R. Engel May 15, 1951 309 Didymus undulatus undulatus Hayward, Alameda Co., Calif. Caught on big high-school loop. Und-marked cels - a little deeper than Capricorn Yellow but Condele cels - keuper than but close to Scarlet Ground cels - between Dark Olive-Gray and Iron Gray The normal color covers the first row of basal scale and touches the second row basally. The supralabials are moderately well-marked with orange, but are not sharply marked off from the gray of the head. SV 262 mm. Cels moderately well spotted.