They range in size from 2 5 cm, and are caused by chemicals injected by the larva of certain kinds of gall wasp in the family Cynipidae.
32.
The researchers, whose study appears in The Proceedings of the National Academy of Sciences, studied gall wasps in prairie dock and another Silphium species, the compass plant.
33.
A less crafty director and screenwriter might have skipped over Kinsey's early years as a biologist obsessed with gall wasps to get straight to the naughty bits.
34.
Although normally distinctive the knopper gall can, under some growth conditions, be mistaken for the acorn cup gall, caused by the gall wasp " Andricus grossulariae ".
35.
He traveled widely and took 26 detailed measurements of hundreds of thousands of gall wasps; his methodology was itself an important contribution to entomology as a science.
36.
The presence of these inquilines and parasites is often visible on older galls by the presence of fine exit-holes, smaller than that of the gall wasp itself.
37.
During the first 20 years of his career, Alfred Kinsey became the world's leading authority on the gall wasp, a nonstinging insect about the size of an ant.
38.
Although normally distinctive the asexual acorn cup gall can, under some growth conditions, be mistaken for the knopper gall, caused by the gall wasp " Andricus quercuscalicis ".
39.
"I always knew gall wasps were going to make people beat a path to my door, " Kinsey, soulfully played by Liam Neeson, says in Bill Condon's multifaceted biopic.
40.
In British Columbia, the Garry oak can be infested by three nonnative insects : the jumping gall wasp " Neuroterus saltatorius ", the oak leaf phylloxeran, and the gypsy moth.
