438 Journal of Agricultural Research voi. xvui, no. 8 



the destruction of the phagocytes. This phenomenon has, up to the 

 present time, been overlooked by those investigators who have studied 

 the fungous diseases of insects. 



(6) The organism is readily cultivated on artificial nutrients and 

 exhibits two quite different types of growth when grown on favorable 

 media. 



(7) In certain cases, both when the fungus was grown on media and 

 when the resting spores were placed in a moist chamber, fruiting struc- 

 tures of the Isaria type developed. 



(8) No perfect or acigerous condition has been observed. 



(9) The disease caused by the organism is readily transmitted to 

 healthy insects, and in laboratory experiments a mortality of from 60 to 

 90 per cent may be readily obtained. 



LITERATURE CITED 



(1) AUDOUIN, V. 



1837. RECHERCHES ANATOMIQUES ET PHYSIOl^OGIQUES SUR LA MAI^ADIE CON- 



tagieuse qui attaque les vers A soie, ET qu'on d6signe sous le 

 NOM DE muscardine. In Ann. Sci. Nat. Zool., s. 2, t. 8, p. 229-245, 

 2 pi. 



(2) Bary, A. de. 



1867-69. zuR KENNTNiss insektentOdtender pilze. In Bot. Ztg., Jahrg. 

 25, No. I, p. 1-7; No. 2, p. 9-13; No. 3, p. 17-21, pi. I, 1867; Jaht^. 

 27, No. 36, p. 586-593; No. 37, p. 601-606, 1869. 



(3) Bresadola, J. 



1892. massospora STARiTzn BRES. N. SP. In Rev. Mycol., ann. 14, no. 55, 

 p. 97. 



(4) Cooke, M. C. 



1892. VEGETABLE WASPS AND PLANT WORMS. 364 p., 51 fig., 4 pi. London. 



(5) Danysz, J., and WizE, K, 



1901, DE L'UTILISATION DES MUSCARDINES DANS LA LUTTE AVEC LE CLEONUS 



punctivenTris. 39 p., 2 fig., 2 pL Paris. Bibliographic, p. 37-39. 

 (6) 



1903. LES ENTOMOPHYTES DU CHARANQON DES BETTERAVES A SUCRE (CLEONUS 

 PUNCTIVENTRIS). 7n Ann. Inst. Pasteur, v. 17, no. 6, p. 421-446. 



(7) Fawcett, Howard S. 



1908. FUNGI PARASITIC UPON ALEYRODES ciTRi. Univ. Fla. Spec. Studies, 

 no. I, 41 p., illus., 7 pi. Bibliography, p. 38-40. 



(8) GiARD, Alfred. 



1889. OBSERVATIONS SUR LA NOTE PRjfeC^DENTE [PAR N. SOROKIN]. In Bul. 



Sci. France et Belg., s. 3, ann. 2, p. 81-83. 

 (9) 



1893. A propos DU MASSOSPORA STARiTzii BRESADOLA. In Rev. Mycol., ann. 



15, no. 58, p. 70-71. 



(10) HoTsoN, John William. 



I912. CULTURE STUDIES OP FUNGI PRODUCING BULBILS AND SIMILAR PROPA- 



GATivE BODIES. In Proc. Amer. Acad. Arts and Sci., v. 48, no. 8, 

 p. 227-306, 12 pi. Literature, p. 303-306. 



(11) Krassilstschik, I. 



1886. DE INSECTORUM MORBIS, QUI FUNGIS PARASITIS EFFICIUNTUR. In Mem. 



Soc. Nat. Nouv.-Russie [Odessa], t. 11, pt. i, p. 75-112. Text in 

 Russian. 



