Structure of the scent gland system of the Sunn pest Eurygaster integriceps Put.
1990
Daroogheh, H.
The occurrence, in Eurygaster integriceps, of a monomorphism in the divided dorsal abdominal scent gland dg1 is reported. Counts made of ducted secretory units indicate that male and female dg11 and dg111 regress at the end of larval development unlike adult dg1 which undergoes no regression. Fig. 1 depicts the metathoracic scent apparatus from a mature female adult of E. integriceps. The metathoracic scent gland system of E. integriceps is made of a single gland, a median reservoir and a single pair of secretory tubules. The tubules are unpigmented, unlike the epithelium of median reservoir tissue which is pigmented an orange color. In addition to the usual secretory tubules and median scent reservoir, there is a markedly linear form accessory gland in the formation of scent gland aldehydes in the metathoracic scent gland has been indicated (Gilby and Waterhouse, 1967; Games and Staddon, 1973; Aldrichet et al., 1978). The metathoracic scent gland is sexually monomorphic and there is no lateral reservoir
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