Top Photo: Little Bear by the waterfall. Little Bear’s pelage stands out among our three black bears occupying the Black Bear Enclosure. The following are subjects you might encounter on our Outdoor Loop Trail in late spring to early summer, now. Two very common and widespread dragonflies, common whitetail and eastern amberwing are sure to be seen on any sunny day. Not as frequently seen but still common are Carolina saddlebags. They spend much of their time on the wing.Read more
Posts filed in: Insects
Cicadas and Other Things Around the Campus
Top Photo: Magicada tredecim, one of two species of periodical cicadas emerging this spring in the Central Piedmont of North Carolina. You’ve most likely heard about the emergence of two broods of cicadas this spring, Brood XIII and Brood XIX of seventeen year and thirteen year periodical cicadas, respectively. Here in Durham and surrounding counties there is no overlap of the two broods but there are two species emerging at the same time from Brood XIX. Magicada tredecim and MagicadaRead more
More Spring Sightings and a Red Wolf Observation
Top Photo: Male common whitetail. Common whitetails are everywhere. Ponds, lakes, even slow moving rivers and streams are home to this ubiquitous skimmer. The standout white/blue abdomen and dark marks on the wings lend to the easy recognizability of the male. The female too, is easily recognized by the three dark markings on each of her four wings. They both tend to perch low to, or directly on, the ground. Another early season dragonfly making an appearance is the blueRead more
Spring Appearances
Top Photo: Fatsia japonica or Japanese Fatsia, fruit. Not native but planted on the Dinosaur Trail to enhance the sense of a long ago tropical realm, fatsia is in fruit, but going fast. The plant’s name is derived from the fact that fatsia, in an old Japanese language, means eight, presumably referring to the number of lobes on the plant’s large palmate leaves. This, even though the leaves never have an even number of lobes, or points. I’ve consistently countedRead more
Four Serendipitous Encounters
Top Photo: Centipede crosses path in front of me. At the end of the day while doing my routine walkabout to insure there was no one left behind as we closed for the day, a large centipede crossed the dimly lit path in front of me. The long, thin, multi-legged creature seemed in a hurry to get to the other side of the path. Then again, most centipedes discovered out in the open are in a hurry to get somewhere.Read more
How do they do it?
Top Photo: Banded sphinx moth caterpillar barely hanging on. Following the night of our first frost of the season I ventured out to the Floating Walkway in our wetlands to see if I could find a banded sphinx moth caterpillar that had been seen the day before. I was interested in learning about their behavior in regard to pupation, where, when and how they go about that process. The caterpillar was still there. It was, however, only hanging on byRead more
Another Sphinx?
Top Photo: Fourth instar banded sphinx moth caterpillar (photo – Ranger Lauren). What at first appeared to be a new species of sphinx moth caterpillar on the quickly fading wingleaf primrose-willow (Ludwigia decurrens) in our wetlands here at the museum, turned out to be another of many banded sphinx moths (Eumorpha fasciatus) seen this year. It was a 4th instar caterpillar, and so, different in pattern than the preceding 3 stages and the following and final 5th stage of caterpillarRead more
Seeds, Leaves, Two Volunteers, and a Flower
Top Photo: Tiny seeds from pod of wingleaf primrose-willow in wetlands. Wingleaf primrose-willow (Ludwigia decurrens) is sometimes called seedbox because of its seed pod shape, square in cross section. Other names include, wingstem water primrose, willow primrose, upright primrose-willow. The alternate leaves of Ludwigia decurrens are “decurrent” – the leaf base extends down the plant’s stem as “wings.” This herb grows in wet or marshy areas, and is sometimes aquatic. Fragments of the plant will root in a day or twoRead more
Borers, Bees, Pods, Sunflowers, and Nest Box Maintenance
Top Photo: Locust borer on goldenrod. Each year as goldenrod puts forth flowers, I expect to see locust borers actively feeding on nectar from the bright yellow florets. The beetles are rather well camouflaged among the flowers and not always easy to find. In late summer through fall, the adult beetles lay eggs in cracks of black locust bark. The hatching larvae burrow into the inner bark to overwinter. The warm temperatures of spring bring about renewed larval activity, andRead more