This past spring, we had a reasonably decent emergence of Spicebush Swallowtail butterflies. To be sure, it was later and sparser than has been typical in earlier years, but that was true of just about everything so I wasn't particularly surprised... or worried. The gorgeous, dark-winged lepidopterans are also known as "green-clouded butterflies," that common named derived from the characteristic blue-green haze on the hind wings (blue-green in males, blue in females); the "spicebush" part of the more-used common name comes from the favorite food of the caterpillars. However, not long after the Dame's Rocket and other "energy drink" sources ended their flowering season in June, the Spicebush Swallowtails started to disappear as well. They've been few and far between in July, but recently, about the time that the Sweet William blossom heads emerged, we seem to have had a new flush of Papilio troilius adults. The second generation of these beauties has emerged from pupation, and with the Impatiens of all sorts putting on a fine blossoming show of their own, there's plenty of nectar for the adults to enjoy