Relationship between female size, type of egg mass deposited, and description of the oviposition behavior of the sibling species Tabanus nigrovittatus and T. simulans (Diptera: Tabanidae)
Graham N.L.; Stoffolano J.G.
Annals of the Entomological Society of America 76(4): 699-702
Smaller flies (Tabanus nigrovittatus Macquart) deposit double-tiered egg masses on the adaxial surface of leaf blades of Spartina alterniflora Loisel while orienting on the leaf blade with their head directed towards the marsh surface. The larger females (T. simulans Walker) deposit single-layered, shingled eggs with their head oriented toward the sky. T. simulans was observed ovipositing in both the laboratory and field, whereas T. nigrovittatus was only observed laying eggs in the laboratory.