Hyloicus oberthueri
Legs similar to those of Sphinx caligineus: tibiae almost without spines; spurs short, the long apical one of the hindtibia about one third the length of 1st hindtarsal segment, which is itself as long as segments 2-5. Forewing much more elongate than in Sphinx caligineus and Sphinx pinastri. Colour similar to Sphinx caligineus caligineus, but the fringe as sharply marked brown and white as in Sphinx pinastri. Hindwing with stalk of veins Sc and M1 about half as long as crossvein m1-m2. Abdomen with narrow lateral white bands. Body underside paler grey than upperside.
Male genitalia: Uncus elongate, more slender than in Sphinx caligineus, slightly dilated before apex, the edge somewhat notched, shortly hooked at apex, the ventral side deeply concave .Gnathos longer than in Sphinx caligineus and Sphinx pinastri, sinuate, the lobes slender, subconical, somewhat curved apically. Valve similar to that of Sphinx caligineus, more rounded than that of Sphinx pinastri. Harpe characteristic, with 2 short distal processes separated by a rounded sinus, the upper process with 1 or more marginal teeth, the lower subconical, pointed, slightly curved, narrower and shorter than the upper. Phallus produced into a short process that is rounded apically and slightly curved.