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Articles 1021 - 1050 of 1317
Full-Text Articles in Entomology
Zwei Neue Bienen Aus Japan. (Hym.), J. D. Alfken
Zwei Neue Bienen Aus Japan. (Hym.), J. D. Alfken
A
Kopf so breit wie der Thornx. Oberkiefer vierzahuig; mit ziemlich scharfem Langskiele; am Grunde dicht und fein punktiert, dazwischen fein gerieft; nach inuen und nach der Spitze zu mit vereinzelten groberen Punkten, Kielen und Furchen versehen, die Rander mit vereinzelten ungleich Iangen Haaren besetzt. Wangenanhang mit schwacher Beule. Clypeus zerstreut und ziemlich groh, seitlich dichter punktiert, in der Mitte mit erhabenem, glanzendem Langskiele, der Vorderrand auf seiuer ganzen Lange schwach ausgerandet und ein wenig crenuliert. Stirn, Scheitel und Wangen dichter und gleichmassiger punktiert.
Introduction: Narrative And Route Of The Expedition, John Stanley Gardiner
Introduction: Narrative And Route Of The Expedition, John Stanley Gardiner
Bu
No abstract provided.
Hymenopteres Nouveax Du Congo, R. Buysson
Hymenopteres Nouveax Du Congo, R. Buysson
Bu
M. E. Haug a donne, en 1901, au laboratoire d'Entomologie un certain nombre d'Hymenopteres recoltes par lui dans le Congo francais, dans le has Ogooue , pays compris entre Lambarene et le littoral de la mer. Parmi ces insectes, il se trouve trois especes nouvelles dont voici les descriptions.
Hymenoptera, Peter Cameron
On The Hymenoptera Collected By Mr. W. L. Distant In The Transvaal, South Africa, With Descriptions Of Supposed New Species., C. T. Bingham
On The Hymenoptera Collected By Mr. W. L. Distant In The Transvaal, South Africa, With Descriptions Of Supposed New Species., C. T. Bingham
Ba
No abstract provided.
Monographie Des Guepes Ou Vespa, R. Buysson
Monographie Des Guepes Ou Vespa, R. Buysson
Bu
Les Hymenopteres don’t il est question dans cette etude appartiennent au genre Vespa, lequel fait partie de la famille des Vespides. Ceux-ci terminent un des rameaux de l’arbre philogenetique des Hymenopteres, don’t le tronc est forme par ces insectes don’t les larves purvoient ells-memes a leur nourriture et vivent de matieres vegetales. Au fur et a mesure que l’on s’eleve de la souche aux rameaux, on reconnait que l’instinct s’est modifie avec la maniere de vivre.
On Some New Genera And Species Of Hymenoptera (Ichneumonidae, Chrysididae, Fossores, And Apidae), Peter Cameron
On Some New Genera And Species Of Hymenoptera (Ichneumonidae, Chrysididae, Fossores, And Apidae), Peter Cameron
Bu
No abstract provided.
Xx. - On Some New Genera And Species Of Parasitic And Fossorial Hymenoptera From The Khasia Hills, Assam., Peter Cameron
Xx. - On Some New Genera And Species Of Parasitic And Fossorial Hymenoptera From The Khasia Hills, Assam., Peter Cameron
Bu
No abstract provided.
Descriptions Of New Genera And Species Of Hymenoptera Taken By Mr. Robert Shelford At Sarawak, Borneo, Peter Cameron
Descriptions Of New Genera And Species Of Hymenoptera Taken By Mr. Robert Shelford At Sarawak, Borneo, Peter Cameron
Bu
No abstract provided.
Svensk Insektfauna Trettonde Steklar, C. Aurivillius
Svensk Insektfauna Trettonde Steklar, C. Aurivillius
An
Steklarne anses med skäl såsom de högst stående bland in-sekterna. De utmärka sig genom följande kännetecken: Hufvudet mycket rörligt med munöppningen vänd nedåt. Öfverkäkarne kraftigt utbildade, bitande; underkäkarne bilda tillsammans med underläppen en sug- eller slickapparat. Första mellankroppsleden är i allmänhet liten och ofvan oftast orörligt sammanväxt med andra leden, dess sido- och bröstplåtar äro alltid genom en !edgång rörligt förenade med ryggplåten {halsskölden), hvarigenom frambenen blifva mycket rörliga. Vingarne, som sällan saknas, äro fyra, tunna, nakna, hinnaktiga och endast försedda med ett ringa antal slutna vingfält; de bakre kortare och smalare än de främre. Förvandlingen är fullständig. Larverna hafva …
The Bees Of The Genus Nomada Found In Colorado, With A Table To Separate All The Species Of The Rocky Mountains, T. D. A. Cockerell
The Bees Of The Genus Nomada Found In Colorado, With A Table To Separate All The Species Of The Rocky Mountains, T. D. A. Cockerell
Ca
No abstract provided.
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.11, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.11, William H. Ashmead
An
The wasps belonging to this family, on account of the emarginate eyes in the females, and the abdomen being usually marked with yellow or white, closely resemble those in the families Mysinidae and Scoliidae, but may be easily distinguished by the great difference in the legs, the middle coxae being approximate, the outer face of the tibiae being smooth, unarmed, without tubercles or spines, while the tarsi are without strong spines or bristles, and unfitted for digging.
A New Paranomia From British Columbia, William H. Ashmead
A New Paranomia From British Columbia, William H. Ashmead
An
Length 10.5 mm. Black; abdominal segments 1-4 at apex with bands of a golden-yellowish be pubescence; the head in front, the cheeks, the occiput, the thorax in front at the sides, the postscutellum, the legs, and the abdomen beneath, alI clothed with a pale or whitish pubescence. Wings hyaline, fuliginous at apex, the costae and parastigma black, the stigmal and internal veins testaceous. Legs mostly black, with tarsal joints 2-5 mostly yellowish. The head is rather finely, sparsely punctate, the thorax more closely and densely punctate, but with the punctures finer on the scutellum, while the metathorax is shagreened, opaque. …
Notes On The Bee-Genus Halictus, T. D. A. Cockerell
Sleeping Habits Of Certain Hymenoptera, Nathan Banks
Sleeping Habits Of Certain Hymenoptera, Nathan Banks
An
The various means by which insects rest have been but little investigated. Occasional notes have been published, but often in connection with other matter, so that it is extremely difficult to collate the recorded facts. Since the Hymenoptera are among the most assiduous, as well as the most intelligent workers, it is natural that they should exhibit some interesting habits of sleep. The idea that the bee sleeps in the flower seems to have invaded literature at an early date. And there are a number of bees that commonly do remain in flowers (such as those of cucurbits and campanulas) …
Colletes Crucis, T. D. A. Cockerell
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.10, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.10, William H. Ashmead
An
The globose or rounded head, which is never flat, oblong, and the difference in the antennae, the antennae in males being 10-jointed, in the females 13-jointed, readily separate the subfamily from the Bethylinre. The group comes quite close to the Dryininae, but in the latter the head is transverse or subquadrate, never rounded, while the antennae are 10-jointed in both sexes.
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.9, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.9, William H. Ashmead
An
This family was first defined by that astute British systematist, A. H. Haliday, who, as early as 1839, very correctly placed the family among the Fossores.
A New Bee Of The Genus Bombomelecta, T. D. A. Cockerell
Notes And Descriptions Of Bees, J. C. Crawford Jr.
Notes And Descriptions Of Bees, J. C. Crawford Jr.
Co
The specimens on which this paper is based are in the collection of the University of Nebraska, unless otherwise stated. Especial acknowledgments are due to Prof. Cockerell for specimens and suggestions, to Prof. Titus for specimens, and to Prof. Bruner for overseeing my work.
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.8, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.8, William H. Ashmead
An
Prof. Westwood and others confused these wasps with the Vespidae and the Eumenidae, although Latreille had years previously established his family Masarides. Henry de Saussure, in his "Etudes," treats them as a tribe. They, however, represent a distinct family close to the Eurnenidae, but easily separated from them and the Vespidae by the wings not being folded longitudinally, by peculiarities of the antennae, which are usually strongly clavate at tip; by the wholly different abdomen, the venter being flatter; and by the much larger scutellum.
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.7, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.7, William H. Ashmead
An
To this family belong the potter wasps. They differ from the paper-making wasps in being solitary and in constructing their nests of mud or clay, instead of macerated woody fibre or pulp. It is perhaps one of the largest, if not the largest, families in the Vespoidea, and is well represented in all parts of the world by many genera and species.
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.6, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.6, William H. Ashmead
An
This family is restricted to the paper-making wasps, all social species living in large communities and having three distinct sexes, female, worker, and male, thus agreeing with the social bees, the Apidea and Bombidae, and with many ants, Dorylidae, Myrmicidae, Formicidae, etc.
The Genus Lithurgopsis, T. D. A. Cockerell
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.5, William H. Ashmead
Classification Of The Fossorial, Predateous And Parasitic Wasps, Or The Superfamily Vespoidea No.5, William H. Ashmead
An
This subfamily comes nearest to the Aporinae, and a few of the males are easily confused with and mistaken for some males in the latter group.
Papers From The Harriman Alaska Expedition, William Harris Ashmead
Papers From The Harriman Alaska Expedition, William Harris Ashmead
An
In this paper 335 species are recorded, of which number 201 are regarded as new to science and are here first described. Of the 10 superfamilies, into which the order is now divided, all are represented in Alaska and are distributed into 29 families and 183 genera. Two of these genera, Dallatorrea and Hyposyntactus are new, and of the remainder, thirty have not been previously reported from North America.
New Bees Of The Genus Andrena, From Wisconsin, T. D. A. Cockerell
New Bees Of The Genus Andrena, From Wisconsin, T. D. A. Cockerell
Ca
No abstract provided.
Zur Kenntnis Der Prosopis Annularis K. (= Dilatata K.)- Gruppe. (Hym.), J. D. Alfken
Zur Kenntnis Der Prosopis Annularis K. (= Dilatata K.)- Gruppe. (Hym.), J. D. Alfken
A
Infolge der Bearbeitung der reichhaltigen Bieneusammlung meines verehrten Kollegen Th. Meyer in Hamburg habe ich eine genane Untersuchung der mir bekannten Arten du groupe si confus de Prosopis dilatala K.", wie J. Vachal sehr richtig sagt, vorgenommen: dadurch habe ich die Uebenengung gewonnen, dass im nordwestlichen Deutschland 2 sehr nahe verwandte Arten ans der genannten Gruppe vorkommen, welche ich irrtumlich bisher beide als P. dilatata K. bezeichuete. Nur die eine Art ist die echte P. dilatata K. = annularis K., die andere ist die P. compar Forst. Forster beschrieb von der letzteren nur das nach einem Exemplare, welches von Kellner …
The Bee Genus Dialictus, J. C. Crawford Jr.
The Bee Genus Dialictus, J. C. Crawford Jr.
Co
This differs from the true anomalus in its larger size, more densely punctured mesothorax, finer and more numerous lines on the metathorax, dark tegulae, abdomen distinctly punctured, quite closely on the second segment; dense r pubescence on the abdomen nearly concealing the surface on the apical segments; apical margins of abdominal segments testaceous.
On The Hymenoptera Collected By Mr. Robert Shelford At Sarawak, And On The Hymenoptera Of The Sarawak Museum, Peter Cameron
On The Hymenoptera Collected By Mr. Robert Shelford At Sarawak, And On The Hymenoptera Of The Sarawak Museum, Peter Cameron
Bu
No abstract provided.