Seven species of helminths and six species of arthropods are reported from 23 of 40 brown pelicans, Pelecanus occidentalis, collected from various localities in Puerto Rico. Helminth parasites include three nematodes (Contracaecum multipapillatum, Contracaecum mexicanum, and Eustrongylides sp.), three trematodes (Galactosomum darbyi, Mesostephanus appendiculatoides, and Ribeiroia ondatrae), and...

Adult female Culicoides occidentalis Wirth and Jones were collected in a coastal salt marsh habitat in southern California over a period of 15 mo using CO2-baited suction traps. Adults were active year-round. Adult females overall were large based on wing length (1.86 mm). Because of coastal influences, daily and seasonal changes in air temperatures were greatly buffered, and mean temperatures ...

Megophthalmidia Dziedzicki is a small leiine genus (Mycetophilidae) with seven species described from the Neotropics and ten species from the Palearctic region. Two species of Megophthalmidia have been reported for North America. Recent collecting of Mycetophilidae in California and Arizona, however, shows current North American diversity of Megophthalmidia is at least on par to other regions o...

A first complete list of the reptile type specimens preserved in the Museo Nacional de Ciencias Naturales (CSIC) of Madrid (updated until 15 July 2012) is provided. The collection houses a total of 319 type specimens representing 24 taxa belonging to 6 families and 12 genera. There are 22 taxa represented by primary types (19 holotypes, 2 neotypes and 1lectotype) and at least one paratype, and ...

The first and second internal transcribed spacer regions (ITS1 and ITS2) of the ribosomal DNA of Biomphalaria tenagophila complex (B. tenagophila, B. occidentalis, and B. t. guaibensis) were sequenced and compared. The alignment lengths of these regions were about 655 bp and 481 bp, respectively. Phylogenetic relationships among the Biomphalaria species were inferred by Maximum Parsimony and Ne...

Mediterranean stone pine nut is appreciated for its high economic and nutritional value. Starting in 2012, Pinus pinea production declined throughout the area. The dry cone syndrome associated with this decline introduction of Leptoglossus occidentalis occurred simultaneously. This study aims to evaluate potential reasons behind Lebanon, considering climatic factors invasion L. occidentalis. Co...

The objective of this study is to investigate the occurrence poor fruit set in Telfairia occidentalis , despite prolific production flowers plant. Consequently, floral morphology male and female plants with respect to: pollen viability, size count distribution for aneuploids polyploids were examined. Floral buds from different ( occidentalis) collected viability was assessed using aceto-carmine...

Cold narcosis is commonly used for immobilizing bees and has been found to have no effect on mortality and fecundity in honeybees. We present the first study examining the effect of cold narcosis on recruitment and foraging in bumblebees. In a controlled laboratory setting, we observed that the number of foraging Bombus occidentalis, a New World bumblebee, increased after the focal forager retu...

Essential oils have insecticidal activity against several insects and are composed of numerous compounds. This study investigated the effects Thuja occidentalis L. (Cupressaceae) essential oil, terpinyl acetate, bornyl acetate peach aphid [Myzus persicae (Sulzer)]. The effect on three Cupressaceae plants was highest in T. occidentalis. oil extracted by steam distillation, optimum conditions wer...

The Psammodromus hispanicus species group has been recently shown to include three lineages that differ in morphology (San-Jose et al. 2012), have largely parapatric range but exhibit little evidence of historical gene flow (Fitze et al. 2011), leading to the recognition of these three lineages as distinct species (Fitze et al. 2012). The eastern species can be unambiguously associated with the...