Results 71 to 80 of about 1,410 (178)

Verzeichnis der bei Wellingholthausen bisher aufgefundenen Raubwespen : mit biologischen und litterarischen Notizen [PDF]

open access: yes, 2013
Was das nachfolgende Verzeichnis betrifft, so bin ich mir recht wohl bewusst, dass dasselbe auf Vollständigkeit keinen Anspruch machen kann. Die Reihe der Sammeljahre ist noch zu klein, und nur wenige Stunden - in der That horae subsicivae - kann ich ...
Sickmann, Franz
core  

Insect species described from Big Bend National Park [PDF]

open access: yes, 2002
The list contains 192 insect species, of which 139 are primary types.
Van Pelt, Arnold F.
core   +1 more source

Flying fruit flies correct for visual sideslip depending on relative speed of forward optic flow [PDF]

open access: yes, 2013
As a fly flies through its environment, static objects produce moving images on its retina, and this optic flow is essential for steering and course corrections. Different types of rotation and translation produce unique flow fields, which fly brains are
Cabrera, Stephanie, Theobald, Jamie
core   +2 more sources

L'impact écologique de Quelea Quelea (L.) sur les savanes sahéliennes : raisons du pullulement de ce Plocéide [PDF]

open access: yes, 1968
The ecological impact of a nesting colony of the social weaver Quelea quelea upon a sahelian savanna of southern Mauritania has been estimated. The average density of nests was 12,400 per hectare, each nest beeing used by one breeding pair and 3 ...
Morel, Gérard
core   +1 more source

Actual list of Aculeata (hymenoptera) of Łódź City [PDF]

open access: yes, 2008
The paper presents actual list of 377 species (36% of Polish fauna) from ten families of Aculeata noted in Łódź during last 30 years. Among them there are 17 protected and 64 threatened species from the „Red List” .
Kowalczyk, Jan, Szczepko, Katarzyna
core  

A synonymic catalog of the Neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea) [PDF]

open access: yes, 2002
A synonymyc catalogue for the species of Neotropical Crabronidae and Sphecidae is presented, including all synonyms, geographical distribution and pertinent references. The catalogue includes 152 genera and 1834 species (1640 spp. in Crabronidae, 194 spp.
Amarante, Sérvio Túlio P.   +1 more
core   +2 more sources

Cerceris albofasciata

open access: yes, 2018
Published as part of Dollfuss, Hermann, 2018, The Sphecid Wasps of the genus Cerceris LATREILLE, 1802 of the " Biologiezentrum Linz " - Collection in Linz, Austria, from the Palearctic Region (part I). (Hymenoptera, Apoidea, Crabronidae), pp.
openaire   +1 more source

Nachtrag zu dem Verzeichnis der bei Wellingholthausen aufgefundenen Raubwespen [PDF]

open access: yes, 2013
Freilich ist Wellingholthausen durch eine reiche Flora und durch die verschiedensten Terrainverhältnisse in dieser Beziehung sehr begünstigt. Denn obgleich ich dem speziellen Sammeln der Grabwespen nur eine verhältnismäßig kurze Zeit widmete, konnte ich ...
Sickmann, Franz
core  

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