Sphinx Moth

Antennae are generally not very feathery, even in the males.[2] They lack tympanal organs, but members of the tribe Choerocampini have hearing organs on their heads.[2] They have a frenulum and retinaculum to join hind wings and fore wings.[2] The thorax, abdomen, and wings are densely covered in scales. Sphingids may have a reduced proboscis, but most have a very long one,[2] used it to feed on nectar from flowers. Most are crepuscular or nocturnal, but some species fly during the day.[5] Both males and females are relatively long-lived (living 10 to 30 d).[5] Prior to flight, most species shiver their flight muscles to warm them up, and, during flight, body temperatures may surpass 40°C