Elementary entomology ([c1912]) Elementary entomology elementaryentomo00sand Year: [c1912] * IF FIG. 267. Three common pierid butterflies , imported cabbage butterfly (Pontia rapae), female ; c, the common sulphur butterfly (Eurymus philodice), female. (Photograph by Fiske) family it has a pair of pecu- liar, orange-colored, mem- branous horns, which are protruded from between the segments close to the head and which give off quite a disagreeable odor. Evidently these are defen- sive organs, for they appear only when the caterpillar is disturbed. This family includes our largest and most b
![Elementary entomology ([c1912]) Elementary entomology elementaryentomo00sand Year: [c1912] * IF FIG. 267. Three common pierid butterflies , imported cabbage butterfly (Pontia rapae), female ; c, the common sulphur butterfly (Eurymus philodice), female. (Photograph by Fiske) family it has a pair of pecu- liar, orange-colored, mem- branous horns, which are protruded from between the segments close to the head and which give off quite a disagreeable odor. Evidently these are defen- sive organs, for they appear only when the caterpillar is disturbed. This family includes our largest and most b Stock Photo](https://c8.alamy.com/comp/RWK64J/elementary-entomology-c1912-elementary-entomology-elementaryentomo00sand-year-c1912-if-fig-267-three-common-pierid-butterflies-imported-cabbage-butterfly-pontia-rapae-female-c-the-common-sulphur-butterfly-eurymus-philodice-female-photograph-by-fiske-family-it-has-a-pair-of-pecu-liar-orange-colored-mem-branous-horns-which-are-protruded-from-between-the-segments-close-to-the-head-and-which-give-off-quite-a-disagreeable-odor-evidently-these-are-defen-sive-organs-for-they-appear-only-when-the-caterpillar-is-disturbed-this-family-includes-our-largest-and-most-b-RWK64J.jpg)
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Elementary entomology ([c1912]) Elementary entomology elementaryentomo00sand Year: [c1912] * IF FIG. 267. Three common pierid butterflies , imported cabbage butterfly (Pontia rapae), female ; c, the common sulphur butterfly (Eurymus philodice), female. (Photograph by Fiske) family it has a pair of pecu- liar, orange-colored, mem- branous horns, which are protruded from between the segments close to the head and which give off quite a disagreeable odor. Evidently these are defen- sive organs, for they appear only when the caterpillar is disturbed. This family includes our largest and most brilliant butterflies. The spring and summer broods of some species are so differently colored that they might be taken for distinct species. Pieridae. The family Picridac includes the yel- low butterflies (sometimes called puddle butterflies, from their habit of swarm- ing around puddles) and the common white cabbage butterfly, which is almost the only form of economic importance in the family. The larvae are slender green caterpillars, clothed with short, fine hairs, and are often finely striped, resembling the cabbage worms. The larvae of the common clouded sulphur (Enrymns philodice) feed on clovers and leguminous plants, but are rarely numerous enough to be injurious. The gossamer-winged butterflies (Lycaenidae), so called on account of their delicate struc- ture, include the little blue and copper-colored