Hyloicus pinastri
Palpus not as long as in Sphinx chersis, quite slender, especially in the female.Variable in ground colour and intensity of pattern, ranging from dark brown to cream, though usually a shade of grey. Antenna slightly less than half (male) or a little more than one third (female) the length of the forewing, slightly swollen distally. Thorax upperside mesially pale, with a dark lateral stripe. Foreleg with armature weak, none of the spines obviously elongate; foretibia only with a few apical and lateral spines; first protarsal segment as long as segments 2-4 together. Midtarsus without comb, the proximal spines of row 4 not longer than the more distal ones.Hindtibia without spines. Spurs long, with or without spines, the long distal spine of the hindtibia 2/3 to 3/4 as long as 1st hindtarsal segment, which is itself as long as segments 2-5 together. Paronychium usually with a triangular lateral lobe. Both wings uppersides with fringe alternating black (at the veins) and white. Abdomen upperside with a broad pale mesial band, with a central black line. Forewing upperside with discal marks very variable, ranging from absent to very well-marked, coalescing into a single, solid band. Undersides of both wings very uniform, almost unicolorous; the fringe as on the upperside, but less contrasting.
Male genitalia: Uncus strongly curved, broad, tapering to a point, somewhat flattened and sulcate dorsally, concave ventrally. Gnathos completely divided into two narrow, somewhat curved, lobes. Valve sole-shaped, rounded-narrowed from before midway to apex. Harpe with 2 processes: a ventral, broad, obtuse one, and a much longer dorsal one that is long, cylindrical, tapering to a pointed apex, curved, pointing ventro-distad. Phallus produced apically into a broad, tapering, curved, concave process.
Female genitalia: Ostial plate elongate-triangular, rounded distally. Ostium medial, covered proximally by a prominent, individually variable flap, not or weakly sinuate; posterior to ostium is a large, smooth mesial tubercle.