RÉSUMÉ
Resumen Se presenta una revisión de los ejemplares de Coccinellini micofagos procedentes de varias provincias del departamento del Cusco, en el sur oriente de Perú. Este grupo presenta actualmente nueve especies en el país, dentro de los géneros Oxytella Weise 1902, y Psyllobora Chevrolat 1836. En el material examinado se reporta la ocurrencia de cinco de ellas: Oxytella longula Weise, Psyllobora marshalli Crotch, abancayana Almeida, P. constantini González, Perla & Almeida, y P. hybrida (Mulsant); además de otras tres especies, aún no identificadas, dentro del género Psyllobora. Para cada especie se presenta una diagnosis, fotografías y microfotografías de habito y estructuras genitales, e información sobre su distribución en Cusco.
Abstract In this work, we presented a review of the specimens of mycophagous Coccinellini from various provinces of the Cusco Department, south east of Peru. This group currently has nine species in the country, within the genera Oxytella Weise 1902, and Psyllobora Chevrolat 1836. In the material examined the occurrence of five of them is reported: Oxytella longula Weise, Psyllobora marshalli Crotch, P. abancayana Almeida, P. constantini González, Perla & Almeida, and P. hybrida (Mulsant); in addition to three other species, not yet identified, within the genus Psyllobora. For each species a diagnosis, photographs and photomicrographs of habit and genital structures, and information on their distribution in Cusco are presented.
RÉSUMÉ
Cannibalism of eggs by larvae of Adalia bipunctata, an aphidophagous species of ladybirds, is important for survival when aphids are scarce. Ladybirds survive longer by eating eggs of their own species rather than aphids. Since it costs less, in terms of larval growth, to eat eggs rather than aphids, cannibalism has a strong advantage under conditions of prey scarcity.