BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
157 
1301. Riley, 0. V.—Continued. 
BENEFICIAL INSECTS. 
The glassy-winged soldier-bug, Campyloneura vitripennis . 137 
It preys upon different species of leaf-hoppers, 137—Its larva and 
pupa, 138—How it seizes its prey, 138—Coloration of the insect, 
138—It was never observed before to attack the leaf-hoppers of 
the grape-vine, 139—Habits of the Phytocoridce, 139. 
INNOXIOUS INSECTS. 
The white-lined morning Sphinx, Deilephila lineata . 140 
Resemblance of the moth to a bumming bird, 140—Interest at¬ 
tached to the study of lepidopterous larvae, 140—Larval varia¬ 
tions in the same species, 141—Food-plants of the larva, 141— 
The light and dark colored forms of the larva, 142—Its geograph¬ 
ical range, 142—Parasite, 142. 
Two OF OUR COMMON BUTTERFLIES . 142 
The archippus butterfly, Danais archippus . 143 
Synonymy of its specific name, 143—Its geographical distribution, 
143—Characters of the Danaidw, 143—Sexual differences, 143— 
Food-plants, 144—Hibernation, 144—Two annual broods, 144— 
Description of the egg, 144—The larva and its larval changes, 
145—How the horns of the larva become longer at each molt, 
145—The full-grown larva, 146—Interest attached to the meta¬ 
morphoses of insects, 146—How the larva becomes a chrysalis, 
147—The hardened chrysalis, 147—Duration of the chrysalis state, 
147—The issuing of the butterfly, 148—Protective colors of in¬ 
sects, 148—Nauseous odor of the archippus butterfly in all its 
stages, 149—The Tacliina-parasite of the archippus larva, 149— 
Action of the parasitized larva, 149—How the Tachina larva and 
other insects prepare the lid of their puparia, 149—Characters 
of this Tachiua-fly, 150—Difficulties of the study of the Tachi- 
narice, 150—Two forms occurring in Tachina archippivora, 150— 
The butterfly often congregating in immense swarms, 151—Prob¬ 
able reasons of this assembling in swarms, 152. 
The disippus butterfly, Limenitis disippns . 153 
Distinguishing characters of the Nymphalidi©, 153—Food-plants 
and geographical range, 153—The’ egg, 153—Description of the 
egg, 154—Development of the larva, 154—Description of the ma¬ 
ture and young larva, 154—The insect hibernates as young larva, 
155—Case prepared by the larva for its winter quarters, 155— 
Modifications of the case, 156—Peculiar habit of the autumnal 
larvae, 156—Parasites, 157—Tachina-fly, 157—The Disippus egg- 
parasite, 157—The disippus Microgaster, 158. 
Mimicry as illustrated by these two butterflies, with some remarks 
on the theory of natural selection. 159 
Conformity of color between animals and their surroundings, 159— 
Definition of the term “mimicry,” 160—Pungent odor possessed 
by the Danaidai, 160—Their mode of flight, 160—Protection they 
derive from their peculiar odor, 161— Pieridw and Danaidiu in the 
valley of the Amazon, 161—Mimetic forms of Pieridw, 161—Ex¬ 
planation of the origin of mimetic forms, 162—Mimicry between 
the archippus and disippus butterflies, 163—The Ursula butter¬ 
fly, 163—Its caterpillar and chrysalis undistinguishable from 
those of the Disippns, 163—Its imago has no protective color, 
164—Mr. Bennett’s objections to the theory of natural selection 
producing mimetic forms, 165—Mr. Scudder’s objections, 166— 
Discussion of Mr. Scudder’s arguments, 167—Mr. Murray’s ob- 
