Results 51 to 60 of about 230,869 (167)

Leptocybe invasa Fisher & La Salle, 2004 and Ophelimus maskelli Haliday, 1844 - two new records of gall forming Eulophidae from Malta (Hymenoptera, Chalcidoidea) [PDF]

open access: yes, 2012
The Eulophidae (Hymenoptera, Chalcidoidea) currently accommodates more than 4,000 described species worldwide in some 300 genera (noyES, 2003). In Europe, the family is represented by about 1,100 species (GAuld & Bolton, 1988).
Mifsud, David
core  

Aphidiinae (Hymenoptera, Braconidae) aphid parasitoids of Malta : review and key to species [PDF]

open access: yes, 2015
This paper brings an annotated list of the 16 aphid parasitoids detected up to 2015 in Malta. All the species were reared from identified aphid-plant associations. An illustrated key to the identification of the recorded species from Malta is provided.
Mifsud, David   +3 more
core   +1 more source

The evolution of queen control over worker reproduction in the social Hymenoptera [PDF]

open access: yesarXiv, 2017
A trademark of eusocial insect species is reproductive division of labor, in which workers forego their own reproduction while the queen produces almost all offspring. The presence of the queen is key for maintaining social harmony, but the specific role of the queen in the evolution of eusociality remains unclear.
arxiv  

Notes on the Nests of \u3ci\u3eAugochloropsis metallica fulgida\u3c/i\u3e and \u3ci\u3eMegachile mucida\u3c/i\u3e in Central Michigan (Hymenoptera: Halictidae, Megachilidae) [PDF]

open access: yes, 2017
Notes on the nesting biology of two ground-nesting species are provided from Central Michigan. A single nest of Augochloropsis metallica fulgida was excavated on 12 July 2014 in Shiawassee County. There were two female nest inhabitants.
Gibbs, Jason
core   +1 more source

Frequency and Viability of Diploid and Haploid Males Offsprings of Mated Females of Solitary Endoparasitoid (DIADROMUS Pulchellus) (Ichneumonidae) [PDF]

open access: yesComptes Rendus de l'Academie des Sciences. Serie 3, Sciences de la Vie 324 (2001) 149-158, 2006
Sex determination in the order Hymenoptera is based on arrhenotoky, hymenopteran males are usually haploid and females diploid. Males of the Ichneumonidae Diadromus pulchellus, solitary endoparasitoid of A. assectella pupae are normally haploid, but diploid males are present in a natural population and can be obtained in a experimental population.
arxiv  

Chemoreceptor Evolution in Hymenoptera and Its Implications for the Evolution of Eusociality

open access: yesGenome Biology and Evolution, 2015
Eusocial insects, mostly Hymenoptera, have evolved unique colonial lifestyles that rely on the perception of social context mainly through pheromones, and chemoreceptors are hypothesized to have played important adaptive roles in the evolution of ...
Xiaofan Zhou   +5 more
semanticscholar   +1 more source

Further contributions to the tritrophic plant-aphid-parasitoid associations in Malta with special reference to Aphis nerii (Hemiptera, Aphidoidea) as a prevalent refugium of Aphidiinae (Hymenoptera, Braconidae) [PDF]

open access: yes, 2013
Four species of aphid parasitoids, namely Aphidius colemani, Binodoxys angelicae, Lysiphlebus fabarum and Lysiphlebus testaceipes were reared from Aphis nerii on Nerium oleander and/or Stephanotis floribunda in Malta.
Mifsud, David, Stary, Petr, Zammit, Mark
core  

Patterns of positive selection in seven ant genomes [PDF]

open access: yesarXiv, 2013
The evolution of ants is marked by remarkable adaptations that allowed the development of very complex social systems. To identify how ant-specific adaptations are associated with patterns of molecular evolution, we searched for signs of positive selection on amino-acid changes in proteins.
arxiv  

Acute kidney injury due to multiple Hymenoptera stings—a clinicopathological study

open access: yesClinical Kidney Journal, 2017
Background Acute kidney injury (AKI) after multiple Hymenoptera stings is well known but still a rare phenomenon. Methods We conducted a retrospective study of the clinicopathological spectrum of AKI due to multiple Hymenoptera stings over 13 years (July
S. Vikrant, A. Parashar
semanticscholar   +1 more source

Identification of similarity amongst eucalyptus planted areas based on leaf-cutting ant nest sizes [PDF]

open access: yesarXiv, 2019
Techniques for leaf-cutting ant control have been investigated in literature due to the importance of the damage they cause to agriculture. The effectiveness of different forms of control is explored in researches aimed at identifying the balance between pest control efficiency and environmental damage caused by the treatments applied. Plantations with
arxiv  

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