Characteristics and development of eggs in some true bugs (Hemiptera: Heteroptera). Part ΙΙ. Cimicomorpha and Pentatomomorpha

Abstract : The characteristics and development of eggs in eight species of Nearctic Cimicomorpha and thirteen species of Pentatomomorpha have been described and illustrated. Fieldwork was conducted in southwestern Québec and eastern Ontario. Eggs were obtained through breeding mature bugs in the laboratory. A total of 21 different species' eggs were morphologically studied in detail. Significant variations were observed in the form, size, chorion sculpture pattern, the shape and number of micropylar processes. Differences were also identified in the shape of four egg bursters, eclosion line of the operculum rim, and the central region of the anterior pole. Embryonic development was observed by dissecting eggs during incubation. Eggs were analyzed using stereomicroscopy and scanning electron microscopy (SEM). Eggs were classified based on their form, the number of ovarioles of each species, embryonic development, embryonic orientation, diapause, color, the position of the egg burster, and hatching. The emergence of the first-instar larvae was described and illustrated for representatives of fourteen families. True bug eggs are rarely encountered in insect collections, making this study valuable, as it includes the first collection of heteropteran eggs from two infraorders. The specimens collected are now housed at the Lyman Entomological Museum for future studies.
Keyword : Eggs, morphology, embryology, species identification, Cimicomorpha, Pentatomomorpha
Author(s) : Javahery, M.
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Published Issue : 2024 Vol. 19 Number 2

2024 Vol. 19 Number 2