Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . White-grub parasite, Tiphia inornata.—a, imago; b, head of larva; c, larva; rf, cocoon. THE INSECT WORLD 401 usually have a velvety appearance, or look as if they were cov-ered with a whitish bloom, and the wings are also either black oryellow, like the prevailing colors of the body. They lay theireggs in spiders, which they bury, and in which the larvae de-velop. Perhaps this is a good place to mention the fact thatthese digger-wasps make use of their stings and the poison s
Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . White-grub parasite, Tiphia inornata.—a, imago; b, head of larva; c, larva; rf, cocoon. THE INSECT WORLD 401 usually have a velvety appearance, or look as if they were cov-ered with a whitish bloom, and the wings are also either black oryellow, like the prevailing colors of the body. They lay theireggs in spiders, which they bury, and in which the larvae de-velop. Perhaps this is a good place to mention the fact thatthese digger-wasps make use of their stings and the poison se- Fio. Pepsis fortnosus, tarantula-hawk. creted by them for preserving from decay and in a conditionsuitable as food for their young the larvae, spiders, and otherinsects upon which they feed. They sting their prey very care-fully, in such a way as to paralyze and render it motionless,while yet it does not die ; and the larvae, when they hatch, beginfeeding very carefully, so as not to kill their host until they them-selves are sufficiently developed. • The poison introduced seemsto simply suspend life, or rather allows it to go on without awaste of tissue. Spiders of all kinds are attacked, and even thefierce tarantula of the South and Southwest has its enemy in anenormous species o{Pepsis known as the tarantula-hawk. Perhaps the most common forms belonging to this series arethose in which the abdomen ends in a small bulb-like structure 26
Size: 1677px × 1490px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1906
