Results 141 to 150 of about 989 (180)

The Joint Spermatozoa of Dytiscidae

1983
The paired or grouped spermatozoa of Dytiscidae have been thoroughly described by Ballowitz (1895), who studied no fewer than 12 species. Already in the light microscope this author gave a precise account of the most peculiar forms of the heads, which may even vary to a large extent within different species of this family.
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Cytochemistry and fine structure of elimination chromatin in Dytiscidae

Experimental Cell Research, 1968
Abstract The elimination chromatin of Dytiscidae contains the whole nucleolar material. It synthesizes both DNA and RNA independently of the chromosomes. Once synthesized, these nucleic acids stay within the elimination chromatin mass throughout the differentiation process until the whole structure is eliminated from the oocyte nucleus.
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Biliverdin IXγ in beetles (dytiscidae: laccophilinae)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1984
Abstract 1. 1. A bile pigment has been isolated from the green adults of the water beetle Laccophilus minutus and shown: to be biliverdin IXγ. Its identification is is based on co-chromatography with the four authentic biliverdin isomers, electronic spectra, mass spectra and chemical degradation. 2. 2.
Hartmut Kayser, Konrad Dettner
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???????? ?????????????? ??????????-?????????????????? ???????? Dytiscus (Coleoptera, Dytiscidae)

2023
???????????? ???? ?????????????? ??????????-?????????????????? ???????? Dytiscus ?? ?????????? ???????????????? ???????????????? ???? ?????????????? ?????????????????????? ???????? ?? ???????????? 1976 ???? ???????????? 1977 ??. ???? ?????????????????????? ???????????? ?????????????? ?????????????????????????? ???????????????????? ??????.
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Chemical Ecology and Biochemistry of Dytiscidae

2014
The chapter deals with chemical mechanisms that help to control intra- and interspecific interactions with respect to predaceous diving beetles. Apart from chemical receptors and senses within Dytiscidae there are described intraspecific (pheromones) and especially interspecific interactions with respect to this water beetle family.
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Dytiscidae

1987
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Five new species of the genusPapuadytesBalke, 1998 from New Guinea (Coleoptera: Dytiscidae)

Aquatic Insects, 2005
Michael Balke, Katayo Sagata
exaly  

Dytiscidae

2006
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Description of the larva ofCanthyporus kenyensisBilardo & Sanfilippo (Coleoptera: Dytiscidae: Hydroporinae) with implication for the phylogeny of the Hydroporini

Aquatic Insects, 2006
Yves Alarie
exaly  

Description of the pupa ofNebrioporus ceresyi(Aubé) (Coleoptera: Dytiscidae)

Aquatic Insects, 2006
Andrea Di Giulio
exaly