Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 6

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  HYMENOPTERA
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1

Chromosomes of ichneumon flies of the subfamily Pimplinae (Hymenoptera, Ichneumonidae)

100%
Gokhman V. E., Kolesnichenko K. A.
Folia Biologica
|
1997
|
vol. 45
139-141
EN
Chromosomes of ichneumonids of the subfamily Pimplinae, Dolichomitus terebrans (Ratzeburg) (2n = 34), Scambus nigricans (Thomson) (2n = 28), Pimpla turionellae (Linnaeus) (2n = 30) and Perithous scurra (Panzer) (= mediator (Fabricius)) (2n = 42) were studied for the first time. Chromosome numbers of the examined species of Pimplinae are comparatively high (2n = 28 or more, with the single exception of 2n= 18), and that of P. scurra is the highest in all parasitic wasps.
2

Distribution of accessory nuclei in the oocytes of the sawfly, Athalia rosae (Hymenoptera: Tenthredinidae)

100%
Zawadzka M.
Folia Biologica
|
1996
|
vol. 44
61-66
EN
In the oocytes of Athalia rosae accessory nuclei (AN) arise in late previtellogenesis. Three categories of AN: large (LAN), medium (MAN), and small (SAN) can be distinguished. Distribution of AN along the anteroposterior and dorsoventral axes of the oocyte is uneven. In the previtellogenic and vitellogenic oocytes dorsoventral polarity is marked by an abundance of AN in the ventral ooplasm. Distribution of AN along anteroposterior axis depends on the stage of oogenesis. In this paper the possible mechanism responsible for the uneven distribution of AN is proposed and discussed.
3

Karyotypic diversity in the subfamily Eurytominae (Hymenoptera: Eurytomidae)

88%
Gokhman V. E., Mikhailenko A. P.
Folia Biologica
|
2008
|
vol. 56
|
issue 3-4
209-212
EN
New data on the karyotype structure of five species of the subfamily Eurytominae are escribed, including the following species: Eurytoma rosae (2n=20), E. robusta (n=7, 2n=14), E. serratulae (n=6, 2n=12), E. compressa (2n=10) and Sycophila biguttata (2n=18). 2n=10, 12 and 14 are reported for the first time for the Eurytominae, in which only 2n=20 and 18 have been previously found. The taxonomic and phylogenetic implications of the new chromo- somal information are discussed. Karyotypes containing ten subtelo/acrocentric chromosomes which gradually decrease in size can be considered as initial for the Eurytominae. Eurytoma robusta + (E. serratulae + E. compressa) form a particular clade where all branches are well-supported by morphological, biological and chromosomal a
4

Acomparative study on the biology of Macropis fulvipes (Fabricius, 1804) and M. europaea Warncke, 1973 (Hymenoptera: Apoidea: Melittidae

88%
Celary W.
Folia Biologica
|
2004
|
vol. 52
|
issue 1-2
81-85
EN
Seasonal and daily activity of Macropis fulvipes (Fabricius, 1804) and M. europaea Warncke, 1973 are given. Their environmental preferences, foraging distances and host plants are presented. Life cycles and nest architecture are described.
5

An interesting case of gynandromorphism in Andrena helvola (Linnaeus, 1758) (Hymenoptera: Apoidea: Andrenidae)

88%
Celary W., Wisniowski B.
Folia Biologica
|
2001
|
vol. 49
|
issue 3-4
291-293
EN
A gynandromorphic specimen of Andrena helvola (Linnaeus, 1758) having secondary sexual characters on the head is described.
6

The ground-nesting solitary bee, Dasypoda thoracica BAER, 1853 (Hymenoptera: Apoidea: Melittidae) and its life history

75%
Celary W.
Folia Biologica
|
2002
|
vol. 50
|
issue 3-4
191-198
EN
Diagnosis and redescription of Dasypoda thoracica BAER, 1853 are given. Its seasonal and daily activity, host plants, and foraging distance are presented. Nest architecture and mature larva, male activity, and mating behaviour are described. Distribution and Polish localities are illustrated.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.