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Articles 10801 - 10830 of 11473
Full-Text Articles in Life Sciences
Notes On Some Species Of The Genus Prosopis, J. C. Crawford
Notes On Some Species Of The Genus Prosopis, J. C. Crawford
Co
This is a valid species, and not a form of P. cressoni as it is given by Metz. Externally the two are easily seperable. P. cressoni has the propodeum coarsely sculptured, while Mesilla has it, very finely wrinkled. The eighth ventral plates of the males are quite different, and are therefore figured. In cressoni the apical lobes are much shorter than the pedicel attaching them to the plate; in Mesilla they are longer than the pedicel.
Descriptions And Records Of Bees - L, T. D. A. Cockerell
Meliponine Bees From Central America, T. D. A. Cockerell
The Bee-Genus Thrinchostoma In Asia, T. D. A. Cockerell
Descriptions And Records Of Bees - Xlix, T. D. A. Cockerell
Die Bienenfauna Von Bremen, J. D. Alfken
Die Bienenfauna Von Bremen, J. D. Alfken
A
Ueber die Bienen von Bremen und Umgegend ist schon eine Reihe von kleineren Arbeiten veroffentlicht worden. Die mir bekannt gewordenen finden sich nachfolgend Seite 9 verzeichnet. Das alteste Verzeichnis ist in dem Werke von Ph. Heineken: Die freie Hansestadt Bremen und ihr Gebiet in topographischer, medizinischer und naturhistorischer Hinsicht, 2. Bd., Bremen 1837, pag. 172 und 173, enthalten. Darin werden die Naman von 49 Bienenarten aufgefuhrt, von welchen 5 zu den Synonymen gestellt werden mussen.
Eine Neue Deutsche Andrena- Art. (Hym.), J. D. Alfken
Eine Neue Deutsche Andrena- Art. (Hym.), J. D. Alfken
A
Schwarz, Kopf und Thorax oben graugelb, leicht verblassend, unten weifslich behaart, an Stirn und Scheitel mit einigen schwarzen Baaren untermischt. Anhang der Oberlippe trapezformig, Oberkiefer stumpf, schwarz, an der Spitze rot. Clypeus sehr dicht und fein kornig gerunzelt, aufserdem zerstreut und ziemlich stark punktiert, mit punktloser Mittellinie. Augenstreifen unten grau, oben braunschwarz. Skulptur von Stirn und Scheitel wegen der dichten Behaarung schwer zu erkennen. Schlafen, wie bei allen Arten der humilis-Gruppe, zu der die vorliegende Art gehort, ziemlich breit. Zweites Geifselglied der Fuhler kurzer al die 3 folgenden zusammengenommen. -Mesouotum aufserordentlich fein kornig gerunzelt, dazwischen flach eingestochen und zerstreut punktiert. …
Some Australian Bees, T. D. A. Cockerell
Descriptions And Records Of Bees - Xlviii, T. D. A. Cockerell
Descriptions And Records Of Bees - Xlviii, T. D. A. Cockerell
Co
No abstract provided.
Descriptions And Records Of Bees - Liii, T. D. A. Cockerell
Descriptions And Records Of Bees - Liv, T. D. A. Cockerell
Descriptions And Records Of Bees - Li, T. D. A. Cockerell
Bees Of The Genus Megachile From Australia, T. D. A. Cockerell
Bees Of The Genus Megachile From Australia, T. D. A. Cockerell
Co
No abstract provided.
A New Bee Of The Genus Emphor, T. D. A. Cockerell
Part Ii. On Some New And Other Species Of Non-Parasitic Hymenoptera In The Collections Of The Zoological Branch Of The Forest Research Insitute, Dehra Dun, Peter Cameron
Bu
No abstract provided.
Beschreibung Einiger Chilenischer Halictus - Arten (Hym.), J. D. Alfken
Beschreibung Einiger Chilenischer Halictus - Arten (Hym.), J. D. Alfken
A
Kopf, Thorax und Mittelsegment dunkel erzgrun oder blaugrun. Hinterleib rot, die niedergedruckten Hinterrandor der einzeln en Ringe gebraunt, der erste Ring ganz oder bis auf einen sehmalen roten Endrand schwarz. Kopf rund, kurz gelbgrau bebaart; Clypeus nicht vorgezogen, etwas breiter als lang, blau, mit violettem Schimmer, seine Basis erzgrun, ziemlich grob und sparsam, an der Basis feiner punktiert. Stirnschildchen rundlich gewolbt, zerstreut und fein punktiert. Wangen, Stirn und Schlafen dicht und fein, Scheitel weniger dioht punktiert.
Eucera Difficilis Duf. = E. Longicornis L. (Hym.), J. D. Alfken
Eucera Difficilis Duf. = E. Longicornis L. (Hym.), J. D. Alfken
A
In dieser Zeitschrift, p. 579, veroffentlicht H. Friese einen Artikel "Uber einige nomenklatorische Anderungen", in welchem er ausfubrt, infolge davon, dafs durch J. Perez die durftige Beschreibung von E. longicornis Linne erganzt und auf eine bestimmte Art (namlich E. longicomis Perez, Friese) gedeutet und festgelegt worden sei, babe nur noch die Auffassung , Bescbreibung und Type von Perez Beweiskraft und nicht die von Linne. Dabei beruft Friese sicb ohne Berechtigung auf die internationalen Regeln der zoologischen Nomenklatur, Berlin 1901, V. § 1, 2 und 3.
Two New Canadian Bees, T. D. A. Cockerell
Biologie Südafrikanischer Apiden, H. Brauns
Chromosomenverhaltinisse Bei Der Spermatogenese Solitarer Apiden (Osmia Oornuta Latr.), Ludwig Armbruster
Chromosomenverhaltinisse Bei Der Spermatogenese Solitarer Apiden (Osmia Oornuta Latr.), Ludwig Armbruster
An
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.
The Dentate Margin Of The Abdomen In Chrysis, T. Algernon Chapman
The Dentate Margin Of The Abdomen In Chrysis, T. Algernon Chapman
Ca
No abstract provided.
Die Pollensammelapparate Der Beinsammelnden Bienen, A. Braue
Some Fossil Insects From Florissant, Colorado, T. D. A. Cockerell
Some Fossil Insects From Florissant, Colorado, T. D. A. Cockerell
Co
No abstract provided.
Notes On Some Canadian Bees, J. C. Crawford
Notes On Some Canadian Bees, J. C. Crawford
Co
The specimens here recorded are part of a collection made at Medicine Hat, Alberta, by Mr. J. R. Malloch, between September 1st and October 15th, 1911. Other species of bees, which have not been studied, were also collected.
On The Status Of Some Species Of The Genus Panurginus, J. C. Crawford
On The Status Of Some Species Of The Genus Panurginus, J. C. Crawford
Co
In a paper on the bees of Nebraska, Messra Swenk and Cockerell say that a comparison of cotypes of Panurginus nebrascensis with specimens of P. ornatipes shows that the two are synonyms and that P. boylei is a subspecies. The types of all of the involved species being in the collections of the U.S. National Museum has led to a re-examination of them and the characters given show them to be abundantly distinct. In view of these characters, what Messrs. Swenck and Cockerell has under the name ornatipes is somewhat of a mystery.
Canadian Bees In The British Museum, T. D. A. Cockerell
New Records Of Bees (Hymen.), T. D. A. Cockerell
The North American Digger Wasps Of The Subfamily Scoliinae, Oscar C. Bartlett
The North American Digger Wasps Of The Subfamily Scoliinae, Oscar C. Bartlett
Ba
This contribution to our knowledge of the sub-family Scoliinae (digger wasps) found in North America, Central America and the West Indies, is the result of work done at the Massachusetts Agricultural College under the direct supervision of Doctor H. T. Fernald, and forms a portion of a thesis for the degree of doctor of philosophy. In it, an attempt has been made to place before those interested, a paper in which our present knowledge of these wasps is systematically arranged and the identification of the species facilitated.
Names Applied To The Eucerine Bees Of North America, T. D. A. Cockerell
Names Applied To The Eucerine Bees Of North America, T. D. A. Cockerell
Co
No abstract provided.
Two Bees New To Canada, T. D. A. Cockerell