It has been suggested that the underlying neural network involved in the selective phonotaxis of female crickets is partly based in the prothoracic
11) Pupa: head and prothoracic
spiracle, frontal view; (12) larva: spatula, sternal and lateral papillae, ventral view; (13) larva: last two segments.
spiracle large, but mostly covered by a posterior extension of paranotum.
Inhibition of insect development by simultaneous action of prothoracic
gland hormone and juvenile hormone.
The chemical constituent of this pesticide interferes with the synthesis and the release of hormones (ecdysteroids) from the prothoracic
gland, which leads to incomplete ecdysis in immature insects (Isman, 2006).
The presence of the prothoracic
tergite, with a semi-sclerotic appearance, was notable.
Legs brown, hind legs darker; hind femur, hind tibia with basal paler ring; hind tibial comb with 7 spines; prothoracic
tarsal ratio 1.
Thorax: Prosternum large, abutting proepisternum and prothoracic
coxae; dorsal (anterior) margin of prosternum with distinct flange-like projection (75); mesonotum strongly humped; postmetacoxal area membranous; anatergites asetose; pulvilli well developed; alula highly reduced (130); anal lobe and alula reduced and without bordering vein (ie.
The anterior spiracles are located on the middle of prothoracic
Conspicuous spatulate-tipped setae are present as follows: at anterior margin on prothoracic
shield, in pairs dorsally on other segments (Fig.
Among neurohormones released by the CC are prothoracicotropic (activating the prothoracic
glands to produce the ecdvsteroid molting hormone), diuretic, and antidiuretic hormones (neuroparsins, ion transport peptide, and other hormones controlling insect salt and water homeostasis) (Kind el al.
At the beginning of the 1940s, Fukuda first proposed that prothoracic
ground (PG) secrets a molting hormone.