1,721,525 research outputs found
Aspidiotus bornmuelleri Lindinger, 1911, rev. comb. (Hemiptera: Coccomorpha: Diaspididae), a neglected endemic species from Macaronesia, with comments on the genus Cryptophyllaspis, and further notes on the scale insect fauna of Canary Islands, Spain
No full textPellizzari, Giuseppina, Porcelli, Francesco (2017): Aspidiotus bornmuelleri Lindinger, 1911, rev. comb. (Hemiptera: Coccomorpha: Diaspididae), a neglected endemic species from Macaronesia, with comments on the genus Cryptophyllaspis, and further notes on the scale insect fauna of Canary Islands, Spain. Zootaxa 4300 (1): 99-110, DOI: https://doi.org/10.11646/zootaxa.4300.1.
Morfologia degli stadi larvali di Habronyx heros Wesmael (Ichneumonidae - Anomaloninae) con note di biologia
Full text linkThe author describes the larva! features of Habronyx heros Wesmael (Hymenoptera, Ichneu- monidae, Anomaloninae). The five larva! instars were on, the first of which was caudate and the others worm-like. The morphologicals details of the head were studied: the first instar had strongly schlerotized mandibles and well shaped maxilae and an inferior labrum with sensilla; the second instar was ligthly schlerotized, while the third, fourth and fifth instars showed a pro- gressive thickening of the peristoma, the dorsal half of the head and the inferior labrum. The key for last instar larvae (from Gauld, 1976) was modified according to the hypostomal spur varia- bility ecountered.
The !ife cycle and the competition among larvae into the host was observed and outlined
Iron from the Sky. The meteoritic origin of Tutankhamun’s iron dagger
Full text linkSince Howard Carter’s discovery in 1925 1, the meteoritic origin of the iron dagger blade from the sarcophagus of the ancient Egyptian King Tutankhamun (14th Century BC), part of the King’s funerary collection now at the Egyptian Museum of Cairo, has been the subject of debate. In this presentation, we report on the work carried out by the author in collaboration with Comelli et al. (2016). It is shown that the composition of Tutankhamun’s iron dagger blade (Fe plus 10.8 wt% Ni and 0.58 wt% Co), accurately determined through portable x-ray fluorescence spectrometry, strongly supports its meteoritic origin. This study confirms that ancient Egyptians attributed great value to precious objects made by meteoritic iron. However, it is as yet unclear if such dagger blade made of meteoritic iron was manufactured in Egypt or imported from Anatolia
Studi recenti sugli organi di senso dei Diaspididae (Coccoidea)
No full textSENSE ORGANS IN DIASPIDIDAE, RECENT DATA AND PERSPECTIVES
This paper reports the recent acquisitions on the morphology of sensilla of Diaspididae and their functional interpretation. Mechanoreceptors and chemoreceptors are described and recognized on the basis of the presence, placement and number of wall pores; placement on the insect’s body and absolute size of sensilla is considered of interest indeed. The functional interpretation of these specialized sense organs is draft regarding to the peculiar life-style of the Diaspididae.
The morphology, function and importance as experimental system of the antennal sensillum in adult female Diaspis echinocacti (Bouché) is stressed. Possible use of the primitive or derivative status of the antennal seta morphology is proposed as a cue to study Diaspididae phylogenesis. Future researches will report about the nature of the so-called “knobbed seta”, still uncertain because of technical difficulties in TEM observation, and confirm the reduction as the major phylogenetic trend of Diaspididae female
On the term describing the post-embryonic development of Diaspididae female. (Sternorrhyncha Coccoidea)
No full textFirst record of Aleurocanthus spiniferus (Homoptera: Aleyrodidae) in Apulia, Southern Italy
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