196 BIBLIOGRAPHY OP ECONOMIC ENTOMOLOGY. 



1482. KILEY, C. V. Continued. 



THE GRAPE PHYLLOXERA, Phylloxera vastatrix 157 



The injuries not great in Missouri in 1875, 157 Completion of its 

 natural history, 157 Where the winged female lays her eggs, 

 157, 161 The sexed individuals illustrated, 158 Description of 

 the true female, 159 Description of the impregnated egg, 159, 

 162 Practical considerations growing out of these latest discov- 

 eries, 163 Decortication of the bark to destroy the impregnated 

 egg, 163 The insect may be imported from one country to another 

 on cuttings as well as rooted plants, 163 Best time to attack the 

 root-lice, 163 Phylloxera ravages in California, 163 Great de- 

 strnction around Sonoma, 164 Need of action by the State au- 

 thorities, 164 Occurrence of Phylloxera in the Southern States, 

 164 Report of committee appointed by the American Pomologi- 

 cal Society, 165 Its occurrence in Georgia, 166, 167 American 

 grape-vines in Europe, 167 Large demand for our vines, 167 

 The American vines flourishing in Southern France where the 

 European varieties perish, 167 The orders for some varieties 

 exceeded the supply, 168 Probable futui-e demand, 168. 



INNOXIOUS INSECTS. 



THK YUCCA BORER, MegaiJiymus yuccce 169 



The only North American butterfly whose larva has the boring 

 habit, 169 The arbitrary nature of class! ficatory divisions, 170 

 Butterflies and moths not easily separated, 170 Biological his- 

 tory of the species, 171 Illustrations of all states, 171, 172 

 Habits of the larva, 171, 172, 181- Mode of pupation, 172,180 

 Flight of the imago, 173, 181 Position of wings when the imago 

 rests or walks, 173 Bibliographical notes, 173 Detailed descrip- 

 tions of the different states, 174, 175, 181 Structural characters 

 illustrated, 175 Affinities of the species, 176 It is a true but- 

 terfly, belonging to the hesperians, 178 Characters of the cast- 

 nians contrasted with those of hesperians, 176, 177, 178 In 

 classification it is better to widen than restrict in the higher 

 groups, 179 Enemies of the Yucca borer, 179 Concluding re- 

 marks, 179 Unsafe to describe species from mere drawings, 179. 



NOXIOUS INSECTS Continued. 



SUPPLEMENTARY NOTES ON THE ARMY-WORM, Leucania unipuncta 182 



Completion of its natural history, 182 Ovi position of the moth 

 described, 183 Eggs described, 183 Conclusions previously ar- 

 rived at verified, 184 Description of the different larval stages, 

 184. 



1483. EILEY, C. V. Is the Colorado potato-beetle poisonous ! <Col- 



man's Eural World, 7 June, 1876. S.-b. No. 10, pp. 164-165. 

 Extract from the 8th Ann. Rept. State Ent. Mo., pp. 10-12 ; abstract and 

 critical review of Grote and Kayser's "Are potato-bugs poisonous ?"; con- 

 siders the experiments inconclusive. 



1484. [EiLEY, C. V.] The eggs of the army-worm. <Colman's Rural 



World, 7 June, 1876. S.-b. No. 10, p. 170. Reprint: <Traus. 

 Acad. Sci. St. Louis, June, 1876, v. 3, p. 211 Proc. <Arner. 

 Nat, August, 1876, v. 10, pp. 508-509. 



Reasons why eggs of Leucania unipuncta have not been observed heretofore ; 

 verification of author's conclusions as to the probable method of ovi posi- 

 tion of this species; description of eggs and young larv. 



