Palaearctic species of Periclistus Förster has been systematically described, but a new inquiline gall-wasp, Periclistus qinghainensis sp. n., is described from China. This species was obtained from an unknown stem gall induced on Rosa sp. Diagnosis, distribution and biology of the new species are described in this paper. After examining the types of Periclistus idoneus Belizin, 1973 and Pericl...

The goal of this paper is to provide background, heuristics and motivation for several conjectures of Deligne [12, 8.2, p. 163], [12, 8.9.5, p. 168] and [23, p. 300] and Goncharov [15, Conj. 2.1], presumably along the lines used to arrive at them. A complete proof of the third and fourth of these conjectures and partial solutions of the first two are given in [19]. A second goal of this paper i...

The type species of the genus Akiodoris, A. lutescens, Bergh, 1880 is redescribed from specimens found in the Sea of Okhotsk, and from the Commander Islands, Russia. A second species in the genus, Akiodoris salacia Millen sp.nov., is described from the Pacific waters off British Columbia, Canada. The type species of the genus Armodoris, A. antarctica Minichev, 1972 from the Davis Sea, is redesc...

New mythicomyiids from Baltic and Rovno amber are described and illustrated herein including one new genus: Riga, n. gen.; and five new species: Glabellula aggregata Evenhuis, n. sp., Glabellula perkovskyi Evenhuis, n. sp., Riga toni Evenhuis, n. sp., Carmenelectra shehuggme Evenhuis, n. sp. and Carmenelectra pernigra Evenhuis, n. sp. The genus Riga is very closely related to the extant genus R...

Numerous studies of host starvation have emphasized pathological effects of parasites on their insect host, but little attention has been focused on the effects of host starvation on the parasites. This study addressed the possibility that parasite life-cycle events could be manipulated by withholding food from the host. The system used was Gregarina niphandrodes (Apicomplexa: Eugregarinida) in...

Companies have moved away from vertical integration, in which a single company converts raw materials into products for end users, to an increasing reliance on supply chains. A typical U.S. company purchases 55% of the value of its products from other companies (Dyer & Singh, 1998). The promise of greater efficiency and the ability to adapt to increasingly volatile market dynamics have prompted...

Heteroderafengi n. sp. is described and illustrated from bamboo (Phyllostachys pubescens Mazel) based on morphology and molecular analyses of rRNA LSU D2D3 region and ITS. This new species belongs to the Cyperi group. Cysts are characterized by prominent vulval cone with ambifenestrate, bifurcate underbridge that is thicker in middle and a 47.0 (40.0-60.0) µm long vulval slit, but without bulla...

A new fossil genus, Eonandeva gen. nov., with two new species: E. helva sp. nov. (type for the genus) and E. latistyla sp. nov., is described from Eocene Baltic amber (~45-40 Ma). Adult males of both new species show the wing venation pattern, shape and chaetotaxy typical for the tribe Tanytarsini. The characters defined as prior apomorphies for the new genus--the gonostylus with a subapical fl...

Financial crises of the magnitude that caused the ongoing Great Recession are relatively rare but dramatic and socially costly events. As was the case with the 1990s emerging markets crises or the Great Depression of the 1930s, the Great Recession was preceded by prolonged booms in credit, economic activity and asset prices, followed by a sharp, sudden crash. This observation has made policymak...

In this work, we present a discrete time modeling framework, in which the shape and dynamics of a Limit Order Book (LOB) arise endogenously from an equilibrium between multiple market participants (agents). The new framework captures very closely the true, micro-level, mechanics of an auction-style exchange. At the same time, it uses the standard abstractions of a continuum-player game to obtai...