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A new genus and species in Velocipedidae (Heteroptera) Naturalis
Doesburg Jr., P.H. van.
Dedicated to Dr. H. C. Blöte on the occasion of his 70th birthday. In the collection of the Rijksmuseum van Natuurlijke Historie at Leiden, the author found a peculiar and most interesting specimen belonging to the Heteropterous family Velocipedidae. It appears to be quite different from the representatives of Scotomedes Stål, 1873, the only genus hitherto known is this family. The specimen is not in a very good state of preservation, but complete enough to serve as the basis for the following description. Bloeteomedes nov. gen. Typus: Β. borneensis nov. spec. Distinguishable from Scotomedes by the following characters: head longer, more cylindrical, underside without a median keel; first antennal segment extending far beyond apex of head, its length more...
Tipo: Article / Letter to the editor Palavras-chave: 42.75.
Ano: 1970 URL: http://www.repository.naturalis.nl/record/319010
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A revision of the New World species of Dysdercus Guérin Méneville (Heteroptera, Pyrrhocoridae) Naturalis
Doesburg Jr., P.H. van.
CONTENTS Introduction................... 3 History.................... 4 Material.................... 6 Methods.................... 8 Taxonomic morphology................ 9 Taxonomy................... 14 The genus Dysdercus................ 18 Key to the American species.............. 19 The Dysdercus mimus group............. 23 The Dysdercus jamaicensis group............ 42 The Dysdercus flavolimbatus group............ 60 The Dysdercus maurus group............. 93 The Dysdercus albofasciatus group............ 144 The Dysdercus fernaldi group............. 157 Infrageneric relationships............... 170 Host plants................... 183 Natural enemies.................. 189 Colour patterns and mimicry.............. 192 Appendix : External morphology of...
Tipo: Article / Letter to the editor Palavras-chave: 42.75.
Ano: 1968 URL: http://www.repository.naturalis.nl/record/317699
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Über valväre Stridulation bei Schwärmer (Lepidoptera Sphingidae) Naturalis
Doesburg Jr., P.H. van.
Während nächtliches Sammeln am Licht in Suriname (Süd-amerika) im Jahre 1962, fing ich ein Männchen von Protambulyx strigilis (L.) das, zu meiner Überraschung, stridulieren konnte. Beim Abtöten des Schwärmers mittels direkter Einspritzung von Alkohol im Thorax, wodurch eine blitzschnelle Immobilisation der Flügel und Beine erreicht wird, fing das Tier an zu zirpen mit einem klaren „zietie, zietie, zietie...". Als ich daraufhin die Motte näher an das Licht brachte, sah ich am Hinterleib, welches nach einer solchen Einspritzung noch einige Zeit am Leben bleibt, das letzte sichtbare Segment, nämlich die Valven, ein und ausschieben, im gleichen Rythmus wie der Laut produziert wurde. Durch diese Beobachtung war ich im stande das Stridulationsorgan ohne weiteres...
Tipo: Article / Letter to the editor Palavras-chave: 42.75.
Ano: 1966 URL: http://www.repository.naturalis.nl/record/319053
Registros recuperados: 3
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