142 ENTOMOLOGICAL NEWS [May, '2O 



Natural History, London. 12 Journal of Economic Entomology, Con- 

 cord, N. H. 15 Insecutor Inscitiae Menstruus, Washington, D. C. 

 17 Lepidoptera, Boston, Mass. 19 Bulletin of the Brooklyn Ento- 

 mological Society. 24 Annales de la Societe Entomologique de France, 

 Paris. 39 The Florida Buggist, Gainesville. 45 Zeitschrift fur wissen- 

 schaftliche Insektenbiologie, Berlin. 46 Contributions to the Natural 

 History of the Lepidoptera of North America. Ed. by Wm. Barnes. 

 47 Neue Beitrage zur systematischen Insektenkunde. Ed. by G. Paga- 

 netti Hummler, Voslau. 51 Archiv fur Mikroskopische Anatomic, 

 Bonn. 52 Zoologischer Anzeiger, Leipsic. 59 Journal of Agricul- 

 tural Research, Washington, D. C. 64 Parasitology, London. 68 

 Science, Lancaster, Pa. 70 Journal of Morphology, Philadelphia. 

 71 Novitates Zoologicae, Tring, England. 82 The Ohio Journal of 

 Science, Columbus. 86 The Quarterly Journal of Microscopical Sci- 

 ence, London. 89 Zoologische Jahrbucher, Jena. 103 Biologisches 

 Centralblatt, Leipzig. 104 Zeitschrift fur Wissenschaftliche Zoologie. 

 Leipzig. 



GENERAL. Anon The Cornell University entomological expedi- 

 tion to South America of 1919-20. 68, 1920, 342. Bervoets, R. E. 

 Contribution a 1'etude du vol des insectes (Ann. Soc. Roy. Zool. et Malacol. 

 Belg., xlviii, 91-126). Dewitz, J. Ueber kunstliche aufebung des 

 spinnens der arthropoden. 52, 1, 27-30. Frost, C. A. Popular and 

 practical entomology. A day's beating. 4, Hi, 25-9. Heikertinger, F. 

 Exakte begriffsfassung und terminologie im problem der mimikry und 

 verwandter erscheinungen. 45, xv, 57-65 (cont.). Die metoke myrme- 

 koidie. Tatsachenmaterial zur losung des mimikryproblems. 103, 

 xxxix, 65-IO2Z. Kathariner, L. Das sehen der insekten. 45, xiv, 

 1919, 301-304. Moznette, G. F. Annotated list of the injurious and 

 beneficial insects of the avocado in Florida. 39, iii, 45-48. O'Kane, 

 W. G. The day's work. The opportunity of the daily contacts in the 

 life of a scientific worker. 12, xiii, 44-59. Pellett, F. C. Adapting 

 system to locality. (Beekeeping.) 12, xiii, 95-99. Pierce, W. D. 

 Commercial and professional entomology the future of our profession. 

 12, xiii, 117-23. Stechow, E. Supplement zu den indices generum 

 von Scudder 1882 und Waterhouse 1902 und 1912. 89, Abt. f. Syst., 

 xiii, 173-88. de la Torre-Bueno, J. R. The growth of insect eggs 

 after oviposition. 19, xv, 24. Walsingham, Lord Obituary notice- 



10, xxii, 41-3. 



GENETICS, ETC. Nachtsheim, H. Der mechanismus der verer- 

 bung. (Naturwiss. Wochenschift, 1919, 105-14.) Schmidt, W. J. 

 Ueber chromatophoren bei insekten. 51, xciii, 118-136. 



ARACHNIDA, ETC. Nut tall, G. H. F. On coloration in ticks. 



11. Regeneration of the mouthparts and legs in ticks. 64, xii, 1-26. 

 Observations on the biology of the Ixodidae. 64, xi, 393-404. 



