Extra-limital range . Given the variability of Hyles spp. Larvae from Shiraz, Iran, which produced typical adults of H. e. robertsi , were indistinguishable from individuals from southern Turkey which produced typical H. e. conspicua . Indeed, in northern Iran and across southern Turkmenistan, Uzbekistan and Tajikistan, the two subspecies intergrade, with many intermediate adult forms present. Very similar to H. e. euphorbiae but usually distinguished by the silver-white, oblique median stripe of the forewing and by the fringes of the tergites being pure white.
Females are often very much larger than the males.
Behaviour similar to subsp. Very similar to that of subsp. Herbaceous Euphorbia spp. Indistinguishable from subsp. Overwinters as a pupa.