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The Floral Hosts And Distribution Of A Supposed Creosote Bush Specialist, Colletes Stehpeni Timberlake (Hymenoptera: Colletidae), Rebekah Andrus Nelson, Terry Griswold
The Floral Hosts And Distribution Of A Supposed Creosote Bush Specialist, Colletes Stehpeni Timberlake (Hymenoptera: Colletidae), Rebekah Andrus Nelson, Terry Griswold
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Colletes stehpani Timberlake is thought to be a narrow oligolege of creosote bush, Larrea tridentata (DC.) Coville (Zygophyllaceae) with limited distribution in the Sonoran desert of the Western United States. Based on appraisal of a museum specimens and fieldsurveys from 1999 to 2001 on 21 sand dunes, we foundd C. stephani to be a much more widely distributed psammophile of theSonoran, Mojave, and Great Basin Deserts that utilizes two unrelated plant pollen scources,Larrea Cav. and Psorothamnus Rydb. (Fabaceae). The geologic history of the region suggests a potential host shift from the more ancient occupant, Psorothamnus, to the Neogene colonizer, Larrea.
A National Program Of Research For Bees And Other Pollinating Insects And Insects Affecting Man, U.S. Department Of Agriculture
A National Program Of Research For Bees And Other Pollinating Insects And Insects Affecting Man, U.S. Department Of Agriculture
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The United States Department of Agriculture and State Agricultural Experiment Stations are continuing comprehensive planning of research. This report is a part of this joint research planning and was prepared under recommendation 2 (page 204, paragraph 3) of the National Program of Research for Agriculture.
Protecting Honey Bees From Pesticides, U.S. Department Of Agriculture
Protecting Honey Bees From Pesticides, U.S. Department Of Agriculture
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Honey bees frequently are in danger of being killed when crops are treated with pesticides. Honey bees produce honey and beeswax valued at $55 million annually; but even more significant, the annual value of crops that require bee pollination exceeds $1 billion. For this reason, farmers and beekeepers should cooperate in protecting the bees from pesticides. Observance of precautions recommended in this publication can significantly reduce bee losses from pesticide poisoning.
Real Sociedad Espanola De Historia Natural, Enrique Asensio
Real Sociedad Espanola De Historia Natural, Enrique Asensio
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Labro alargado, obtuso. Mandíbulas dentadas. Celdilla radial grande, estrechada al extremo. Dos cubitales casi iguales. Segundo nervio transverso-discoidal más hacia el ápice del ala que el segun-do t ransverso-cubital. Escudet e y postescudete sin dientes. Uñas con pulvillum. Abdonien corto, grueso, sin escobill a ventral en las, inerme en los (sólo en St. signata con una espina.)
Notes Supplementaires Sur Les Bourdons De La Belgique, F. J. Ball
Notes Supplementaires Sur Les Bourdons De La Belgique, F. J. Ball
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En 19l4, j'ai publié dans les Annales de notre Sociélé,Tome LVIII, une liste provisoire des Bourdons de la Belgique, !Jasée sur les col-lections qui se lrouvaieut à celle époque au Musée Hoyal d'Histoire Naturelle. A la sui le des chasses mélhodiques entreprises sous la direction du Jusée dans certaines localités représenlalives des diverses parties du pays, le matériel à notre disposition s'est con-sidérablemen l accru, el quoique l'élude de ce matériel soit loin d'être achevée,je crois le moment venu de soumeltre quelques notes au sujet des nouvelles variétés trouvées et des modifications qu'il y a lieu d'apporter dans la classification …
Zum Problem Der Bienenzelle, Ludwig Armbruster
Zum Problem Der Bienenzelle, Ludwig Armbruster
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Die der vorliegenden Arbeit zugrunde liegenden Untersuchungen und Beobachtungen fallen fast samtlich in die Jahre 1912 und 1913. Im Jahre 1913 war die Arbeit zum weitaus groBten Teil druckfertig. Die lange Zeit zwischen Abfassung und Drucklegung und all das, was dazwischen lag, hatte zur wenig erfreulichen Folge, daB die Korrektur sich schwierig gestaltete, da das Material an Notizen und Auszugen nur schwer mehr zusammenzubringen war, und daB die auslandische Literatur der Zwischenzeit nur mangelhaft verfolgt und verwertet werden konnte. Immerhin gewann ich dadurch Gelegenheit, die reiche Berliner Sammlung zu verwerten. DaB in der Zwischenzeit manches Sachdienliche zum Problem von anderer …
The Psammocharidae Of Western North America, Nathan Banks
The Psammocharidae Of Western North America, Nathan Banks
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Reports on the scientific results of the expedition to the eastern topical pacific, in charge of Alexander Agassiz, by the U.S. fish commission steamer “albatross” from October, 1904, to March, 1905, Lieutenant Commander L. M. Garrett, U.S.N., Commanding, published or in preparation:
Notes And Descriptions Of Some Fossorial Hymenoptera, Nathan Banks
Notes And Descriptions Of Some Fossorial Hymenoptera, Nathan Banks
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Below are a few descriptions and notes on Philanthidae and Scoliidae.
New Psammocharidae And Philanthidae, Nathan Banks
New Psammocharidae And Philanthidae, Nathan Banks
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The following new species are mostly from the northern and northwestern parts of the United States or from Canada.
Halictinae De Cuba, Carl F. Baker
Halictinae De Cuba, Carl F. Baker
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Las Halictinae, especialmente en los zonas templadas, forman uno de los grupos más grandes de abejas silvestres, y son de interés biológico especial en cuanto al importante papel que juegan en la polinización de las plantas. Ninguna abeja de este género es grande y en su mayoría son pequeñas. Al-gunas són de color colorado brillante pero la mayor parte carece de adornos. Las alas anteriores tienen el estigma muy desarrollado, dos ó tres células submarginales y la vena basal muy encorvada. Todas las hembras tienen en el último segmento dorsal un canal, llamado la rima, que á menudo se extiende …
Parnassius Apollo In Bayern Und Einigen Grenzbezirken, Max Bachmann
Parnassius Apollo In Bayern Und Einigen Grenzbezirken, Max Bachmann
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Als H. Stichel im Jahre 1899 den mitteleuropäischen Parn. apollo von der nordischen Rasse unter dem Namen geminus abtrennte, hat diese Teilung nicht die uneingeschränkte Anerkennung der Entomologen gefunden und als er dann später im Jahre 1906 noch die Unterart melliculus aufstellte, bedeutete diese Neuerung „ einen Stich ins Wespennest", wie er sich selbst ausdrückte. Der Grund hier-für ist jedoch kaum in einem Mangel der Zweckmäßigkeit begründet, sondern der ungenauen vom Autor selbst nur als relativ brauchbar bezeichneten Diagnose zuzuschreiben. Für SticheI bedeutete geminus einen Kollektivbegriff für „ die Gesamtheit der den europä-ischen Hoch- und Mittelgebirgen" angehörigen Formen mit Ausnahme …
Problem Des Hummelstaates, Ludwig Armbruster
Problem Des Hummelstaates, Ludwig Armbruster
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Die Honigbienen, dieses Paradigma der Biologie, geben trotz aller "Apistik" uns noch manche Rätsel auf. So wichtige Aufschlüsse wir für eine richtige Bewertung der Bienenbiologie aus einem eingehenderen Studium der Hummeln erwarten dürfen, so lückenhaft ist - freilich relativ gesprochen - andererseits das, was wir genaueres von deren Leben und Treiben wissen.
Nachtrage Und Berichtigungen Zu Burgeff H., Kommentar Zum Katalogus Lepidopterorum (Gattung Zygaena) Im Laufenden Jahrgang Der Mitt. Der Munch. Ent. Ges. P.35-70, Max Bachmann
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Z. Erebus Stdgr. Die Fig. 18 ist, wie sich bei einem nochmaligen Vergleich mit dem Original herausstellt, durch die bei dem Stück allein vorgenommene Retouche der roten Flügelteile diesem so unähnlich geworden, daß es am besten ist, sie als nicht vor-handen zu betrachten. Als Type für die ab. interrupta hat dann die Figur Romanoff's in Rom. Mem. Lep. 1. (1884) pi. IV, f. 4 zu gelten.
Nachtrage Und Berichtigungen Zu Burgeff H., Kommentar Zum Katalogus Lepidopterorum (Gattung Zygaena) Im Laufenden Jahrgang Der Mitt. Der Munch. Ent. Ges. P.35-70, Max Bachmann
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Z. Erebus Stdgr. Die Fig. 18 ist, wie sich bei einem nochmaligen Vergleich mit dem Original herausstellt, durch die bei dem Stück allein vorgenommene Retouche der roten Flügelteile diesem so unähnlich geworden, daß es am besten ist, sie als nicht vor-handen zu betrachten. Als Type für die ab. interrupta hat dann die Figur Romanoff's in Rom. Mem. Lep. 1. (1884) pi. IV, f. 4 zu gelten.
Les Bourdons De La Belgique, F. J. Ball
Les Bourdons De La Belgique, F. J. Ball
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Le genre Boinbus, si intéressant à divers points de vue, est un genre dont la systématique présente encore de grandes lacunes et réclame de nombreuses recherches. La rléfinilion de ses espèces manque absolument de précision. Cela provient de la variabilité extrê me qui y règne. D'une part on peut renconfrer de grandes variations de coloris chez des exemplaires appartenant à une mê me espèce; et de l'autre des individus d'aspect presque identique se difîérencient par des caractères morphologiques importants, mais peu visibles. Il s'ensuit que la liste des espèces et des variétés pour un même pays varie considérablement suivant les …
Chromosomenverhaltinisse Bei Der Spermatogenese Solitarer Apiden (Osmia Oornuta Latr.), Ludwig Armbruster
Chromosomenverhaltinisse Bei Der Spermatogenese Solitarer Apiden (Osmia Oornuta Latr.), Ludwig Armbruster
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A soemwhat labored paper, packed with detail, and heaviy documented. The author attempts to combine biological data - his own data culled from literature - with cytological observations in an attempt to shed light on the cytology of sex determination in these bees.
Notes On The Eastern Species Of Cerceris (Hym. Philanthidae), Nathan Banks
Notes On The Eastern Species Of Cerceris (Hym. Philanthidae), Nathan Banks
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The species of Cerceris are among the prettiest of our entomophilous wasps; usually black, with bands and spots of yellow, of the general appearance of many species of Crabro. They are most abundant on flowers in July, some occur in June, and others as late as October. They are not especially shy, so are readily taken in the net.
Psammocharidae, Nathan Banks
Psammocharidae, Nathan Banks
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I make a new name for our species without hairs on the metanotum, not knowing whether it will include the typical Ageuia or not. The type of Melanaporus Ashm. is a two-celled form of P. argenteus or a close ally.
Studies In Oxybelidae I, Carl F. Baker
Studies In Oxybelidae I, Carl F. Baker
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Having been engaged for many years in the collection and study of material in this family, such results as have been obtained will now be published from time to time. A provisional table of the genera is presented herewith. Dr. Brauns has kindly sent a specimen of his South African Oxybelomorpha. It is evidently closely related to Oxybelus, but possesses mandibles deeply emarginate below. The sub-median cell is much shorter than the median, the transverse median nervure uniting with the median much before the origin of the larval nervure; but this condition occurs also among some of our American Oxybelus. …
Hymenoptera Two New Bees Of The Genus Ceratina, Carl F. Baker
Hymenoptera Two New Bees Of The Genus Ceratina, Carl F. Baker
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Female Length 11 mm. Head mostly except the black vertex, thorax except the black entire median portion of the menosotum, brilliant green, with a slight brassy tinge. Abdomen deep shining purple. Antennae and legs piceous, the latter, together with the venter, covered with rather long and thick ferrugineous pubescence. Wings uniformly pale smoky and iridescent, the veins ,lark, the stigma translucent. First submarginal cell about twice the length of second, the first abscissa of radius equalling third.
Hymenoptera The Bee Genus Pasiphae In North America, Carl F. Baker
Hymenoptera The Bee Genus Pasiphae In North America, Carl F. Baker
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While in Central America I collected a number of species of Prosopis (descriptions to appear soon) which were typical representatives of that genus in every way. Scattered through this collection were a number of bees, very Prosopis-like, but possessing a truncated and appendiculated marginal cell and otherwise corresponding to Ashmead 's description of the genus Pasiphae, previously known only from the southern Andean region. In Trans. Am. Ent. Soc. XXIX, p. 186, Cockerell says "Mr. Vachal remarks that this has a distinct tibial pollen brush,. and cannot go with the Prosopidae. It appears to be a Colletid with only two …
Additions To The Recorded Hymenopterous Fauna Of The Phillipine Islands, With Descriptions Of New Species, William H. Ashmead
Additions To The Recorded Hymenopterous Fauna Of The Phillipine Islands, With Descriptions Of New Species, William H. Ashmead
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In my previous papers on the Hymenoptera fauna of the Philipines Islands, I find that I overlooked many species recorded from the archipelago. Below, therefore, I give a list of these omissions and follow with descriptions of two ne wgenera and twenty-eight new species received recently from Father Robert Brown, S.J., of the Phillipine Weather Bureau, Manila, Prof. Charles S. Banks, of the Governement Laboratories, Manila, and Dr. E. A. Mearns, U.S.A.
A New Genus And Some New Species Of Hymenoptera From The Phillipine Islands, William H. Ashmead
A New Genus And Some New Species Of Hymenoptera From The Phillipine Islands, William H. Ashmead
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All the Hymenoptera described in this paper were received from Father W. A. Stanton, who captured them in the Observatory Garden at Manila, P.I.
Descriptions Of Two New Hymenoptera From Japan - I, William H. Ashmead
Descriptions Of Two New Hymenoptera From Japan - I, William H. Ashmead
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For several years past I have been classifying, arranging and determining the Japanese Hymenoptera in the National Museum, presented by several valued correspondents, among whom special mention should be made of Dr. Mitsukuri, of Tokyo, Mr. Y. Nawa, of Gifu, Dr. Matsumura, of Sapporo, and Mr. A. Koebele, now government entomologist of the Hawaiian Islands, whose contributions are of especial value and contain many new species, particularly among the parasitic families. The new species in the superfamilies Sphecoidea, Vespoidea, Proctotrypoidea, Cynipoidea and Chalcidoidea are treated here. Those in the Ichneumonoidea and other superfamilies will be described in another paper.
A List Of The Hymenoptera Of The Phillipine Islands, With Descriptions Of New Species, William H. Ashmead
A List Of The Hymenoptera Of The Phillipine Islands, With Descriptions Of New Species, William H. Ashmead
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Considering the extent of the Philippine Islands, extending as they do over 1,200 miles of territory, our knowledge of the Hymenopterous fauna is singularly meager. More attention should be given to collecting these important insects. Since the islands came into the possession of the United States much material has been sent to the National Museum, and with the hope that more attention will be given to the collecting and study of this order in the Philippines, I give be-low a list of the known species, and describe most of the new species now in our collection.
Descriptions Of New Genera And Species Of Hymenoptera From The Phillipine Islands, William H. Ashmead
Descriptions Of New Genera And Species Of Hymenoptera From The Phillipine Islands, William H. Ashmead
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In a paper entitled A List of the Hymenoptera of the Phillipine Islands, with descriptions of New Species, I recorded 183 species of these insects from the Phillipines, although several doubtful species mentioned by Fr. Castro de Elera in his Catalogo de todo la Fauna Fillipinas were cited but not included in this number. Two genera and thirty-one species were described as new to science in this first paper.
Hymenoptera Of Alaska, William Harris Ashmead
Hymenoptera Of Alaska, William Harris Ashmead
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The following paper on the Hymenoptera of Alaska, by William Harris Ashmead, Assistant Curator, Division of Insects, U. S. National Museum, was originally published in the Proceedings of the Washington Academy of Sciences, vol. IV, pp. 117-274, May 29, 1902. It is here reprinted from the same electrotype plates, so that it may be quoted exactly as if it were the original. The original pagination has been preserved and transferred to the inner or hinge side of the page, where it is enclosed in brackets, thus [118]; while the consecutive pagination of the present volume has been added in the …
Svensk Insektfauna Steklar Gaddsteklar Andra Rofsteklar, C. Aurivillius
Svensk Insektfauna Steklar Gaddsteklar Andra Rofsteklar, C. Aurivillius
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Hufvudet medelmåttigt eller stort. Ögonen oftast nakna, mycket sällan håriga (Entomognathus), på insidan vanligen hela, sällan med en inskärning (Phila11thus, Trypoxylon); de äro oftast så stora, att de nå ned till mandiblernas rot, hvarigenom kinder komma att saknas; de stå antingen parallella eller närma sig hvarandra uppåt eller nedåt. Punktögonen tre ställda i trekant, vanligen halfklotformiga, de öfre sällan otydliga och långsträckta (T achytes). Öfverläppen är oftast liten och mer eller mindre dold under munskölden, sällan (Bembex) mycket stor och inslagen under mandiblern a. Mandiblerna äro vanligen skärformiga, enkla eller tandade. Underkäkarne och tungan äro korta och bilda således endast …
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.17, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.17, William H. Ashmead
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This tribe, to the initiated, is readily distinguished by the eyes, which are usually quite differently shaped, rarely smooth and shining, and always distinctly facetted, although a few females have small ellipsoidal or somewhat rounded eyes, as in the tribes Photopsidini and Sphaerophthalmini, and therefore, if the greatest care is not given to other characters, could be confused with certain genera in those tribes.
A New Ammoplanus, William H. Ashmead
A New Ammoplanus, William H. Ashmead
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Length 2.5mm. Black, the surface smooth and shining, except the metanotum which is opaque, shagreened and with some raised lines; the mandibles, except the teeth, the palpi and the tegulae, white; antennae pale testaceous whitish beneath; legs black the tips of trochanters, the apices of the femora, all tibiae except a brownish spot toward apex of the hind pair and the tarsi, pale honey-yellow; wings hyaline, with the subcostal vein towards apex, and the large stigma brown ; the other veins are pallid or nearly hyaline.