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



Pierantoni, U. — Continued. 



1914 STUDII SULLO SVILUPPO D'lCERYA PURCHASI MASK. PARTE II. ORIGINE ED 

 EVOLUZIONE DEGLI ORGANI SESSUALI MASCHILI. — ERMAFRODITISMO. 



parte in. osservazioni di embriologia. Arch. Zool. Ital. 7: 27-46, 

 243-274, illus. 



1936 GLI STUDII SULLA ENDOSIMBIOSI EREDITARIA NELLE ORIGINI E NEI PIU 



recenti sviluppi. Arch. Zool. Ital., Sup., Attual. Zool. 2: 137-195, 

 illus. 

 Brief summaries in French, English, and German; 6 coccids mentioned. 



Pierce, F. N., sec. 



1891 [exhibition of coccids.] Ent. Monthly Mag. 2 : 334. 



Report on exhibition, including 6 named new species by R. Newstead. 



Pierre, l'abbe 



1928 deuxieme contribution a l'etude des coccides du departement de 

 l'allier. Rev. Sci. du Bouronnais, No. 1, p. 3-8. 

 List of 30 coccids with collection data. 



Piltz, H. 



1952 (hom. cocc.) beitrag ZUR KENNTNIS DER coccidenfauna von ham- 

 burg. Bombus No. 70/71: 303-304. 

 Lists 11 species with brief notes. 



Piza, M. T., see Lepage, H. S., and Piza, M. T. 



Planchon, G. 



1864 le kermes du chene aux points de vue zoologique, commercial & 



pharmaceutique. Montpellier, 47 p. Thesis [Pharmacist, 1st class] 



Ecole Super, de Pharmacie de Montpellier. 



Proposes and describes as new Chermes [Kermes] vermilio, C. emeriti, 



C. bauhini, Coccus gramuntii, C. pulvinatus; mentions Coccus baphica. 



Plank, H. K., see Cressman, A. W., and Plank, H. K. 



Plumb, G. H. 



1950 a new and serious insect pest of red pine. Conn. Agr. Expt. Sta. 

 Spec. Cir. (Feb.), 4 p., illus. 

 Matsucoccus, unidentified sp. [resinosae Bean and Godwin, 1955.] 



Podtiaguin, B. 



1941 NOTULAE ENTOMOLOGICAE 2. — UNA NUEVA ESPECIE DEL GENERO MAR- 

 GARODES GUILD., HALLADA EN EL CHACO PARAGUAYO. Soc. Cient. del. 



Paraguay Rev. 5 (3) : 59-64. Also in Rev. de Agr., Com e Indus. 

 (Asuncion) 2 (7) : 40-44. 

 M. gimenezi n. sp.; M. vitium discussed. 



Poisson, R., and Pesson, P. 



1938 l'appareil circulatoire d'icerya purchasi mask, (coccidae mono- 



phlebinae). Soc. Zool. de France Bui. 62: 431-435, illus. 

 Description of heart. 



1939 CONTRIBUTION L'ETUDE DU SANG DES COCCIDES (HEMIPTERES HOMOP- 



TERES STERNORHYNCHA) . LE SANG DE PULVINARIA MESEMBRYANTHEMI 



vallot. Arch, de Zool. Expt. et Gen. (Notes et Revue No. 1) 81: 

 23-32, illus. 

 Description of the various elements found in the blood. 



Polejaeff, W., see Smirnov, E., and Polejaeff, W. 



POLLISTER, P. F. 



1937 THE STRUCTURE AND DEVELOPMENT OF WAX GLANDS OF PSEUDOCOCCUS 



maritimus (homoptera, coccidae). Quart. Jour. Micros. Sci. 80: 



127-152, illus. 

 A detailed study of the histology and development of 3 types of 

 multicellular glands. 



