94,123 research outputs found

    New records of Xorides (Hymenoptera: Ichneumonidae: Xoridinae) from Florida

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    Xorides albopictus (Cresson) and Xorides calidus (Provancher) are recorded for the first time from Florida. New Florida records are given for Xorides semirufus Townes, previously known only from the holotype female collected near Archer in Alachua County in 1953. A key is provided to the Florida species of Xorides. A photograph of X. semirufus is included.Se citan por primera vez para Florida las especies Xorides albopictus (Cresson) y Xorides calidus (Provancher). Se proporcionan nuevos registros para Florida de Xorides semirufus Townes, especie de la cual antes se conocĂ­a un solo ejemplar, el holotipo coleccionado en 1953 cerca de Archer en el Condado de Alachua. Se da una clave de las especies de Xorides conocidas del Estado de Florida

    On four species of Copepoda new to Chesapeake Bay, with a description of a new variety of Paracalanus crassirostris Dahl

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    At this time, four additional species, unreported by Wilson [1932], can be added to the list of those species to be found within the limits of the bay. These are Acartia tonsa Dana, Cyclops vernalis Fischer, Diaptomus spatulocrenatus Pearse, and Paracalanus crassirostris Dahl var. nudus nov. The specimens from which identifications were made were collected by means of Clarke-Bumpus nets, in use on the motor ship "Mahatru.

    Habronyx Foerster (Hymenoptera: Ichneumonidae: Anomaloninae) in Andean and Neantarctic South Americawith description of new species from Bolivia and Chile

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    Habronyx Foerster occurs in all regions except the Afrotropical and parasitizes lepidopterous larvae (Geometridae, Noctuidae, Saturniidae, Sphingidae, Psychidae). Habronyx albifrons (Spinola) inhabits neantartic Chile and southern Argentina. It is black with a white flagellar annulus and with a strong prepectal carina on the lower half of the mesopleuron. Habronyx albifrons is redescribed and descriptions are given of two new species which belong to a group of their own: Habronyx citrinus Porter, n. sp., from central Chile; and Habronyx punensis Porter, n. sp., from the high Andean steppe of Bolivia, where it attacks noctuid larvae on Chenopodium quinoa Willd. These differ from H. albifrons because the prepectal carina is absent on the mesopleuron, being developed only on the mesosternum, and because they have the flagellum uniformly black and the gaster extensively orange. Habronyx punensis differs from H. citrinus in having a sharp carina on the front, the mesopleural punctures not reticulately confluent, the discoidella weaker and in part desclerotize

    New species and records of Rhyssa and Rhyssella (Hymenoptera: Ichneumonidae: Rhyssinae) from Florida and Central America

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    Rhyssa neotropicae n. sp. is the first Rhyssa to be recorded from the New World tropics, where it was collected in cloud forest at 1800 m on Monte Uyuca near Zamorano, Honduras. It is closely related to the Nearctic R. hoferi Rohwer and R. howdenorum Townes but differs from all other Rhyssa by its complexly yellow and black marked head and body, whose color pattern mimics that of aggressive social vespid wasps (Agelaia) which occur in the same habitat. Rhyssa howdenorum Townes is recorded for the first time from Florida and Oklahoma. The genus Rhyssella, previously unknown in Florida, is represented in that state by R. perfulua n. sp., distinctive in its mostly orange brown coloration, and by R. humida (Say), a black and white species with fulvous on the thoracic pleura and propodeum.Rhyssa neotropicae n. sp. es la primera especie de su genero de ser senalada para la Region Neotropical, donde se la colecciono en selva humeda de alta montana a 1800 msnm en la cima del Monte Uyuca cerca de Zamorano en Honduras. Se trata de una especie muy afin a R. hoferi Rohwer y a R. howdenorum Townes, las cuales se distribuyen en el sur y centro de la Region Neartica, diferenciimdose, no obstante, R. neotropicae de todas las demas Rhyssa por su bello esquema de coloracion con intrincados dis enos amarillos y negros, a semejanza del que osten tan unos vespidos sociales agresivos (Agelaia), que abundan en los mismos ambientes. Se cita pol' primera vez a Rhyssa howdenorum Townes para Florida y Oklahoma. El genero Rhyssella, antes no conocido en la Florida, cuenta de hecho en este estado con 2 especies, R. perfulua n.sp., que destaca pOl' tener el cuerpo casi uniformemente de color castano claro anaranjado, y R. humida (Say), especie negra con dis enos blancos y las pleuras toracicas junto con el propodeo en gran parte de color claro, entre anaranjado y rojo

    A new species of Therion from the Sierras de Cordoba in northwest Argentina (Hymenoptera: Ichneumonidae: Anomalinae)

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    Therion fidalgoi n. sp. is described from the Sierras de Cordoba in the upland subtropical thorn scrub of northwest Argentina. It differs from other South American Therion because of its strongly elevated, bilobed ocellar area, bidentate mandible, and unpectinate tarsal claws.Therion fidalgoi n. sp. habita en el Chaco Serrano de las Sierras de Cordoba en el noroeste subtropical de la Argentina. Se diferencia de las otras especies sudamericanas de su genero por tener el area ocelar del vértice muy elevada, abultada y bilobulada, la mandibula con dos dientes apicales, y las unas tarsales no pectinadas
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