473 Works

ANTIMICROBIAL ACTIVITY OF SECRETORY MATERIALS OF SOME SCALE INSECTS:Poster

F.A. Mahmoud
The antimicrobial activity of the secretory materials associated with the test or wax covers of five scale insects was tested for Gram-positive and Gram-negative bacteria. The scale insects studied were the margarodid Icerya aegyptiaca (Douglas), the soft wax scale Ceroplastes rusci (Linnaeus) and three hard scales: Aonidiella aurantii (Maskell), Lepidosaphes beckii Nerwman and Parlatoria zyziphi (Lucas). The Gram-positive bacteria found included Staphylococcus aureus and Streptococcus agalactia, while the Gram-negative bacteria included Escherichia coli, Pseudomonas aeruginosa...

BIOLOGY AND HOST-INTERACTIONS OF NATURAL ENEMIES: Posters and Abstracts: FACTORS RESPONSIBLE FOR THE EXTINCTION OF CHRYSOMPHALUS AONIDUM (L.) FROM CITRUS ORCHARDS IN EGYPT

A.H. Amin, Madiha Risk & H.E.A. Sakr
Ecological studies have shown that the black armoured scale, Chrysomphalus aonidum (L.), has four overlapping annual generations on navel orange trees under the conditions in Qalyubyia Governorate, Egypt. Five species of natural enemies were recorded on C. aonidum during the present work. The ectoparasitoid, Aphytis holoxanthus DeBach, was recorded for the first time from Egypt, and the other bioagents were three endoparasitoids: Aspidiotiphagus citrinus Craw., A. lounsburyi Berl. & Paoli and Habrolepis pascuorum Mercet and...

MORFOLOGIA, ANATOMIA E ORGANIZZAZIONE FUNZIONALE DEL CAPO DELLA LARVA MATURA DI PHAENOBREMIA APHIDIMYZA (RONDANI)

Mario Solinas
Sono riportati i risultati di uno studio morfo-anatomico sul capo della larva di un Dittero Cecidomiide: la Phaenobremia aphidimyza (Rond.). Sono trattate la morfologia e l'anatomia delle strutture esoscheletrice ed endoscheletriche, del sistema muscolare e di quello nervoso, nonchè l'organizzazione funzionale del capo stesso ed il meccanismo di azione degli organi di presa e di ingestione del cibo. La morfologia della capsula cranica mette in evidenza uno sviluppo dei territori labrale, clipeale, frontale e parientali...

Mouthparts of a tydeid mite: an ultrastructural and functional investigation

Giorgio Nuzzaci & Antonella Di Palma
The gnathosoma of a tydeid mite (Tydeus sp.) shows the subcapitulum and the cheliceral segments not fused to each other though closely appressed. The lateral lips are provided with a well defined system of grooves and rims for interlocking. The pre-oral groove has very electron- dense walls; it is tightly shaped and covered dorsally by the labrum only distally. More proximally it becomes a channel (food channel), dorsally sealed. The labrum is an unpaired structure...

Induced responses of Bougainvillea glabra Choisy (Nyctaginaceae) against Phenacoccus peruvianus Granara de Willink (Hemiptera: Pseudococcidae) attack: preliminary results

C. Abbate, S. Toscano, R. Arcidiacono, D. Romano, A. Russo & G. Mazzeo
Plants are frequently attacked by herbivores and therefore have acquired constitutive and induced defenses during the course of their evolution. Primary and secondary metabolites have been implicated in plant defense against insect pests. Oxidative stress, resulting from the generation of reactive oxygen species (ROS), such as superoxide, hydrogen peroxide andhydroxyl radicals, is a common phenomenon in many plant defense against insect attack. Catalase, which degrades H2O2 into water and oxygen, is one of the major...

NOTA SU AFIDIINI (HYM. ICHNEUMONOIDEA) RACCOLTI IN PUGLIA

Domenico Roberti
É fornito un elenco di 16 specie di Aphidiidae (Hym. - Ichneumonoidea) ottenute da afidi raccolti nel 1967 e nel 1968 in Puglia. Sono indicati nuovi ospiti per alcune specie di parassiti e sono riportate varie specie di Aphidiidae, parassite di afidi dannosi, ottenute da afidi convittime viventi su piante spontanee. A list of 16 species of Aphidiidae (Hym. - Ichneumonoidea) is given, which have been obtained from Aphids found in 1967 and 1968 in...

Morfologia preimmaginale in Cypha imitator (Luze) (Coleoptera Staphylinidae Aleocharinae)

Luigi De Marzo
PREIMAGINAL MORPHOLOGY OF CYPHA IMITATOR (LUZE) (COLEOPTERA STAPHYLINIDAE ALEOCHARINAE) Larvae of Cypha imitator were obtained by selecting plant debris in a garden in South Italy. Some of them were hold in laboratory conditions and pupated in a silky cocoon. Diagnoses of the larvae (instars I-III) and pupa are given, together with some structural details of the VIII abdominal segment gland. Larvae of Cypha imitator do agree with the generalized aleocharine type (according to NEWTON, 1990),...

Un nuovo genere ed una nuova specie di Eriofide, Bariella farnei (Acari: Eriophyoidea), su Quercus trojana Webb in Puglia

Enrico De Lillo
A NEW GENUS ANO A NEW SPECIES OF ERIOPHYID MITES, Barie/la farnei (ACARI: ERIOPHYOIDEA), ON Quercus trojana WEBB IN APULIA (SOUTHERN ITALY). The author describes a new genus and a new species of Family Eriophyidae, Subfamily Phyl- locoptinae, from Quercus trojana Webb: Barie/la farne i n.sp. Barie/la n. gen. Viene descritto un nuovo genere ed una nuova specie, Barie/la Jarnei n. sp., appartenente alla Famiglia Eriophyidae ed alla Sottofamiglia Phyllocoptinae. Questa specie è stata raccolta...

THE ASTEROLECANIIDAE (HEMIPTERA: COCCOIDEA) OF SOUTH AFRICA

J.H. Giliomee
THE ASTEROLECANIIDAE (HOMOPTERA: COCCOIDEA) OF SOUTH AFRICA The 16 species of Asterolecaniidae known from South Africa can be tentatively placed in six genera based on the characters of the adult female. Some species do not fit into these genera as presently defined, requiring a redefinition of some genera or the creation of new ones. However, it appears that the characters on which the genera of the Asterolecaniidae are presently based are too few in number...

Biologia di Xylocopa (Xylocopa) violacea (L., 1758): specie di fiori visitate dalla femmina (Hymenoptera: Apidae)

Salvatore Vicidomini
BIOLOGY OF XYLOCOPA (XYLOCOPA) VIOLACEA (L., 1758): FEMALE FEEDING FLOWERS (HYMENOPTERA: APIDAE) Forty-two species and varieties of flowers on which X. violacea usually forage were identified. The nectar and pollen of 10 of them are used for pollen past preparation (larval food). In February females come out of their winter shelters between 10:30 and 13:30 at T > 13°C; in March, instead, between 9:00 and 14:00, at T > 17°C. In April-July they emerge from...

ANTIMICROBIAL ACTIVITY OF SECRETORY MATERIALS OF SOME SCALE INSECTS. BIOLOGY AND HOST-INTERACTIONS OF NATURAL ENEMIES: Posters and Abstracts:

F.A. Mahmoud, M.K. Hamdy & A.G. Hegazi
The antimicrobial activity of the secretory materials associated with the test or wax covers of five scale insects was tested for Gram-positive and Gram-negative bacteria. The scale insects studied were the margarodid Icerya aegyptiaca (Douglas), the soft wax scale Ceroplastes rusci (Linnaeus) and three hard scales: Aonidiella aurantii (Maskell), Lepidosaphes beckiiNerwman and Parlatoria zyziphi (Lucas). The Gram-positive bacteria found included Staphylococcus aureus and Streptococcus agalactia , while the Gram-negative bacteria included Escherichia coli, Pseudomonas aeruginosa...

DESCRIZIONE DI UNA NUOVA SPECIE DI MACROSIPHONIELLA DEL GUERCIO (HOM. APHIDIDAE)

Sebastiano Barbagallo
Nella presente nota viene descritta una nuova specie di Macrosiphoniella Del Guercio trovata in Sicilia nel corso della ricerca e determinazione di alcune specie congeneri. Desidero rinnovare un sentito ringraziamento al Dr. D. HILLE RIS. LAMBERS, al quale ho inviato in esame qualche esemplare dell'afide e che molto gentilmente mi ha fornito ampi ragguagli, di ordine tassonomico, sull'entità in oggetto. Al mio Direttore, Prof. VINCENZO LUPO, che mi assiste nello svolgimento di ogni lavoro, vadano...

STUDI SUI COLEOTTERI CURCULIONIDI IV. APION (EUTRICHAPION) CROCEIFEMORATUM KIESENWETTER APION (EUTRICHAPION) FLAVOFEMORATUM HERBST

Raffaele Monaco
Dell'Apion croceifemoratum Kiesw. e dell'Apion flavofemoratum Herb. (Coleoptera, Curculionidae) vengono forniti con illustrazioni cenni di morfologia degli adulti e delle larve mature. I costumi e la biologia di queste due specie, finora conosciute in modo molto frammentario, vengono rese note nelle loro linee principali, con l'aggiunta di nuovi reperti. La prima specie è stata studiata a Modugno (Bari) in Puglia, mentre le osservazioni relative alla seconda specie sono state condotte ad Ariano Irpino (Avellino) in...

LA PHORACANTHA SEMIPUNCTATA FABR. (COLEOPTERA: CERAMBYCIDAE) NELL'ITALIA MERIDIONALE

Paolo Parenzan
THE Phoracantha semipunctata FABR. (Coleoptera: Cerambycidae) IN SOUTHERN ITALY The presence of Phoracantha semipunctata Fabr. (Coleoptera, Cerambycidae), a borer pest of Eucalyptus, has been reported on the outskirts of Taranto, in Puglia. It is the third report in Europe, after those in Sardinia and Sicily, and the first for the ltalian paeninsula. The biology of the insect is resumed and its geonemy is described. Owing to the dangerfulness of the Coleopter and its quick acclimatation,...

MORPHOLOGICAL VARIATION IN ADULT FEMALE COCCUS HESPERIDUM L. (HEMIPTERA: COCCOIDEA: COCCIDAE) IN POLAND

B. Lagowaka
MORPHOLOGICAL VARIATION IN ADULT FEMALE COCCUS HESPERIDUM L. (HEMIPTERA: COCCOIDEA: COCCIDAE) IN POLAND This paper compares the variation of ten morphological characters of adult female C. hesperidum L. collected off (i) five different host plants and (ii) the stems, petioles and both leaf surfaces of Citrus, all from glasshouses in Poland. Four measured and six meristic characters were selected for biometric study. The mean and range of each of these characters varied between host plant...

POPULATION DYNAMICS AND BIOCONTROL OF THE JAPANESE SCALE, LOPHOLEUCASPIS JAPONICA (COCKERELL) IN GEORGIA

E.S. Tabatadze & V.A. Yasnosh
POPULATION DYNAMICS AND BIOCONTROL OF THE JAPANESE SCALE, LOPHOLEUCASPIS JAPONICA (COCKERELL) IN GEORGIA. The Japanese scale, Lopholeucaspis japonica (Cockerell) was discovered in Georgia in the Batumi Botanical Garden in 1931, where it was probably introduced from Japan. During the 1950’s, it was widespread and became a major pest of citrus, other fruits, tea, tung and ornamental plants. Japanese scale differs greatly from many other diaspidid species because it is pupiparial, the adult female being enclosed...

L'acarocecidio indotto da Aceria caulobius (Nalepa) n. comb. (Acari: Eriophyoidea) su Suaeda fruticosa Forsk:, serbatoio naturale del predatore Typhlodromus exhilaratus Ragusa (Acari: Phytoseiidae)

Enrico De Lillo
GALL. INDUCED BY Acena caulobius (NALEPA) N. COMB. (ACARI: ERIOPHYOIDEA) ON Suaeda fruticosa FORSK. , NATURAL RESERVE OF THE PREDACEOUS MITE Typhlodromus exhilaratus RAGUSA (ACARI:PHYTOSEIIDAE). The predaceous mite Typhlodromus exhilaratus Ragusa (Acari: Phytoseiidae) has been found on spontaneous Suaedafruticosa Forsk. infested with gall-making Aceria caulobius (Nalepa) n. comb. (Acari: Eriophyoidea). Morphological characters of A . caulobius are pointed out and illustrateci by scanning electron micrographs . The predator, active ali year round, has been observed...

Aspetti morfologici della spermateca in Diestota guadalupensis Pace e altre Aleocharinae (Coleoptera Staphylinidae)

Luigi De Marzo
MORPHOLOGICAL FEATURES OF THE SPERMATHECA OBSERVED IN DIESTOTA GUADALUPENSIS PACE AND OTHER ALEOCHARINAE (COLEOPTERA STAPHYLINIDAE) A preliminary analyse has been carried out on fresh specimens (18 species) and then discussed by considering several data from the literature. Receptacle of Aleocharinae exhibits several adaptive features, as it can be: (a) enlarged at apex or otherwise shaped to support the compressor muscle; (b) provided with sclerites and internal crests, which seemingly improve its elastic properties; (c) provided...

PROVE DI LOTTA INTEGRATA CONTRO L'AONIDIELLA AURANTII MASK. ED ALTRE COCCINIGLIE DEGLI AGRUMI IN SICILIA

Sebastiano Inserra
L'A. riferisce su osservazioni e prove di lotta svolte durante il 1967-1968 in Sicilia (Furci Siculo prov. Messina) per saggiare l'azione di metilparathion e parathion da soli o metilparathion, parathion e rogor uniti a olio minerale bianco nell'ambito di un piano di lotta integrata contro l'Aonidiella aurantii Mask., il Mytilococcus Beckii New., la Parlatoria pergandii Comst. e la Saissetia oleae Bern. associati sulle medesime piante. Dall'insieme dei risultati conseguiti è stato possibile accertare che effettuando...

SMICRONYX MENOZZII SOLARI COLEOTTERO CURCULIONIDE CECIDOGENO SU CUSCUTA

Franco Frilli
L'A. ha studiato la morfologia dello Smicronyx menozzii Solari (Col. Curcu- lionidae Calandrinae) effettuando anche alcune osservazioni biologiche. L'A. descrive le antenne dell'adulto, l'addome della femmina, l'organo copulatore del maschio, l'uovo, la larva matura e la pupa. Riguardo la chetotassi della larva, l'A. rileva che questa presenta caratteri che pongono in discussione la classificazione !arvale delle sottofamiglie dei Curculionidi. Lo S. menozzii, vivente a spese di Cuscuta australis, produce sui fusti del vegetale fori di...

Structure of the "preoral comb" in larvae of European Agabini (Coleoptera, Dytiscidae)

Luigi De Marzo
Data are presented on intra- and interspecific variations of the preoral comb of larvae of European Agabini, along with data on its distribution within the subf. Colymbetinae. Evolutionary and taxonomic remarks are also given. STRUTTURA DEL "PETTINE PREORALE" NELLE LARVE DEGLI AGABINI EUROPEI (COLEOPT. - DYTISCIDAE) Viene analizzata la variabilità strutturale (intra e interspecifica e intergenerica) del pettine preorale delle larve degli Agabini, con particolare attenzione alle differenze fra larve mature, che vengono esaminate in...

A NEW MORPHOLOGICAL STRUCTURE ON KERMES VERMILIO (PLANCHON) (HEMIPTERA: COCCOIDEA: KERMESIDAE)

Salvatore Marotta & Antonio Tranfaglia
A NEW MORPHOLOGICAL STRUCTURE ON KERMES VERMILIO (PLANCHON) (HEMIPTERA: COCCOIDEA: KERMESIDAE). Kermes vermilio (Planchon) is a common scale insect living on Quercus ilex L. in urban environments in Southern Italy. Morphological studies on the nymphs and prepupae showed the presence of a pair of membranous ventral frontal lobes, situated just antero-medially to each basal antennal segment. Similar lobes are only currently known in the family Eriococcidae. These structures are therefore here recorded in the Kermesidae...

Nuove segnalazioni di Geometridae (Lepidoptera) per l'Italia Meridionale

Paolo Parezan
NEW RECORDS OF GEOMETRIDAE (LEPIDOPTERA) FROM SOUTHERN ITALY Fourteen species of Geometrides of great faunal and zoogeographic interest found in southern Italy are reported: Boarmia viertlii Boh. are new to the fauna of ltaly; Orthostixis cribraria Hb., Jdaea albitorquata Pglr., Crocallis boisduvalaria Lucas, were reported only in Sicily, are new to the continental Italy. The zone of the occurrence of Colostygia multistrigaria Hw., Eupithecia cocciferata Mill. and Chloroclystis debiliata Hb. (previously cited only as the...

TRIALS FOR THE CONTROL OF THE CITRUS MEALYBUG IN CITRUS ORCHARDS BY AUGMENTATIVE RELEASE OF TWO ENCYRTID PARASITOIDS

Z. Mendel, S. Gross, S. Steinberg & D. Blumberg
TRIALS FOR THE CONTROL OF THE CITRUS MEALYBUG IN CITRUS ORCHARDS BY AUGMENTATIVE RELEASE OF TWO ENCYRTID PARASITOIDS. Since the 1980s, the citrus mealybug Planococcus citri (Risso) has become a key pest in Israel, owing to intensive planting of highly susceptible varieties, the introduction of Insect Growth Regulators (which adversely affect coccinellids) and the development of resistance to chlorpyrifos. Management of the mealybug populations in citrus orchards by augmentative releases of parasitoids was investigated between...

SULLA SINONIMIA DI COLEOPHORA ORIOLELLA ZLL. E COLEOPHORA MONGETELLA CHRÉT. (LEPIDOPTERA, COLEOPHORIDAE)

Eberhard Jaeckh & Giorgio Baldizzone
Das Ergebnis beruht auf Untersuchungen von Faltern, nach denen ZELLER die Coleo- phora oriolella und CHRÉTIEN die Coleophora mongetella beschrieben hatten. Auch altere Stiicke dieser Arten aus Museum-Sammlungen und viele eigene Fange aus dem Siidalpen- raum wurden verglichen und untersucht. Wahrend ZELLER, wahrscheinlich durch eine Verwechslung von ]. MANN ein falsches Substrat fiir die Raupe und dadurch auch einen falschen Raupensack angab, was bis in neueste Zeit immer wieder abgeschrieben wurde, ziichtete CHRÉTIEN diese Art...

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  • 2016
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