The third instar larva, pupa, and eggs of Yingaresca holosericea (Bowditch) are described and illustrated. Biological notes providing life history data including feeding habits on its host Cordia monsperma (Jacq.) R. & S. (Boraginaceae), adult egg-laying capacity, larval behavior and some adult behaviors, as well as data on parasitism are presented. Similarities between this species and Ophraella conferta (LeConte), Walterianella bucki Bechyné and Alagoasa Bechyné species are discussed.

The eggs, 1st and 3rd instar larvae of Walterianella bucki Bechyné are described and illustrated. The life history of W. bucki is discussed and artificial rearing methods are presented; W. bucki feeds on Buddleja sp. (Buddlejaceae) and is nocturnal. First instar larvae differ in morphology from 3rd instar larvae, the latter showing significant additions. Differences between these and other known Oedionychina larvae are discussed. This is the first report of interstitial larvae for the oedionychine flea beetles. The importance of sequestration to W. bucki of the iridoid glycoside, acubin, is discussed.

The five new species, Meibomeus dirli, M. jacki, M. juarez, M. kirki, and M. rodneyi, are described. The taxonomic relationships between the new species of Meibomeus Bridwell and named species are discussed. Valuable new taxonomic characters used are basal or apical metasternal spines in some species. Host plants are reported for the five new species and for the named species Meibomeus apicicornis (Pic), M. howdeni Kingsolver and Whitehead, M. mitchelli Kingsolver and Whitehead, M. panamensis Kingsolver and Whitehead, M. ptinoides (Sharp), and M. surrubresus (Pic). The hosts of all known species of Meibomeus are compiled. All hosts are in the Fabaceae, subfamily Papilionoideae. About 60% of the hosts are in the genus Desmodium Desv. Species in the genera Desmodium, Aeschynomene L., Lespedeza Michx., Indigofera L., and Coursetia DC. are reported to have their seeds fed upon by species of Meibomeus.

A summary of Massachusetts's records of Cerambycidae reported in the literature is presented, including our own records of 132 species from years 1999 to 2001. Altogether it represents a total of 198 species, from which 27 species collected during our study are noted from Massachusetts for the first time. Host plants for 106 species are presented, including 60 new host plant records. Host plant and biology of Hesperophanes pubescens (Haldeman) is discussed for the first time.

Two dung beetle species were studied over the course of 14 months in grasslands located on the eastern side of the Pico de Orizaba volcano in the state of Veracruz, Mexico, at an altitude of 2,700 m. Field samples were analyzed monthly to determine population abundances and sexual maturity stages. The most abundant species was Aphodius (Trichaphodius) opisthius Bates, which was active from June to December 1998, and from May to July 1999. In 1998, this species showed two population peaks, the highest in June, the other in November. Between June and August, individuals were found in maturing and mature sexual stages. In contrast, between September and December, the individuals found were recently emerged and immatures. No Aphodius opisthius individuals were found between January and April 1999, the period of the year that is cold and dry. Possibly the immature adults of both sexes entered into diapause. In 1999, the species showed a population peak again in the humid month of June. From May to July, individuals observed were found in maturing and mature stages. Cephalocyclus hogei Bates was less abundantly found, being active only in June of 1998 and in June and July of 1999, and presenting just one abundance peak each year. All females observed were mature. Maturing males were found in July of 1998, mature males in June of 1999, and immature, maturing, and mature males in July of 1999. From August 1998 through May of the following year, no individuals of this species were encountered, they may have entered diapause during these 10 months. Both species are univoltine, and the emergences of the new generations in these species do not overlap.

A new species of water beetle, Gymnochthebius ischigualasto, is described from Ischigualasto Park, San Juan Province, Argentina. The new species is compared to related members of the genus, and the aedeagus of the holotype is illustrated. The aedeagus of the holotype of G. reticulatus (Orchymont), a related species, is also illustrated.

Checkered beetles are infrequently encountered in large numbers, perhaps a manifestation of their biologic ties with floral periodicity, prey population density, or climatic factors. What is published about Cleridae biology deals mostly with adult emergence from woody plants and predatory activity of immatures on lignicolous insects. Very little is known about plant foraging behavior of these beetles. They are known to visit flowers to aggregate for mating, secure pollen, or to feed on entomophagous insects. Field and laboratory observations that involve the speciose Australian genus Eleale indicate that E. aspera (Newman) visits flowers to mate, to fortuitously gather pollen for food, and to utilize the flower of Pyracantha crenulata (Roxb. Roemer) as a “watering hole.” Eleale aspera beetles and relatives immerse their forebodies deeply into the corolla of the flower to reach nectaries which provide essential moisture when water is at a premium during the Australian dry season.

Microeubria acuta Lee and Yang, new species, collected from Borneo, is described. Larvae of Microeubria sp. from Laos are also described, which are characterized by the slender abdominal pleurites and reduction of the spiracle on the abdominal segment 8 and the spiracular brush on the abdominal segment 9. One additional specimen of M. jaechi Lee and Yang from Borneo was found.

Adults and larvae of Nicagus obscurus (LeConte) were collected from under drift wood along the shore line of Lake Superior in Wisconsin. Larvae were reared in the lab to confirm their identity. The mature larva is described and illustrated. Notes on the placement of Nicagus in Lucanidae and habitat information are included.

Colaspis bridarollii (Bechyné), is one of the main pests of potatoes in Buenos Aires province, Argentina. The adult longevity, reproductive biology, and pupation period of C. bridarollii were studied in the laboratory; seasonal phenology and larval feeding damage were examined in potatoes in the field from 1991 to 1993. Laboratory studies showed that there was no significant difference between female and male mean longevity (38.63 and 39.78 d, respectively). Total mean fecundity was 402.73 eggs per female, and the mean number of eggs per d per female was 27.76. Mean number of egg clutches per female was 5.68 with a mean number of 71 eggs per clutch. Mean incubation period was 7.80 d and 74.50% of eggs hatched. Field sampling results showed that C. bridarollii and potato crop phenologies are well synchronized. Adults were present in the potato fields from the end of December to mid March, and the second and third instars reached peak densities in March and April, coincident with the major feeding damage to tubers.

Trichodes audouini-dubreuili, poorly described by Reymond (1956), from Morocco is redescribed and figured from one male specimen recently discovered in the Moroccan Anti-Atlas.

Dung beetles of the genus Onthophagus Latreille are used as model systems in behavioral ecology, evolutionary biology, and insect development. In the past, studies on the developmental control of larval and adult form, and studies that seek to integrate development, evolution, and ecology, have been handicapped by experimenters' inability to determine the sex of developing larvae. Here we present a straightforward, reliable, and non-invasive method that permits sexing of Onthophagus Latreille larvae during their early to mid third instar.

Asidopsis olsoni new species from Arizona, U.S.A. and A. humeralis new species from Chihuahua, Mexico (Pimeliinae: Asidini) are described. The distinctive characters of these new species in relation to others of the genus are discussed. Habitus photographs and illustrations of antennae and male genitalia are included.

A new genus and species of Endomychidae from northeastern North America, Hadromychus chandleri, is described and illustrated. The genus is likely the adelphotaxon (sister-group) to Danascelis Tomaszewska from Pakistan, based on the following character states: antennal insertions hidden, swollen antennomere 9 of male, paired foveae on each side of the pronotal base, pronotum lacking a thick basal bead and sublateral sulci, unicarinate mesosternum, absence of metasternal discrimen, absence of sutural stria on elytron, and slightly lobed tarsomeres. Pending a cladistic analysis of the Endomychidae, both genera are best placed at present in Epipocinae, though it is possible they may be sister taxa to the subfamily Leiestinae based on the sharing of antennal insertions hidden in dorsal view, reduced prosternal process, weakly produced anterior pronotal angles, and slightly lobed tarsomeres. Sexual dimorphism in Endomychidae is discussed briefly.

The exotic creeper Macfadyena unguis-cati (L.) Gentry (Bignoniaceae) which was introduced into South Africa as an ornamental, is now in the early stages of invasion. Natural forests are particularly at risk and woodlands, plantations, orchards and disturbed areas are also invaded. The weed forms thick carpets that smother forest floors and canopies, killing canopy trees and understorey plants. Mechanical and chemical control methods are impractical and the weed was thus targeted for biological control. In 1996, a leaf-feeding tortoise beetle, Charidotis auroguttata (Boheman 1855), was introduced from Venezuela. Following routine screening in quarantine, permission for the release of C. auroguttata was granted in autumn 1999.

Aegialia (Silluvia) kabaki Frolov, new species, from China (Sichuan Province) is described. It can be separated from other described species of the subgenus Silluvia by the serrate margins of the pronotum and the presence of the long setae on the margins and apices of the elytra.

The larvae and pupae of the Neotropical precinctive species, Macracanthus brevicillus (Chevrolat 1863), are described. Nasalar form of the Macracanthus Chaudoir larvae suggest closer relationship of this genus to Masoreus Dejean than to Anaulacus MacLeay, both latter masoreine genera being precinctive in the Old World.