An overview is presented of the progress made on taxonomy, classification and phylogeny weevils in 250 years since first taxonomic descriptions by Carolus Linnaeus. The number described species calculated to be about 62 000 likely total existing 220 000, indicating that we have just over a quarter diversity this important group beetles that, at current rates discovery description, it will take another 650 or so describe rest. Within framework concept weevil phylogeny, brief account given...

We describe the Mesoamerican leaf litter weevil genus Plumolepilius Barrios-Izás & Anderson, new (Coleoptera: Curculionidae: Molytinae: Conotrachelini) (type species P. trifiniensis species), of which inhabit mountain ecosystems from state Chiapas in southeastern Mexico to northern Panama. In this paper we nine Mexico, Guatemala, and El Salvador: (El Salvador Guatemala); branstetteri (Guatemala Mexico); longinoi cortezi canoi (Guatemala); schusteri daryi yolnabajensis macalajauensis...

The genus Sicoderus Vanin is revised for the West Indies. A total of 32 species are known with 18 new described herein as follows: aeneus (Haiti), S. alternatus (Dominican Republic), bautistai Republic, Haiti), beatyi (Cuba), bipunctiventris caladeler detonnancouri franzi (Puerto Rico), guanyangi humeralis lucidus (Dominica), medranae perezi pseudostriatolateralis striatolateralis thomasi turnbowi and woodruffi (Grenada). All or redescribed, natural history information summarized a listing...

Resource partitioning in the silphid fauna of southern Ontario is examined detail, using baited pitfall traps placed four different habitats. During 1979 and 1980, a total 9549 specimens Silphidae were collected, representing 12 species, which 5 subfamily Silphinae 7 Nicrophorinae. The roles seasonal patterns, habitat specificity, food type size resource are discussed for all species. At subfamilial level, accomplished through selection sizes carcasses, while at specific patterns specificity...

Sacred trees and haunted forests - Indonesia sociopolitical structures the Southeast Asian ecosystems nature as virgin forest Sri Lankan farmers' perspective conservation in Northern Pakistan Japanese advertising ecology, women, fashion, art culture Feng-shui Chinese perception of nature.

The deoxyribonucleic acid (DNA) base composition and DNA homologies of more than 40 strains oxidase-negative Moraxella species were determined. These bacteria have also been identified as belonging to the Mima-Herellea-Acinetobacter group Bacterium anitratum group, well several other genera including Achromobacter Alcaligenes . content these ranged from 46% guanine plus cytosine. DNA–DNA competition experiments distinguished five groups whose members determined by showing 50% or homology one...

Two new species of South American Metamasius Horn (Coleoptera: Curculionidae: Dryophthorinae) are described: onorei from Cotopaxi, Ecuador and pilirostris west Río Yurumangui, Colombia. Diagnostic characters images provided for both to facilitate identification.

Abstract A great proportion of biodiversity is accounted for by organisms, particularly insects, intimately associated with plants. Knowing whether ecological or phylogenetic factors chiefly influence the evolution host plant associations essential to understanding speciation in, and therefore influencing diversity of, phytophagous insects. Through examination known in Curculioninae comparison available reconstructed relationships certain taxa Curculioninae, little, if any, evidence...

Molgula manhattensis was shown to respond glass fragments and tunicate grafts implanted within the wall of branchial sac with a number cellular mechanisms.Glass inserted into tissue were encapsulated by hemocytes. Vanadocytes, or cells derived from vanadocytes, blood most active in encapsulation mechanisms. Portions capsules composed of: (1.) multilayered structures made up (2.) monolayers vanadocyte aggregates, (3.) strands tunicin produced vanadocytes.Injected carmine trypan blue ingested...

Eurhamphus pancinii n. sp. is described based on a series of specimens collected in West Papua, the Arfak Mountains and Yapen Island. The only other species genus fasciculatus Shuckard known from New South Wales northwards into Queensland Australia. new distinguished E. by pronotum elytra with glabrous raised areas between rows scales very narrow, sutural interstria 3 low evenly rounded throughout length, profile not humped towards base (both sexes), males shorter, less strongly dorsally...

Perkinsus marinus is a protozoan parasite responsible for major infectious disease of the Eastern oyster, Crassostrea virginica. Nonspecific immunity was assayed in oysters with known intensities infection so that physiological responses host elicited by could be better understood. This report describes capacity hemocytes to generate reactive oxygen intermediates during progression disease. The constitute internal defense effector system oysters, and cytotoxic species are thought play...

The goal of this study was to determine how enteric viruses persist within shellfish tissues. Several lines novel evidence show that phagocytic blood cells (hemocytes) Eastern oysters (Crassostrea virginica) play an important role in the retention virus particles. Our results demonstrated association contamination with hemocytes but not hemolymph. Live contaminated overnight hepatitis A (HAV) and murine norovirus (MNV) had 56% 80% extractable associated hemocytes, respectively. Transfer...