Bulletin, Issue 66Smithsonian Institution Press, 1909 - Science |
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Common terms and phrases
abdomen abdominal segment Acroschismus anal Andrena angle antennæ apical basal base of head breadth at base breadth at spiracles breadth of head brown Brues cent females cephalothorax Cephalothorax light Coleoptera collection U. S. convex coxæ crawfordi Cresson cubitus detached branch distance between mandibles dorsal Elenchus elongate elytra Eupathocera exuvium Fabricius Family female parasites female wasps Female.-Length of cephalothorax genera genus Halictophagus Halictoxenos Halictus hexapod host Host.-Andrena Hylechthrus insects Kirby larva larvæ legs length Linnæus lobes male parasites male wasps mandibles maxillæ Mecynocera mesothorax metathorax Nassonow oblique œdeagus pallidus palpi palpus parasites Pentoxocera Perez Perkins Polistes annularis posterior primary veins Prothorax pupa puparium radius and medius Robertson Rossi S. S. Saunders scutellum Smith species Strepsiptera Stylopidæ Stylops Subfamily Superfamily tarsi Texas third thorax tibiæ transverse triungulinids truncate at apex Type.-Cat U. S. National Museum veins from base ventral Viereck wasps Westwood wings XENIDE Xenos vesparum Zool
Popular passages
Page i - The bulletins, issued only as volumes with one exception, are of octavo size, although a quarto form, known as the Special Bulletin, has been adopted in a few instances in which a larger page was deemed indispensable. The Proceedings...
Page 46 - ... found in one Polistes larva, but their presence does not seem to disturb the health of the wasps to any great extent. The wasps die soon after the emergence of the male Xenos, seeming to become dried up. Infected wasps are usually of a lighter color than normal individuals and more feeble of flight. Oogenesis is peculiar and does not resemble that of other insects. Very small larvae show strings of spherical primitive eggs on each side of the gut. These grow and later break up, giving rise to...
Page i - ... based for the most part upon collections in the National Museum. They are monographic in scope and are devoted principally to the discussion of large zoological groups, bibliographies of eminent naturalists, reports of expeditions, etc. The bulletins, issued only as volumes with one exception, are of octavo size, although a quarto form, known as the Special Bulletin, has been adopted in a few instances in which a larger page was deemed indispensable.
Page 51 - I had the good fortune to capture a Stylops flying ; and on the Tuesday following saw at least twenty flying about in a garden at Kingsdown, near Bristol, but so high from the ground that I could capture only about half a dozen. Since that time they have become gradually more scarce, and to-day (May 12th) I have not been able to see one.
Page 46 - I have never seen the male Elenchus retain its hold of the female for more than six seconds; generally it is attached only two or three seconds. I am unable to say if fecundation takes place during this time, or exactly how copulation takes place; evidently the tip of the abdomen is inserted into the brood chamber.
Page 10 - Strepsiptera as a separate order, on a distinct line of descent from that of the Coleoptera, and nearer the Hymenoptera and Diptera, and as highly specialized as the highest insects in any of the orders.
Page 211 - Vergleichend-morphologische Untersuchungen an Koleopteren nebst Grundlagen zu einem System und zur Systematik derselben < (in Archiv für Naturg.
Page 45 - Andrence enjoying but a limited term of existence at large, and it being therefore essential that, within the brief period of a few weeks, the female parasite should fulfil the part assigned her, and the young hexapods be ready to occupy their appointed stations in the larva cells of the bee, soon about to be closed. A corresponding urgency is imposed upon these parasites on...
Page i - ADVERTISEMENT. The scientific publications of the National Museum consist of two series — the Bulletin and the Proceedings. The Bulletin, publication of which was begun in 1875, is a series of more or less extensive works intended to illustrate the collections of the United States National Museum and, with the exception noted below, is issued separately. These bulletins are monographic in scope and are devoted principally to the discussion of large zoological and botanical groups, faunas and floras...
Page 44 - ... case of adult hibernation the ordinary life of a brood of adults does not exceed two months, and for the individuals of a brood rarely over one. The males appear a week to ten days before the females and disappear as much earlier. In general, one brood of adults will have disappeared before the...