2015年5月19日 · Bedford (1976c, 1980) reviewed the life-cycle of O. rhinoceros and noted a wide range in the duration of the third-instar larvae (60-165 days) compared to the other stages. This may be caused by differences in climatic and nutritional conditions of different habitats.

coconut rhinoceros beetle has four life stages: egg, larva, pupa, and adult, with the larva having three stages called instars (fig. 2). The lifespan depends on environmental conditions, varying between 9 and 18 months. Generation time varies between 5 and 9 months.

Coconut Rhinoceros Beetle Life Cycle. Egg Stage: Adult females lay eggs in burrows of organic dead or dying material, preferably in dead palm logs, standing or on the ground, or palm stumps. Eggs are initially soft and elongated, but after 4-5 days, they expand into sturdy spheres (balls) measuring 3-4 mm in size.

Illustration of life cycle of Oryctes rhinoceros with egg, 3 larval stages (instars) and pupa spent in decaying coconut trunks or other decaying organic matter, and adult stage spent in coconut or oil palms

Oryctes rhinoceros (L.), the coconut rhinoceros beetle, is a pest species occurring throughout many tropical regions of the world. Adults can cause extensive damage to economically important wild and plantation palms.

2014年7月3日 · Zelazny and Alifiler (1987) described four phases of the adult life of O. rhinoceros in the Philippines: immature phase, first feeding, breeding phase, and late life feeding. The last two phases occurred simultaneously. In late life feeding, the beetles will occasionally make additional visits to palms (reviewed in Alfiler, 1999).

2022年9月1日 · The life cycle of O. rhinoceros ranges from four to nine months long, allowing for more than a generation per year (Nirula et al., 1955, Indriyanti et al., 2017). It undergoes complete metamorphosis and adults can live for about 4.7 months, …

LIFE CYCLE OF THE COCONUT RHINOCEROS BEETLE Oryctes rhinoceros Data Source: Bedford, G. 1980. Biology, Ecology, and Control of Palm Rhinoceros Beetles. Annual Review of Entomology 25: 309-339.

The Coconut Rhinoceros Beetle (Oryctes rhirtoceros) is a major pest of the coconut palm in its Asian homeland and on the South Pacific islands it has invaded. Each adult female lays 3 or 4 clutches, with about 30 eggs per clutch, in

Holes made by adult coconut rhinoceros beetle, Oryctes rhinoceros, in the base of fronds. Presumably, the holes were made when the leaves were much younger as the beetle tunnelled into the crown of the palm.