LS-8-P-5982 INSECT IDENTIFICATION (Trioza Rusellae Tuthill) IN LEAVES Brosimum alicastrum Swartz IN YUCATAN, MEXICO

Brosimum alicastrum Swartz, (tree commonly known as “Ramon”) is a dominant tree in the forests of Mexico and Central America, it is considered as a species of high economic importance (Larqué-Saavedra, 2013). Its high nutritional value surpasses corn, wheat, oats, and rice, among others (Sánchez and Pardo, 1977); in addition, its performance is five times greater than corn (CATIE, 1999). In this work, the insect that produces galls on the Brosimum alicastrum Swartz (Ramon) tree was identified. There is evidence that the insect is Trioza Rusellae Tuthill. In order to isolate and identify it, there were collections performed some areas of the peninsula specify in the town of Muna and Sacalum, Yucatán. Five to ten years old trees were sampled; branches with leaves that had damage gills were selected, placed in plastic bags and taken to the laboratory. They were subsequently placed in entomological cages; adults were obtained with a vacuum cleaner and nymphs with a razor and a brush (0.000) taking them out of the gills. Both samples were preserved in 70% alcohol, and Formalin fixer-Water-Alcohol (FAA). From samples in 70% alcohol nymphs and adults were mounted, they were observed in stereoscopic microscope and the insects that did not show body harm and have whole organs were selected. The samples in FAA were processed and observed with an Scanining Electron Microscope JEOL 6360 LV. Both types of samples were photographed and the different development stages were identified with entomological keys