Pub Date : 2013-07-12DOI: 10.1080/03749444.1985.10736696
S. Straneo
RIASSUNTO Una nuova specie di Pterostichini (Coleoptera Carabidae) di una grotta della Somalia centro-meridionale, Strigomerus troglophilus, e descritta e confrontata con le specie affini S. parvicollis Straneo, 1939 e S. pulcher Peringuey, 1926.
{"title":"SPELEOBIOLOGIA DELLA SOMALIA. NUOVA SPECIE DEL GENERE STRIGOMERUS CHAUDOIR, 1878 (COLEOPTERA CARABIDAE PTEROSTICHINI) DELLA GROTTA DI SHOWLI BERDI","authors":"S. Straneo","doi":"10.1080/03749444.1985.10736696","DOIUrl":"https://doi.org/10.1080/03749444.1985.10736696","url":null,"abstract":"RIASSUNTO Una nuova specie di Pterostichini (Coleoptera Carabidae) di una grotta della Somalia centro-meridionale, Strigomerus troglophilus, e descritta e confrontata con le specie affini S. parvicollis Straneo, 1939 e S. pulcher Peringuey, 1926.","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83204211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/00269786.1986.10736492
J. Strassmann, C. Hughes
SUMMARY Polistes wasps (Hymenoptera Vespidae) are protogynous in the south (30°N) and protandrous in the north (42°N) of America. Sexual selection is unlikely to account for protandry because females do not mate soon after emergence, and sometimes mate multiply. North-south differences in both emergence order and relatedness of workers to brood fit the hypothesis that protandry is the result of worker conflict with the queen over the sex ratio. Protandry allows the queen to determine the sex ratio. Protogyny could be the result of greater male than female mortality prior to mating. It could also be the result of a variable and unpredictable number of days for brood production, if females can become either workers or reproductives until late in their development. In this case protogyny would allow the decision to produce reproductives rather than workers to be delayed for a few more weeks. Texas populations of P. metricus Say, P. bellicosus Cresson, P. dorsalis (Fabr.) and P. exclamam Vierek all produce ma...
{"title":"LATITUDINAL VARIATION IN PROTANDRY AND PROTOGYNY IN POLISTINE WASPS","authors":"J. Strassmann, C. Hughes","doi":"10.1080/00269786.1986.10736492","DOIUrl":"https://doi.org/10.1080/00269786.1986.10736492","url":null,"abstract":"SUMMARY Polistes wasps (Hymenoptera Vespidae) are protogynous in the south (30°N) and protandrous in the north (42°N) of America. Sexual selection is unlikely to account for protandry because females do not mate soon after emergence, and sometimes mate multiply. North-south differences in both emergence order and relatedness of workers to brood fit the hypothesis that protandry is the result of worker conflict with the queen over the sex ratio. Protandry allows the queen to determine the sex ratio. Protogyny could be the result of greater male than female mortality prior to mating. It could also be the result of a variable and unpredictable number of days for brood production, if females can become either workers or reproductives until late in their development. In this case protogyny would allow the decision to produce reproductives rather than workers to be delayed for a few more weeks. Texas populations of P. metricus Say, P. bellicosus Cresson, P. dorsalis (Fabr.) and P. exclamam Vierek all produce ma...","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"25 1","pages":"87-100"},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85332434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/03749444.1981.10736612
M. Intini
RIASSUNTO Si segnala la presenza in Somalia di quattro funghi lignicoli: Phellinus robustus f. robiniae Bond., 1953, Pogonomyces hydnoides (Swartz ex Fries) Murrill, 1904 e Chaetoporus euporus (Karst.) Bond. & Sing., 1941 della famiglia Polyporaceae e Ganoderma petchii (Lloyd) Steyaert, 1972 della famiglia Ganodermataceae e ne vengono descritte le caratteristiche.
索马里有四种褐石林:菲利努斯·罗巴斯托·f·罗比尼埃·邦德。1953年，Pogonomyces hydnoides (Swartz ex Fries) Murrill, 1904和Chaetoporus euporus (Karst)。债券。&歌唱活动。(劳埃德)施泰耶特，1972年。
{"title":"SU ALCUNI FUNGHI LIGNICOLI POCO NOTI DELLA SOMALIA","authors":"M. Intini","doi":"10.1080/03749444.1981.10736612","DOIUrl":"https://doi.org/10.1080/03749444.1981.10736612","url":null,"abstract":"RIASSUNTO Si segnala la presenza in Somalia di quattro funghi lignicoli: Phellinus robustus f. robiniae Bond., 1953, Pogonomyces hydnoides (Swartz ex Fries) Murrill, 1904 e Chaetoporus euporus (Karst.) Bond. & Sing., 1941 della famiglia Polyporaceae e Ganoderma petchii (Lloyd) Steyaert, 1972 della famiglia Ganodermataceae e ne vengono descritte le caratteristiche.","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90749439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/00269786.1972.10736196
D. Palenzona, M. Mochi, R. Alicchio
SUMMARY The recombination frequency between three genes of the second chromosome of Drosophila melanogaster Meig. (black, cinnabar, vestigial) was estimated in two lines selected for short wing (C and CF) and in a cross between them (F1). The recombination rate in the selected lines was different from that in the Canton strain from which they were derived; moreover, the two selected lines differed between themselves, while the recombination rate in the F1 population was similar to that observed in the parental line C. These results suggest that the action of the factors which modify the recombination in the C line are «dominant» over those in the CF line. The results obtained have relevance in the study of population dynamics: it is argued that selection and recombination are part of an auto-regulating complex; it is also suggested that the «dominance» effect of the factors involved in recombination control may provide a «dynamic barrier» which causes the gene pools of the two populations to behave differ...
{"title":"RECOMBINATION RATE IN SELECTED LINES OF DROSOPHILA MELANOGASTER MEIG","authors":"D. Palenzona, M. Mochi, R. Alicchio","doi":"10.1080/00269786.1972.10736196","DOIUrl":"https://doi.org/10.1080/00269786.1972.10736196","url":null,"abstract":"SUMMARY The recombination frequency between three genes of the second chromosome of Drosophila melanogaster Meig. (black, cinnabar, vestigial) was estimated in two lines selected for short wing (C and CF) and in a cross between them (F1). The recombination rate in the selected lines was different from that in the Canton strain from which they were derived; moreover, the two selected lines differed between themselves, while the recombination rate in the F1 population was similar to that observed in the parental line C. These results suggest that the action of the factors which modify the recombination in the C line are «dominant» over those in the CF line. The results obtained have relevance in the study of population dynamics: it is argued that selection and recombination are part of an auto-regulating complex; it is also suggested that the «dominance» effect of the factors involved in recombination control may provide a «dynamic barrier» which causes the gene pools of the two populations to behave differ...","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"41 1","pages":"231-237"},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89850858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/00269786.1982.10736411
G. Bani, R. Cecchi
SUMMARY The finger-like gland of Vaginula borelliana (Colosi) (Gastropoda Pulmonata) was studied in serial sections obtained from both secretory tubules and draining pathways. There are two types of secretory tubules which differ chiefly in the staining properties of both the secretory cells and the secretion within the tubular lumina. Both tubules have in their walls two additional layers besides the secretory layer: one of smooth muscle cells and one of periluminal epithelial cells. The muscle layer, located upon the secretory cells, occupies an unusual position and probably aids in the rapid discharge of the secretion accumulated in the tubular lumen. The role of the periluminal epithelium, whose structure varies in different zones of the gland, may change according to its localization. A comparison between the histology of the finger-like gland of Vaginula and that of the multifid glands of Helix reported in the literature, reveals clear differences between these sex organs which are regarded as analo...
{"title":"STRUCTURE OF THE FINGER-LIKE GLAND OF VAGINULA BORELLIANA (COLOSI) (GASTROPODA PULMONATA)","authors":"G. Bani, R. Cecchi","doi":"10.1080/00269786.1982.10736411","DOIUrl":"https://doi.org/10.1080/00269786.1982.10736411","url":null,"abstract":"SUMMARY The finger-like gland of Vaginula borelliana (Colosi) (Gastropoda Pulmonata) was studied in serial sections obtained from both secretory tubules and draining pathways. There are two types of secretory tubules which differ chiefly in the staining properties of both the secretory cells and the secretion within the tubular lumina. Both tubules have in their walls two additional layers besides the secretory layer: one of smooth muscle cells and one of periluminal epithelial cells. The muscle layer, located upon the secretory cells, occupies an unusual position and probably aids in the rapid discharge of the secretion accumulated in the tubular lumen. The role of the periluminal epithelium, whose structure varies in different zones of the gland, may change according to its localization. A comparison between the histology of the finger-like gland of Vaginula and that of the multifid glands of Helix reported in the literature, reveals clear differences between these sex organs which are regarded as analo...","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"13 1","pages":"345-358"},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73494447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/03749444.1987.10736716
A. Soika
RIASSUNTO L'Autore descrive una nuova specie di Eumeninae, Leptochilus (Euleptochilus) somalicus (Hymenoptera Vespidae) raccolta nella Somalia centrale. Il sottogenere Euleptochilus Bliithgen, 1943 era finora rappresentato nella regione afrotropicale dal solo L. (E.) rubellulus (Kohl, 1907) endemico di Sokotra.
{"title":"LEPTOCHILUS (EULEPTOCHILUS) SOMALICUS N. SP. DELLA SOMALIA (HYMENOPTERA VESPIDAE EUMENINAE)","authors":"A. Soika","doi":"10.1080/03749444.1987.10736716","DOIUrl":"https://doi.org/10.1080/03749444.1987.10736716","url":null,"abstract":"RIASSUNTO L'Autore descrive una nuova specie di Eumeninae, Leptochilus (Euleptochilus) somalicus (Hymenoptera Vespidae) raccolta nella Somalia centrale. Il sottogenere Euleptochilus Bliithgen, 1943 era finora rappresentato nella regione afrotropicale dal solo L. (E.) rubellulus (Kohl, 1907) endemico di Sokotra.","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76703747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/03749444.1977.10736845
M. Largen
SUMMARY The present work recognises six species of the genus Leptopelis in Ethiopia, of which two, L. yaldeni n. sp. and L. susanae n. sp., are described for the first time. Pseudocassina ocellata Ahl, 1924 and P. rugosa Ahl, 1924 are synonyms of Leptopelis gramineus (Boulenger, 1898). Five of the six species are known only from Ethiopia; an unusually high proportion of endemics which is explained by the fact that four (L. gramineus, L. ragazzii, L. yaldeni and L. susanae) are montane forms having their lower limits of distribution at about 2000 m or above, and there is a marked tendency for different species to be associated with different massifs. The remaining endemic is L. vannutellii, a species of lowland forest in southwestern Ethiopia. Leptopelis bocagei (Gunther, 1864) appears to be a more widely distributed form, although the application of this name to Ethiopian specimens is provisional since their relationship with typical bocagei from further south remains to be clarified. Even within Ethiopia...
{"title":"THE STATUS OF THE GENUS LEPTOPELIS (AMPHIBIA ANURA HYPEROLIIDAE) IN ETHIOPIA, INCLUDING DESCRIPTIONS OF TWO NEW SPECIES","authors":"M. Largen","doi":"10.1080/03749444.1977.10736845","DOIUrl":"https://doi.org/10.1080/03749444.1977.10736845","url":null,"abstract":"SUMMARY The present work recognises six species of the genus Leptopelis in Ethiopia, of which two, L. yaldeni n. sp. and L. susanae n. sp., are described for the first time. Pseudocassina ocellata Ahl, 1924 and P. rugosa Ahl, 1924 are synonyms of Leptopelis gramineus (Boulenger, 1898). Five of the six species are known only from Ethiopia; an unusually high proportion of endemics which is explained by the fact that four (L. gramineus, L. ragazzii, L. yaldeni and L. susanae) are montane forms having their lower limits of distribution at about 2000 m or above, and there is a marked tendency for different species to be associated with different massifs. The remaining endemic is L. vannutellii, a species of lowland forest in southwestern Ethiopia. Leptopelis bocagei (Gunther, 1864) appears to be a more widely distributed form, although the application of this name to Ethiopian specimens is provisional since their relationship with typical bocagei from further south remains to be clarified. Even within Ethiopia...","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"137 1","pages":"85-136"},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76747213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/03749444.1978.10736585
B. Lanza
SUMMARY Description of a new maculilabris-like Mabuya from Somalia: Mabuya ferrarai n. sp. (Reptilia Squamata Scincidae).
索马里一新种:Mabuya ferrarai n. sp.(爬行纲:Squamata Scincidae)。
{"title":"MABUYA FERRARAI, A NEW SCINCOID LIZARD FROM SOMALIA","authors":"B. Lanza","doi":"10.1080/03749444.1978.10736585","DOIUrl":"https://doi.org/10.1080/03749444.1978.10736585","url":null,"abstract":"SUMMARY Description of a new maculilabris-like Mabuya from Somalia: Mabuya ferrarai n. sp. (Reptilia Squamata Scincidae).","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75008338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/00269786.1985.10736473
S. Turillazzi
SUMMARY The abdominal substance secreted by the females of five species of Parischnogaster (Hymenoptera Stenogastrinae) has various functions. It is used by the females to handle the egg at the moment of oviposition, it becomes the substratum and a protection for the young larva, it serves as a dish for the larval food and the place where reserves of liquid food for the colony are stored. In some species of Parischnogaster the substance is very probably the same as that used to construct the ant guards, sticky barriers against cursorial predators, with the possible addition of different secretions from the mouth.
{"title":"FUNCTION AND CHARACTERISTICS OF THE ABDOMINAL SUBSTANCE SECRETED BY WASPS OF THE GENUS PARISCHNOGASTER (HYMENOPTERA STENOGASTRINAE)","authors":"S. Turillazzi","doi":"10.1080/00269786.1985.10736473","DOIUrl":"https://doi.org/10.1080/00269786.1985.10736473","url":null,"abstract":"SUMMARY The abdominal substance secreted by the females of five species of Parischnogaster (Hymenoptera Stenogastrinae) has various functions. It is used by the females to handle the egg at the moment of oviposition, it becomes the substratum and a protection for the young larva, it serves as a dish for the larval food and the place where reserves of liquid food for the colony are stored. In some species of Parischnogaster the substance is very probably the same as that used to construct the ant guards, sticky barriers against cursorial predators, with the possible addition of different secretions from the mouth.","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"28 1","pages":"91-99"},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75602098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-12DOI: 10.1080/00269786.1973.10736216
C. Lombardo
SUMMARY The presence of two proprioceptor organs at the base of each of the three pairs of legs is reported for species from all of the orders of Insecta Pterygota. These organs were previously known only in the Blattoidea and Hymenoptera.
{"title":"ON THE PRESENCE OF TWO COXAL SENSE ORGANS IN PTERYGOTA INSECTS","authors":"C. Lombardo","doi":"10.1080/00269786.1973.10736216","DOIUrl":"https://doi.org/10.1080/00269786.1973.10736216","url":null,"abstract":"SUMMARY The presence of two proprioceptor organs at the base of each of the three pairs of legs is reported for species from all of the orders of Insecta Pterygota. These organs were previously known only in the Blattoidea and Hymenoptera.","PeriodicalId":19014,"journal":{"name":"Monitore Zoologico Italiano-Italian Journal of Zoology","volume":"201 1","pages":"243-246"},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73136002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：