Monthly Archives: January 2016

Living With Horns

Caterpillars in the family Sphingidae are noted for the horn on the abdomen. Like many other insect parts, the scale of the horn relative to the body size changes as the caterpillar develops. ¬†In the first instar tobacco hornworm larva, … Continue reading

Posted in by jjneal, Development, Taxonomy | 1 Comment

Living With Chameleon Color

The Australian chameleon grasshopper has the unusual property of changing color. At low temperatures, males are black. At temperatures above 25C, they turn a bright blue in a process that takes about 30 minutes. If the temperature is lowered to … Continue reading

Posted in Biomaterials, by jjneal, Environment | 2 Comments

Living With Changing Colors

The Indian stick insect, Carausius morosus, has the ability to change its color. When placed in the dark, its coloration darkens. In light, the process reverses. The color change occurs in less than one hour. How do they change color? … Continue reading

Posted in Biomaterials, by jjneal, Environment | 1 Comment

Golden Beetles

Tortoise beetles can undergo rapid color change. Edward Barrows* observed these beetles in the laboratory and noted that they could change color from brownish orange with black spots to a metallic gold in as little as 120 s. If disturbed, … Continue reading

Posted in Biomaterials, by jjneal, Environment | Leave a comment

Living With Mosquitoes

The Zika virus link to microcephaly has set off alarms throughout the Americas. Brazil, the epicenter of Zika in the Americas went from 150 cases of microcephaly to over 4000. This has led the CDC to issue travel alerts, especially … Continue reading

Posted in by jjneal, Health, News, Pest Management, Policy | 1 Comment

Living With Daylighting

Urban streams can be an impediment to movement and land use. In the past, some streams have been engineered into underground pipes. This solves issues related to human movement, but can alter the macroinvertebrate composition. Occasionally, the process is reversed; … Continue reading

Posted in by jjneal, Environment, Policy | 1 Comment

Insects of January

Warm days above freezing in January are a good time to look for winter stoneflies. ¬†Winter stoneflies emerge in the dead of winter and can be found basking on the sunny side of bridge piers. Stoneflies have a number of … Continue reading

Posted in behavior, by jjneal, Environment | 1 Comment