10 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



6. WALSH, B. D. Insects injurious to vegetation in Illinois. < Trans. 



111. State Agric. Soc., September, J861, v. 4, pp. 335-378, figs. 

 1-11. Separate: 1861, 43 pp., 1 pi. Reprint in part : < Trans. 

 111. Nat. Hist. Soc., v. 1. Prairie Farmer, 6 December, 1861, 

 fv. ], n. s., v. , pp. 370-371. 



Ravages of injurious insects; enemies of the same ; notes on Cecidomyia de- 

 structor, Saperda bivittata [=cadu?a], Chrysobothris femorata, Conotrachelus 

 nenuphar and Blissus leucopterus; natural history, ravages and means 

 against Leucania unipuncta; figures its larva, pupa and imago; descrip- 

 tions and figures primary and secondary parasites of the army-worm; fig- 

 ures Hippodamia (=Megilla) maculata, Coccinella munda [=:*an(/uinea~] and 

 a larval cocciuellid. 



7. WALSH, B. D. From Benj. D. Walsh. < Illinois Farmer, October, 



1861. 



Denies statement attributed by C. Thomas (Illinois Farmer, September, 

 1861), that he (Walsh) believed in the hibernation of the pupa of Leucania 

 unipuncta. 



8. WALSH, B. D. The army-worm question. < Prairie Farmer, 5 De- 



cember, 1861, [v. 24], n. s., v. 8, pp. 370-371. S.-b., No. 4, p. 22. 



Replies to arguments of C. Thomas (Prairie Farmer, 1861, v. 8, pp. 306-307), 

 on the hibernation of Leucania unipuncta. 



9. WALSH, B. D. The army-worm question. Mr. Walsh's reply. 



< Field Notes, 14 December, 1861. 



Controversial answer to the assertion of J. H. Klippart (Field Notes, 30 No- 

 vember, 1861), that the larvae of Leucania unipuncta are viviparous. 



10. WALSH,. B. D. The army-worm and its enemies. <Prairie Farm- 



er, 1861, [v. 24], n. s., v. 8, p. 4. Eeprint: <Trans. 111. Nat. 

 Hist. Soc., v. 1. Prairie Farmer, 6 December, 1861, [v. 24], n. s., 

 Y. 8, pp. 370-371. 



Popular account of some of the parasites of Leucania unipuncta. 



11. WALSH, B. D. The army-worm. <Prairie Farmer, 1861, [v. 24], 



11. s., v. 8, pp. 257-258. Reprint: <Traus. 111. State Agric. 

 Soc., 1861, v. 4, pp. 373-375. 



Hibernation of the egg ; spring burning as a means against Lucania unipuncta; 

 description of ffockeria [=RaUichella] perpulchra n. sp. ; notes on other 

 parasites. 



12. WALSH, B. D. The army-worm and its insect foes. <Prairie 



Farmer, 1861, [v. 24|, n. s., v. 8, pp. 322-323; 337-339; 354- 

 355. 



Habits and description of larva and imago of Leucania unipuncta,' hiberna- 

 tion of the egg; figures of larva, pupa and imago; also of Exorista [=Ne- 

 morcea] leucanias, Pezomachus minimus, Microgaster [Apatiteles] militaris, 

 Hockeria [^Haltichella'] perpulchra and Glyphe viridascens. 



13. WALSH, B. D. Bug preying on honey-bee. <Prairie Farmer, 1861. 



S.-b., No. 4, p. 7. 



Unknown heteropteron, said to prey on Apig mellijica. 



