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



Schrader, F., and Hughes-Schrader, S. 



1926 haploidy in icerya purchasi. Ztschr. f. Wiss. Zool. 128: 182-200, 

 illus. 

 Description of cell structure. 



Schrader, H. L. 



1863 OBSERVATIONS ON CERTAIN GALL-MAKING COCCIDAE OF AUSTRALIA. Ent. 



Soc. N. So. Wales Trans. 1 : 1-6, illus. Similar information con- 

 densed in Zool.-Bot. Gesell. Wien. Verhandl. 13 : 189-191, 1863. 



Brief review of some Australian gall coccids; genus Brachyscelis and 



several new species mentioned. 



1863a FURTHER COMMUNICATION ON THE GALL-MAKING COCCIDAE. Ent. Soc. 



N. So. Wales Trans. 1 : 6-8, illus. Similar information condensed 

 in Zool.-Bot. Gesell. Wien, Verhandl. 13 :_ 191-192, 1863. 



Proposes Brachyscelis, Opisthoscelis, Ascelis; indicates 0. gracilis and 



O. subrotanda and A. praemollis as new species. 



SCHRANK, F. VON P. 



1776 beytrage zur naturgeschichte. Augsburg, Veith. 137 p. (48), illus. 

 Coccus abietis n. sp. 



1781 COCCUS, gallinsect. In Enumeratio Insectorum Austriae Indigenorum 

 p. 295-296, illus. 

 Describes as new Coccus mali, C. visci, C. co status; discusses 4 other 

 described coccids. 



1801 fauna boica, v. 2, pt. 1, 374 p. (143-148). Nurnberg. 



Proposes 13 new names in Coccus (some not coccids) ; discusses 8 

 other previously described coccids. 



Schuder, D. L. 



1954 additions to the coccoidea or scale INSECTS OF INDIANA (homoptera) . 

 Ind. Acad. Sci. Proc. (1953) 63: 171-176. 

 Adds 5 pieces to State list. 



Schulze, P. 



1915 [preservative for coccids.] Deut. Ent. Ztschr, 1915: 204-205. 

 Recommends mixture of 200 cc. glycerin, 200 cc, dist. H 2 0, 1 gr. car- 

 bolic acid crystals for plant material bearing coccids. 



Schumacher, F. 



1917 eine neue schildlaus aus Brandenburg. Deut. Ent. Ztschr. 1918, 

 h. 4: 429-430. 

 Ceroputo elvirae-castneri n. sp. [nom. nud.] 



1919 DIE SCHILDLAUSGATTUNG ERIOPELTIS IN NORDAMERIKA. Deut. Ent. 



Ztschr. 1919: 119-120. 

 States opinion that N. American Eriopeltis festucae is not identical 

 with European. 



Schwartz, W. 



1924 UNTERSUCHUNGEN UBER DIE PILZSYMBIOSE DER SCHILDLAUSE. Biol. 



Zentralbl. 44: 487-528, illus. 

 Description, occurrence, and development of symbionts in 10 lecanine 

 coccids. 



Schweig, C, and Grunberg, A. 

 1936 the problem of black scale (chrysomphalus ficus, ashm.) in 

 Palestine. Bul. Ent. Res. 27: 677-714, illus. 

 Detailed report on local biological and physiological behavior. 



Scott, C. L. 



1952 THE scale insect genus aulacaspis in EASTERN ASIA (homoptera: 

 coccoidea: diaspididae) . Microentomology 17: 33-60, illus. 

 List of names placed in Aulacaspis; key and descriptions for 15 

 species, 4 new. 



