Eupanacra mydon (Taxonomy)
Synonymized with Choerocampa scapularis (Walker) by Boisduval, [1875], in: Boisduval & Guen├®e, Hist. nat. Insectes (Spec. g├®n. L├®pid. H├®t├®roc├¿res) 1: 282. Reinstated as a species by Butler, 1876, Trans. zool. Soc. Lond.9: 550. Transferred to Eupanacra by Cadiou & Holloway, 1989, Lambillionea89: 139. Erroneously returned to Panacra by Bridges, 1993, Cat. Fam. Gen. Spec. Sphingidae of the World: VIII.18. Returned to Eupanacra by Kitching & Spitzer, 1995, Tinea14: 186. Implicitly transferred to Panacra by Zhu & Wang, 1997, Fauna Sinica Insecta 11: 335 (key), 337. Implicitly transferred back to Eupanacra by Kitching & Cadiou, 2000, Hawkmoths of the world: 45.
Sexes dimorphic, the brown of the ground colour and darker markings of the female being somewhat more reddish. Wing margins somewhat scalloped. Forewing slightly excavate below apex. Tegula with a pale gold apical fringe consisting of a few large, metallic scales. Middle of thorax and anterior abdominal tergites broadly greyish-clay. Abdomen upperside with a few racket-shaped white scales present laterally at the apices of tergites 3-6. Abdomen underside without a pair of distinct median black dots on segments 3-6. Forewing upperside shaded with brown in both sexes, the male not much paler than the female (unlike Eupanacra elegantulus); first postmedian line not quite straight, ending in a black costal spot just distal to apex of R; third and fourth postmedian lines dentate, accentuated by vein-dots, but vestigial between veins; a brown, triangular marginal area from M1 posteriorly, separating a pale, roughly triangular area from the distal margin; fringe of heavily marked with black. Forewing underside with submarginal line parallel to distal margin, curving costad anteriorly, dentate, accentuated by vein-dots; brown marginal band dilated around M2. Hindwing upperside with fringe of heavily marked with black. Hindwing underside with brown marginal band dilated around M2. Uncus similar to Eupanacra regularis regularis but a little broader. Gnathos similar to Eupanacra regularis regularis. Valve with many stridulatory scales. Harpe slender, similar to Eupanacra automedon, not distinctly spatulate. Aedeagus apical process with right lobe projecting, as in Eupanacra regularis regularis, but broader apically and more heavily dentate, scarcely longer than broad; left lobe similar to Eupanacra malayana but broader.