O projeto logicista de Frege

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New Neotropical species of Ceraeochrysa Adams (Neuroptera: Chrysopidae)

Species of Ceraeochrysa Adams are distributed from southeast Canada to Argentina. Larvae feed on aphids, thrips, white flies, mites, and neonatal larvae of Lepidoptera in varied agroecosystems. Seven species are known in Venezuela, viz. Ceraeochrysa achillea Freitas & Penny, C. angulata (Navas), C. bitacornua Freitas & Penny, C. caligata (Banks), C. cubana (Hagen), C. everes (Banks), and C. valida (Banks). In this study, three species are described as new to science, Ceraeochrysa melaenopareia sp. nov., Ceraeochrysa pittieri sp. nov., and Ceraeochrysa torresi sp. nov.

A new synonym, a new male description and new geographical records for three Ceraeochrysa species (Neuroptera: Chrysopidae)

Ceraeochrysa Adams is the largest genus in Chrysopini with 62 valid species distributed in the New World. The taxonomy of this group is complex and largely based on male genitalic characters. There are still serious complications, especially with the species that have been described solely from female specimens. The male of C. montoyana (Navas, 1913), unknown previously, is herein described for the first time, and compared with its closest relative, C. claveri (Navas, 1911). Ceraeochrysa acutipuppis Adams & Penny, 1985 is designated as a junior synonym of C. fairchildi (Banks, 1946) based on the evidence that both species share external morphological features uncommon in other species of the genus. The species C. claveri, C. fairchildi and C. montoyana are recorded from Venezuela for the first time. External morphology and genitalia of these insects are described and illustrated.

A new genus of Neotropical Chrysopini (Neuroptera: Chrysopidae)

Titanochrysa Sosa & Freitas is a new genus of Neotropical Chrysopini (Chrysopidae: Chrysopinae) recorded from Costa Rica, Venezuela and Brazil. Titanochrysa gen. nov. shares several external and genitalic characters with Ceraeochrysa Adams, 1982; Chrysopodes Navas, 1913; Cryptochrysa Freitas & Penny, 2000; Parachrysopiella Brooks & Barnard, 1990 and Ungla Navas 1914. It may be distinguished from those genera by its very long sternite 8+9, sternites 2-8 usually with microtholi, male genitalia with the dorsal surface of the arcessus striated, gonosaccus well-developed, bearing elongate gonosetae and microsetae, and a spoon-like gonapsis. Herein, Titanochrysa circumfusa (Burmeister, 1939) [= Chrysopodes circumfusa (Burmeister)] comb. nov. and Titanochrysa pseudovaricosa (Penny) [= Ceraeochrysa pseudovaricosa Penny, 1998] comb. nov. were identified; Titanochrysa ferreirai Sosa & Freitas sp. nov. and Titanochrysa trespuntensis Sosa & Freitas sp. nov. were described. The external morphology, and male and female genitalia of all these species are described. Titanochrysa circumfusa (Burmeister, 1939) comb. nov. is recorded for the first time from Venezuela.

A noção de função em Frege

Pós-graduação em Educação Matemática - IGCE

As concepções de função de Frege e Russell: um estudo de caso em filosofia e história da matemática

Pós-graduação em Educação Matemática - IGCE

Collection of Mary Gardner Marshall, 1795-1957 (inclusive)

Collection consists mainly of correspondence among family members and includes courtship correspondence of J. Doddridge to Julia, 1868-1875, and of Elsa and her future husband, Courtenay Hemenway, 1908-1912. Also included are photographs, genealogical material, a diary, commonplace and wedding books.

The musical scale of the Arabs. Medieval organ pipes and their bearing on the history of the scale. The natural diatonic scale.

From the Proceedings of the American Association for the Advancement of Science, v. 48, 1899.

Di︠e︡ĭstvīi︠a︡ otri︠a︡dov generala Skobeleva v Russko-Turet︠s︡kui︠u︡ voĭnu 1877-78 godov : Lovcha i Plevna, s kartoi︠u︡ i planami /

Mode of access: Internet.

Documental history of law cases affecting Japanese in the United States.

Mode of access: Internet.

American civil engineers' handbook,

"This edition closely follows the plan and the scope of the first four editions of which the late Mansfield Merriman was editor-in-chief."--Pref. to 5th ed.

Exploration archéologique de Délos faite par l'École fran̜caise d'Athènes.

Vols. <6-> "pub. sous la direction de Th. Homolle, M. Holleaux, G. Fougères ... et Ch. Picard"; vols. <13-> edited by Th. Homolle, M. Holleaux, G. Fougères, Ch. Picard and R. Roussel.

The foundations of The origin of species, a sketch written in 1842.

Bibliographical footnotes.

Autobiography of Charles Darwin : with two appendices, comprising a chapter of reminiscences and a statement of Charles Darwin's religious views /

Mode of access: Internet.