6533b86efe1ef96bd12cb547

RESEARCH PRODUCT

Description of the final instar of Trichomalopsis peregrina (Hymenoptera, Pteromalidae), with data and comments on the preimaginal stages

subject

description

The preimaginal stages of T. peregrina are described. The egg displays a sculptured chorion, which is found only on those deposited externally. The immature larvae are characterized by their peculiarities in (a) a setose ring on the thoracic and abdominal segments, (b) an anal notch and (c) size and the sensory structures of the head capsule. The final instar is described and illustrated. Morphological structures of diagnostic value are discussed. The most salient character shown by the mature larva of this species lies in the epistoma, which is complete. Resumen. Se describen las fases de huevo y larva de T. peregrina . El huevo, como es característico en los que se depositan externamente, presenta un corion ornamentado. Las larvas inmaduras exhiben peculiaridades en (a) el anillo setoso de los segmentos torácicos y abdominales, (b) la escotadura anal y (c) el tamaño, y estructuras sensoriales, de la cápsula cefálica. El estado de carácter más sobresaliente presentado por la larva madura de esta especie radica en la presencia de un epistoma totalmente diferenciado.