152 ENTOMOLOGICAL NEWS [May, '22 



Record, London. 54 Proceedings of the Biological Society of 

 Washington, D. C. 69 Comptes Rendus, des Seances de 1'Aca- 

 demie des Sciences, Paris. 77 Comptes Rendus des Seances de la 

 Societe de Biologic, Paris. 82 The Ohio Journal of Science 

 Columbus. 90 The American Naturalist, Lancaster, Pa. 100 

 Biological Bulletin of the Marine Biological Laboratory, Woods 

 Hole, Mass. 128 Zeitschrift fur Induktive Abstammungs- und 

 Vererbungslehre, Leipzig. 138 American Museum Novitates, New 

 York. 134 Annales de Biologic Lacustre, Brussels. 



GENERAL. Dean, G. A. How we may increase the effective- 

 ness of economic entomology. 12, xv, 41-53. Kelly, E. G. Co- 

 operation of agricultural colleges with high schools and rural schools 

 in economic entomology. 12, xv, 54-02. Robertson, C. The sun- 

 flower and its insect visitors. (Ecology, iii, 17-21.) 



ANATOMY, PHYSIOLOGY, ETC. Belehradek, J. Experi- 

 ences sur la ccllulase et 1'amylase de la salive chez Dixippus moro- 

 sus. (Arch. Intern. Physiologic, xvii, 260-65.) van Bemmelen, J. F. 

 On the primary character of the markings in Lcpidoptera. (Proc. 

 Sec. Sci., Konink. Akad. Wetensch. Amsterdam, xxi, 58-67.) Bowen, 

 R. H. Studies on insect spermatogenesis. 100, xlii, 53-84. Bridges, 

 C. B. The origin of variation in sexual and sex limited characters. 

 90, Ivi, 51-6!!. Crampton, G. C. A comparison of the first maxillae 

 of apterygotan insects and Crustacea from the standpoint of phylo- 

 geny. 10, xxiv, 65-82. Godoelst, L. Le trimorphisme larvaire des 

 Oestrides. 77, Ixxxvi, 501-4. Kennedy, C. H. The homologies of 

 the tracheal branches in the respiratory system of insects. 82, xxii, 

 84-90. Mohr, O. L. Cases of mimic mutations and secondary 

 mutations in the X-chromosome of Drosophila melanogaster. 123, 

 xxviii, 1-22. Muller, H. J. Variation due to change in the indi- 

 vidual gene. 90, Ivi, 32-50. 



ARACHNIDA, ETC. Gandara, G. El piojo bianco del hombre. 

 (Mem. Soc. "Alzate," Mexico, xxxv, 275-301.) 



Petrunkevitch, A. Tertiary spiders and Opilionids of No. Amer- 

 ica. (Trans. Conn. Ac. Arts & Sci., xxv, 211-79.) 



NEUROPTERA. Lestage, J. A. Etudes sur la biologic des 

 Plecopteres. 134, x, 2:>1-60. Longinus Navas, R. P. Insecta nova 

 (Mem. Ponti. Aecad. Romana, Nuovi Lincei (2), v, 1919, 1-29.) 



HEMIPTERA. Knight, H. H. Nearctic records for species of 

 Miridae known heretofore only from the palaearctic region. 4, liii 

 2HO-8S. Poisson, R. Brachypterisme et apterisme dans le genre 

 Gerris. 69, clxxv, 947-50. 



Dozier, H. L. A synopsis of the genus Stenocranus, and a new 



