108 MISC. PUBLICATION 734, U. S. DEPT. OF AGRICULTURE 



Hoy, J. M. 



1953 FIRST RECORD OF THE OCCURRENCE OF ERIOCOCCUS LEPTOSPERMI MASK. 



in new Zealand. Ent. Soc. New Zealand 1(1) : 1. 

 Also reports on Eriococcus n. sp. to be described separately. 



1954 A NEW SPECIES OF ERIOCOCCUS TARG. (HEMIPTERA, COCCIDAE) ATTACK- 



ING leptospermum in new Zealand. Roy. Soc. New Zeal. Trans. 



82: 465-474, ilhis. 

 E. orariensis; previously published as E. marmkae nom. nud. (Ibid 

 82 (1) : 115-118). 



Hubbard, H. G., and Pergande, T. 



1898 A new coccid on birch. In U. S. Dept. Agr., Div. Ent. Bui. (n.s.) 18: 

 13-26, illus. 

 Xylococcus betulae Pergande described and life history discussed. 



Huergo, J. M. 



1908 EL DIASPIS PENTAGONA EN LA REPUBLICA ARGENTINA. Buenos Aires 



Cent, de Estud. Agron. y Vet. Rev. 1(3) : 5-16, illus. 

 Includes descriptive information and mention of several other coccids. 



HUGHES-SCHRADER, S. 



1925 CYTOLOGY OF HERMAPHRODITISM IN ICERYA PURCHASI (COCCIDAE). 



Ztschr. f. Zellforsch. und Mikros. Anat. 2: 264-292, illus. 



1926 spermatogenesis in icerya purchasi — a correction. Science 63 



(1637) : 500-501. 



1927 ORIGIN AND DIFFERENTIATION OF THE MALE AND FEMALE GERM CELLS IN 



THE HERMAPHRODITE OF ICERYA PURCHASI ( COCCIDAE). Ztschr. f. 



Zellforsch. und Mikros. Anat. 6: 509-540, illus. 



1930 CONTRIBUTIONS TO THE LIFE HISTORY OF THE ICERYINE COCCIDS, WITH 



SPECIAL REFERENCE TO PARTHENOGENESIS AND HERMAPHRODITISM. 



Ent. Soc. Amer. Ann. 23: 359-380. 



1930a THE CYTOLOGY OF SEVERAL SPECIES OF ICERYINE COCCIDS WITH SPECIAL 

 REFERENCE TO PARTHENOGENESIS AND HAPLODDY. Jour. Morph. and 



Physiol. 50: 475-495, illus. 



1931 A STUDY OF THE CHROMOSOME CYCLE AND THE MEIOTIC DFVISION-FIGURE 



IN LLAVEIA BOUVARI A PRIMITIVE COCCID. Ztschr. f. Zellforsch. U. 



Mikros. Anat. 13: 742-769, illus. 



1935 THE CHROMOSOME CYCLE OF PHENACOCCUS ( COCCIDAE ) . Biol. Bui. 49: 



462-468, illus. 



1940 THE MEIOTIC CHROMOSOMES OF THE MALE LLAVEIELLA TAENECHINA 



MORRISON (COCCIDAE) AND THE QUESTION OF THE TERTIARY SPLIT. 



Biol. Bui. 78: 312-337, illus. 



1942 THE CHROMOSOMES OF NAUTOCOCCUS SCHRADERAE VAYS, AND THE 

 MEIOTIC DIVISION FIGURE OF MALE LLAVEIINE COCCIDS. Jour. Morph. 



70: 261-299, illus. 



1944 A PRIMITIVE COCCID CHROMOSOME CYCLE IN PUTO SP. Biol. Bui. 87: 



167-176, illus. 



1946 A NEW TYPE OF SPERMIOGENESIS IN ICERYINE COCCIDS, WITH LINEAR 

 ALIGNMENT OF CHROMOSOMES IN THE SPERM. Jour. Morph. 78: 43- 



84, illus. 



1948 cytology of coccids (coccoidea-homoptera) . Advances in Genetics 

 v. 2, p. 127-203, illus. 

 A critical review of knowledge to date; observations on relation to 

 classification of coccids. 



See also Schrader, F., and Hughes-Schrader, S.; Vayssiere, P., and 

 Hughes-Schrader, S. 



Hughes-Schrader, S., and Ris, H. 



1941 the diffuse spindle attachment of coccids, verified by the 



MITOTIC BEHAVIOR OF INDUCED CHROMOSOME FRAGMENTS. Jour. Expt. 



Zool. 87: 429-456, illus. 



