Morphology and Postdepositional Dynamics of Eggs of the Predator Podisus distinctus (Stål) (Heteroptera: Pentatomidae: Asopinae).
The predator Podisus distinctus (Stål) (Heteroptera: Pentatomidae: Asopinae) has been reared to control lepidopteran defoliators. In this study, we describe this predator's morphology, postdepositional dynamics and eggs in different developmental stages under scanning electron microscope. Its eggs are subglobular and ovoid, narrower at the base than at the top, with a convex, circular operculum. They measure 1.09±0.03 mm in height and 0.90±0.04 mm in diameter. The aero-micropylar processes number 16.00±2.00 and are arranged radially at the egg anterior pole. Immediately after laying, the egg color is pearl-like, and soon after turns gray. Orientation of the spine-like projections and aero-micropylar processes also change after deposition. Though the eggs of P. distinctus are similar to those of other species of the genus Podisus, certain aspects, including the egg size and shape, chorion micro-sculptures, and number of aero-micropylar processes, are specific, allowing for differentiation from other related species.
Universidade do Estado de Minas Gerais - Faculdade de Engenharia, MG. Brasil. verisgibran@gmail.com
Veríssimo Gibran Mendes
VG
De Sá
José Cola
JC
Zanuncio
Marcus Alvarenga
MA
Soares
Cassiano Sousa
CS
Rosa
José Eduardo
JE
Serrão
D000818:Animals; D020062:Heteroptera / Q000033:anatomy & histology* / Q000145:classification / Q000254:growth & development; D010063:Ovum / Q000737:chemistry / Q000145:classification / Q000254:growth & development*