12 MISC. PUBLICATION 987, U.S. DEPT. OF AGRICULTURE 



Brown, S. W. 



1957 CHROMOSOME BEHAVIOUR IN COMSTOCKIELLA SABALIS (COMST.) (coc- 



coidea-diaspididae). (Abs.) Genetics 42 : 362-363. 

 Genetic system seems to be a modification of lecanoid system. 



1958 HAPLOIDT IN THE DIASPIDIDAE CONFIRMATION OP AN EVOLUTIONARY 



hypothesis. Evolution 12: 115-116. 

 Brief discussion of subject. 



1958a THE CHROMOSOMES OF AN ORTHEZIA SPECIES (COCCOIDEA-HOMOPTERA). 



Cytologia 23: 429-434, illus. 

 No sexual differences noted in chromosomes of a species of praelonga group* 



1959 LECANOID CHROMOSOME BEHAVIOUR IN THREE MORE FAMILIES OF THE 



coccoidea (homoptera). Chromosoma [Berlin] 10: 278-300, illus. 

 Chromosome behavior at spermatogenesis described for Cerococcus 

 quercus Comst., Conchaspis lepagei Hempel, and Tachardiella sp. 



1960 SPONTANEOUS CHROMOSOME FRAGMENTATION IN THE ARMORED SCALE 



insects (coccoidea-diaspididae). Jour. Morph. (Wistar Inst. Anat. 

 and Biol.) 106: 159-185, illus. 

 Discussion of subject indicated by title. 



1960a chromosome aberration in two aspidiotine species of the armored 

 scale insects (coccoidea-diaspididae). Nucleus [Calcutta] 3: 

 [135H60, ihus. 



Studies of Aspidiotus cryptomeriae Kuw. and Tsugaspidiotus pseudo- 



meyeri (Kuw.). 



1961 fracture and fusion of coccid chromosomes. Nature 191: 1419, 



1420. 

 Discussion of subject indicated in title. 



See also Bennett, F. D., and Brown, S. W. 



Brown, S. W., and Bennett, F. D. 



1957 ON SEX determination in the diaspine scale pseudaulacaspis penta- 

 gona (targ.) (coccoidea). Genetics 42: 511-523, illus. 

 Males haploid, females diploid; other critical observations. 



Brown, S. W., and DeLotto, G. 



1959 cytology and sex ratios of an African species of armored scale 

 insect (coccoidea-diaspididae). Amer. Nat. 93: 369-379, illus. 

 Report on chromosome condition in Aspidiotus simulans DeL. 



Brown, S. W., and McKenzie, H. L. 



1962 evolutionary patterns in the armored scale insects and their 



allies (homoptera: coccoidea: diaspididae, phoenicococcidae, 

 and asterolecaniidae). Hilgardia 33: [141]-170a, illus. 

 Discussion of probable phylogenetic relationships of various coccid groups 

 and genera currently associated in Diaspididae and Phoenicococcidae. 



Brown, S. W., and Nelson-Rees, W. 



1961 radiation analysis of a lecanoid genetic system. Genetics 46: 

 [983]-1007. 

 Confirms, through radiation treatment of parents, previous hypotheses 

 respecting origin and subsequent development of differentiated chromo- 

 some sets. 



Buchner, P. 



1956 NEUE BEITRAGE ZUR KENNTNIS DER COCCIDENSYMBIOSEN. GreifSWald 



Univ. Wiss. Ztschr. 5: [267]-278, illus. 

 Report on recent work on coccid symbiosis. 



1957 ENDOSYMBIOSESTUDIEN AN SCHILDLAUSEN. 4. HIPPEOCOCCUS, EINE MYR- 



mekophile pseudococcine. Ztschr. f. Morph. u. Okol. Tiere 45: 



379-410, illus. 

 Reports development of special area for reception of micro-organisms, 

 but lack of any trace of these. 



