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Copyright of Revista de la Universidad del Valle de Guatemala is the property of Universidad del Valle de Guatemala and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In Venezuela, Olla timberlakei Vandenberg, 1992 has been watched predating nymphs of Psyllidae associated to Platymiscium diadelphum S.F. Blake. This research was made to identify the psyllid and to determine predator's biology. Insects were collected on oak's tree in Tarabana (500 m, Palavecino) and Barquisimeto (500 m, Iribarren) Lara state, Venezuela. The biology of O. timberlakei was determined in laboratory. The psyllid belongs to the genus Platycorypha Tuthill, 1945. The life cycle of predator was 11.47±0.65 days, with duration of egg, larvae and pupa of 2.56±0.32, 8.53±0.59 and 2.94±0.18 days, respectively. The female's longevity was 44.50±13.71 days, with daily oviposition of 14.76±3.05 egg with 82.80±5.39% of viability. [ABSTRACT FROM AUTHOR]

Copyright of Lilloa is the property of Fundacion Miguel Lillo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Two psyllid species are recorded for the first time from Argentina. They are pests originating from Australia that attack species of the genus Eucalyptus L´Hér. One of them, Glycaspis brimblecombei Moore is of great economic importance in neighboring countries for the damage which it is causing on its hosts. Little information on the biology and damage caused is available for the second species, viz Blastopsylla occidentalis Taylor. [ABSTRACT FROM AUTHOR]