The two moths that star in this episode are the Grapeleaf Skeletonizer Moth and the Virginia Creeper Clearwing. They are not related to each other (other than their shared Lepidopteranism), but they have a number of things in common.
The Yucca Moth family is a primitive one that is found worldwide, though not all Prodoxids are involved with yuccas. As a group, they are smallish and nondescript. The number of species associated with yucca is up in the air because, as Holland went on to predict, “ No doubt there are other species of Yucca which will be ultimately discovered to have species of Pronuba which are adapted in their organs to the work of pollination according to their peculiar requirements ”
Eight-spotted Forester Moths is a smallish, flashy, day-flying moth that is often mistaken for a butterfly when it’s nectaring on flowers. Their caterpillars graze on leaves of plants in the grape family including wild and domestic grapes, woodbine/Virginia Creeper, peppervine, porcelain berry, and false grape in forest edges and sunny spots, and on vine-covered buildings.
Underwing Moths can be seen in wooded areas from southern Canada and the Dakotas south to Texas, and thence east to the Atlantic. Adults fly during the second half of the moth season and hide by day in sheltered places. Adult Underwings feed on nectar or sap, and the BugLady sees them on the woodpeckers’ oranges at night. Their caterpillars are food specialists; most eat the leaves of willow, hickory, walnut, oak, locust, hawthorn, and poplar.
There are moths whose larvae flirt with the aquatic environment by feeding on/in the stems of emergent aquatic plants, but there is also a small group of small moths whose caterpillars live underwater. Adult Two-banded Petrophila Caterpillars are found near the rivers and streams in eastern North America that their larvae inhabit. The hind wings of adult Petrophila moths have a row of black/metallic spots that make one spider enthusiast theorize that they’re Jumping spider mimics
In lieu of the usual bug biography, the BugLady presents The Twelve Bugs of Christmas—a tribute to a dozen insects (a Baker’s Dozen, really) that were photographed this year but not featured in a BOTW. Let the singing commence.
Adult Dingy Cutworm Moths fly at night throughout summer and fall, resting and nectaring on flowers in the aster/daisy/composite family. DCM eggs are laid by late August on clovers, dock, members of the aster family, and a number of agricultural crops like alfalfa, tobacco, wheat and corn. Picture-Winged Flies, on the other hand, prefer their corn on the cob.
The Greater and the Lesser Grapevine Loopers (Eulithis gracilineata and E. diversilineata) live in suburban, rural, and wooded areas in eastern North America. Although the caterpillars are quite distinct, adults can be the very devil to differentiate;
Today we consider three fuzzy, fall caterpillars. Some long-haired caterpillars have irritating/poisonous hairs, but the sources that the BugLady consulted underplay the “toxicity card” in connection with these three. They all spend the winter as pupae. The BugLady didn’t find any mention of the adults’ feeding preferences, so they probably don’t feed at all.
The BugLady has many pictures of bugs about whom she can’t find enough information to write a complete biography. Here are three more of them.