40 MISC. PUBLICATION 1281, U.S. DEPT. OF AGRICULTURE 

 De Lotto, G. — Continued 



1968a SECOND CONTRIBUTION TO THE KNOWLEDGE OF THE AFRICAN COCCOIDEA 



(homoptera). Ent. Soc. South. Africa Jour. 31: 83-86, illus. 

 1 n. comb.; 1 n. syn.; new host and locality records. 



1969 THE MEALYBUGS OF SOUTH AFRICA (HOMOPTERA: PSEUDOCOCCIDAE) , 



II. [Afrikaans summary.] Repub. So. Africa Dept. Agr. Tech. 



Serv. Ent. Mem. 20, 30 p., illus. 

 1 n. gen.; 9 n. spp.; 1 n. comb.; records of other spp. ; new locality 

 records. 



1969a ON A FEW OLD AND NEW SOFT SCALES AND MEALYBUGS (HOMOPTERA: 



COCCOIDEA). Ent. Soc. South. Africa Jour. 32: 413-422, illus. 



Ceroplastes hololeucus, Coccus acrossus, Gascardia constricta, 



Saissetia neglecta n. spp.; 1 n. comb.; 1 n. status; new host and 



locality records; introduces "clistostomatic ducts" for tubular ducts. 



1969b a new genus of wax scales (homoptera: coccidae). [Italian 



summary.] Portici Lab. di Ent. Agr. "Filippo Silvestri" Bol. 



27: 210-218, illus. 

 Cerostegia n. gen. includes C. floridensis (Comstock, 1881) n. comb.; 

 japonica (Green, 1921) n. comb., rufa (De Lotto, 1966) n. comb.; 

 all transferred from Ceroplastes. 



De Santis, M. A. 



1967 APUNTES PARA LA BIOLOGIA DE LA "COCHINILLA COMA" LEPIDOSAPHES 



beckii newm. en el delta del Parana. Delta del Parana In- 

 vest. Agr. An. 6 (10-11) (1966/1967) : 35-44, illus. 

 Study includes meteorological data for 1953-62. 



Dick, J. 



1969 the mealybugs of sugar cane. In Williams, J. R., et al., Pests 

 of Sugar Cane. I-XII + 568 p. Elsevier Pub. Co., Amsterdam, 

 London, New York. (Coccids p. 343-365.) 

 Primarily biology, parasites, and predators. 



Dietz, S. M., and Harwood, R. F. 



1960 HOST RANGE AND DAMAGE BY THE GRASS MEALYBUG, HETEROCOCCUS 



graminicola. Jour. Econ. Ent. 53 : 737-740, illus. 

 Record coccid from 67 spp. and 1 var., representing 23 gen. of 

 Gramineae. 



Dikshith, T. S. S. 



1962 CHROMOSOME NUMBER OF LACCIFER LACCA (KERR) (KUSMI STRAIN) 



homoptera — coccoidea. Current Sci. [India] 31: 383-384, illus. 



Diploid chromosome number of 18 found in different types of cells. 



1964 chromosome number and the sperm structure of the yellow 



lac insect, laccifer lacca (kerr), lacciferidae — coccoidea. 



Indian Jour. Ent. 26 : 127-129, illus. 

 Diploid chromosome number of 18 observed in all cells. 



1964a SPERMATOGENESIS IN LACCIFER LACCA (KERR) LACCIFERIDAE: COC- 



ciidea [!]. A correction. Indian Jour. Ent. 26: 367-369, illus. 

 Corrects statements of Tulsyan, 1963. 



