Results 101 to 110 of about 22,027 (226)

A new Anagrus (Hymenoptera: Mymaridae) from Argentina, an egg parasitoid of Delphacodes sitarea (Hemiptera: Archaeorrhyncha: Delphacidae) [PDF]

open access: yes, 2004
A new species of the mymarid wasp genus Anagrus Haliday is described from the Province of Tucumán, Argentina. The type series of A. Anagrus miriamae, S. Triapitsyn and Virla sp. nov.
Triapitsyn, Serguei   +1 more
core  

New Phycitiplex Porter (Hymenoptera, Ichneumonidae) from Subandean Desert in northwest Argentina [PDF]

open access: yes, 2008
Six new species of Phycitiplex (P. obscurior, P. tricinctus, P. unicinctus, P. peralta, P. trichroma, and P. lepidus) are described from material taken by Malaise trap in a humid ravine at Santa Vera Cruz in the Subandean Desert (Monte) of La Rioja ...
Porter, Charles C.
core   +1 more source

The Notostigmata, a new suborder of Acari [PDF]

open access: yes, 2007
The following studies on this new suborder have been made on material included in the famous French Arachnologist E. Simon's rich collection and lent by him to Drs. H. J. Hansen and W. Sørensen. ..
With, C. J.
core  

Fine structure of the external sheaths of the ovipositor of Aphidius ervi (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2018
The function and structure of the ovipositor in Hymenoptera have been studied intensively, although there is a lack of information on the external sheaths.
Sara RUSCHIONI   +4 more
doaj   +1 more source

The Palaearctic species of Pristaulacus Kieffer, 1900 (Hymenoptera, Aulacidae) : remarks on taxonomy, systematic, and biogeography [PDF]

open access: yes, 2008
Taxonomic, systematic, and biogeography knowledge on the Palaearctic species of Pristaulacus Kieffer 1900 is summarized. Twenty-one valid species are recognized.
Pilato, Giovanni   +1 more
core  

A Comparative Functional Approach to the Host Detection Behaviour of Parasitic Wasps. 1. A Qualitative Study on Eucoilidae and Alysiinae [PDF]

open access: yes, 1985
We studied host detection behaviour in Alysiinae (Braconidae; Ichneumonoidea) and Eucoilidae (Cynipoidea), the larvae of which are endoparasitoids of fly larvae and in- vestigated whether this behaviour is determined by their descent or can be considered
Alphen van, J.J.M., Vet, L.E.M.
core   +2 more sources

New and Little-Known Agromyzidae from Michigan (Diptera: Acalyptratae) [PDF]

open access: yes, 2017
The latest major work on North American Agromyzidae, The Agromyzidae of Canada and Alaska (Spencer, 1969), lists 290 regional species. Of that number, half (147) are new species and 23 are previously described species newly recorded for the continent. It
Steyskal, George C.
core   +3 more sources

Morphology and function of the ovipositor mechanism in Ceraphronoidea (Hymenoptera, Apocrita)

open access: yesJournal of Hymenoptera Research, 2013
The ovipositor of apocritan Hymenoptera is an invaluable source of phylogenetically relevant characters, and our understanding of its functional morphology stands to enlighten us about parasitoid life history strategies. Although Ceraphronoidea is one of
Andrew Ernst, Istvan Miko, Andrew Deans
doaj   +1 more source

Morphology of exophytic ovipositors in dragonflies (Odonata: Gomphidae, Corduliidae, Libellulidae), with particular reference to ovipositor muscles and sensilla

open access: yesInternational Journal of Odonatology, 2011
A comparative study of female external genitalia was carried out in representatives of three dragonfly families that lay eggs exophytically, with special emphasis placed on skeletal musculature and sensilla. Female external genitalia are characteristically represented by the vulvar lamina and rudiments on the 9th sternum.
openaire   +1 more source

Five new species and three new subspecies of Erebidae and Noctuidae (Insecta, Lepidoptera) from Northwestern North America, with notes on Chytolita Grote (Erebidae) and Hydraecia Guenée (Noctuidae) [PDF]

open access: yes, 2013
This is the publisher’s final pdf. The published article is copyrighted by Pensoft Publishers and can be found at: http://www.pensoft.net/journals/zookeys/.Several taxonomic issues in the moth families Erebidae and Noctuidae are addressed for ...
Crabo, Lars   +4 more
core   +3 more sources

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