. Trichoid sensilla, two types of squamaform sensilla, tuft hairs, and hydrofuge scales were found on the antennae. The distal third of the club was densely covered by trichoid sensilla that likely function in gustation and olfaction. Hydrofuge scales were on the antennal club, and plumose hydrofuge scales were on the rostrum. Squamiform sensilla were among the plumose hydrofuge scales on the rostrum. The information gained from this study may be used to design electrophysiological studies to provide information about the attractiveness of volatile compounds from rice plants and potential weevil pheromones. Aspects of the plastron of the weevil are also discussed. The antennae of rice water weevils have sensilla and hydrofuge adaptions for an aquatic environment and were found to be unique when compared to five species of terrestrial weevils.

Eulechriops elongatus Champion, previously described from Morelos, México, is reported from Arizona for the first time. The species is redescribed and distinguished from the eastern North American species E. minutus (LeConte), genitalia are figured, and new distribution data are given for both species. Members of the minutus group appear to be associated with oaks and additional undescribed species are known from México. One or two specimens each of at least two and possibly three apparently undescribed Eulechriops species are known from Arizona and Texas.

A new apionid weevil, Coelocephalapion hyptidis, new species, from Venezuela is described and illustrated. The new species belongs to the C. decoloratum species group. It is under laboratory culture as a potential biocontrol agent for Hyptis suaveolens (L.) Poit. (Lamiaceae) in Australia.