A new material on the Neotropical genera Lichenomorphus Cadena-Castaсeda, 2011, Dissonulichen Theia Brunner-Wattenwyl, 1891, Hetaira 1891 and Anaulacomera Stål, 1873 (Phaneropterinae) are considered with description of one subgenus, 16 species six subspecies: Euceraicerca subgen. nov. from s. l.; L. dietrichi sp. Panama (Chiriqui Prov.); piraniucayali subsp. Peru (Ucayali Department); D. roseol...

Roser Martínez Ramos e Iruela, La Gran Vía de Colón Granada. Reconstrucción del proyecto y obra una cala urbana. 1891-1931, Granada, Universidad Granada-Diputación 2021, 320 páginas, ISBN: 978-84-338-6770-4.

Five species of Ammophila are treated. The lectotype of Ammophila separanda F. Morawitz, 1891 is designated and illustrated. The holotype of Ammophila cellularis Gussakovskij, 1930 is redescribed and illustrated. Two new species, Ammophila barkalovi sp. nov. (Kazakhstan) and A. pevtsovi sp. nov. (China), are described and illustrated. The hitherto unknown female of A. vetuberosa Li & Yang, 1994...

Three new species of the spider genus Philoponella Mello-Leitão, 1917 are described: Philoponella opelli n. sp. from Brazil and Ecuador, and Philoponella fluviidulcifis n. sp. , and Philoponella duopunctata n. sp. from Brazil. New records for Philoponella vittata (Keyserling, 1881), P. republicana (Simon, 1891), P. fasciata (Mello-Leitão, 1917) and P. divisa Opell, 1979 are provided for Brazil ...

Although the study of market equilibria has occupied center stage within Mathematical Economics for over a century, polynomial time algorithms for such questions have so far evaded researchers. We provide the first such algorithm for the linear version of a problem defined by Irving Fisher in 1891. Our algorithm is modeled after Kuhn’s primaldual algorithm for bipartite matching.

Steps in the physiological construction of the neurone concept are described. Early ideas on the function of the nerve cell led to later polemics on the neurone doctrine and the speculative attitude of histophysiology. Researches of Sherrington and Adrian emerged from a specific British context, and confronted American oscillography and Berger rhythm. At the end of various polemics, the neurone...