\u3ci\u3eMcphersonarcys\u3c/i\u3e, a New Genus for \u3ci\u3ePentatoma Aequalis\u3c/i\u3e Say (Heteroptera: Pentatomidae)

A new monotypic genus, Mcphersonarcys is erected to hold Pentatoma aequalis Say, a species formerly placed in the genus Hymenarcys. Based on the distribution of 19 character-states Hymenarcys forms a clade with its sister genus Coenus. Both genera are related to the large genus Euschistus. Mcphersonarcys is basal to Euschistus, whereas the clade with Hymenarcys and Coenus is derived. Removal of P. aequalis to a new genus resolves the paraphyly of Hymenarcys sensu lato

Book review: RATCLIFFE, B. C AND M. J. PAULSEN. 2008. \u3ci\u3eThe Scarabaeoid Beetles of Nebraska\u3c/i\u3e. Bulletin of the University of Nebraska State Museum 22, 570 p.

Book review of The Scarabaeoid Beetles of Nebraska by Brett C. Ratcliffe and Matt J. Paulsen. Bulletin of the University of Nebraska State Museum 22, 2008, 570 p

Shock Formation in a Multidimensional Viscoelastic Diffusive System

We examine a model for non-Fickian "sorption overshoot" behavior in diffusive polymer-penetrant systems. The equations of motion proposed by Cohen and White [SIAM J. Appl. Math., 51 (1991), pp. 472–483] are solved for two-dimensional problems using matched asymptotic expansions. The phenomenon of shock formation predicted by the model is examined and contrasted with similar behavior in classical reaction-diffusion systems. Mass uptake curves produced by the model are examined and shown to compare favorably with experimental observations

Population Dynamics of Off-Host Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) Larvae in Response to Habitat and Seasonality in South Texas

The cattle tick, Rhipicephalus microplus (Canestrini), is an economically destructive arthropod because of its ability to vector bovine babesiosis. It is known that cattle ticks can spend 80–90% of their lifecycle as questing larvae, yet the effect of climatic factors on their off-host behavior and survival is unclear. The goal of this study was to measure the effects of specific ecological factors on off-host questing larvae in nature. The study was conducted in a south Texas pasture over a two-year period, during which time larval populations were surveyed. Simultaneously, weather variables—precipitation, relative humidity, and ambient temperatures—were recorded. Larval survival rates varied among seasons, with the overall highest populations recorded in the spring and the lowest in the fall by a ratio of 20:1. In the winter, the larger numbers were collected from exposed habitats at a ratio of 6:1. Conversely, canopied habitats in the summer had 10-fold larger larval numbers. In the spring, exposed and canopied habitats showed no difference in tick larval survival rates. The results show that the interaction between season and habitat strongly influence off-host questing tick survival. Relative humidity was a key weather variable

Taxonomic synopsis of the Old World asopine genera (Heteroptera: Pentatomidae)

The subfamily Asopinae of the stinkbug family Pentatomidae is revised for the Old World with a key to the genera and a review of the species with nomenclatural changes. The genus Tahitocoris is removed from the Asopinae and placed tentatively with the Podopinae. The genus Breddiniella is reduced to a synonym of Cazira. The genus Incitatus is reduced to a synonym of Martinina. The genus Platynopus is divided into three genera by the restriction of Platynopus to include only five Indo- Pacific species; the elevation of the subgenus Montrouzieriellus to the level of full genus, and the erection o fa new genus Platynopiellus for the African species formerly placed in Platynopus. A new genus Australojalla is erected for Jalla versicolor. The genera Cantheconidea and Eocanthecona are defined and their respective species aligned in concordance with their definitions. Fourteen species are thus transferred from Cantheconidea to Eocanthecona creating the following new combinations: Eocanthecona japanicola, Eocanthecona binotata, Eocanthecona latipes, Eocanthecona mitis, Eocanthecona neotib ialis, Eocanthecona ornatula, Eocanthecona parua, Eocanthecona plebeja, Eocanthecona robusta, Eocanthecona rufescens, Eocanthecona shikokuensis, Eocanthecona thomsoni, Eocanthecona tibialis, and Eocanthecona uollenhoueni. Eocanthecona migratoria is transferred to the genus Afrius creating the new combination Afrius migratorius. Also, Canthecona populusi is transferred to Eocanthecona giving the new combination Eocanthecona populusi. Anasida ikrami is transferred to the genus Pseudanasida giving the new combination Pseudanasida ikrami. Afrius discolor glypsoides is placed in synonymy under Cantheconadiscolor. Asopus rufus is synonymized under Amyotea malabarica. Arma neocusta and Arma neoinsperata are synonymized under Arma custos

Wright: Comparative Conflict Resolution Procedures in Taxation

A Review of Comparative Conflict Resolution Procedures in Taxation edited by L. Hart Wrigh

Hic-5, an adaptor-like nuclear receptor coactivator

In recent years, numerous nuclear receptor-interacting proteins have been identified that influence nuclear transcription through their direct modification of chromatin. Along with coactivators that possess histone acetyltransferase (HAT) or methyltransferase activity, other coactivators that lack recognizable chromatin-modifying activity have been discovered whose mechanism of action is largely unknown. The presence of multiple protein-protein interaction motifs within mechanistically undefined coactivators suggests that they function as adaptor molecules, either recruiting or stabilizing promoter-specific protein complexes. This perspective will focus on a family of nuclear receptor coactivators (i.e., group III LIM domain proteins related to paxillin) that appear to provide a scaffold to stabilize receptor interactions with chromatin-modifying coregulators