XXxii, '21] ENTOMOLOGICAL NEWS 249 



of death. Experimental studies on the duration of life. 91, xiii, 

 L44-64. Pierce, W. D. Lectures in applied entomology. Ser. 1, 

 Part 1, No. 2, Office equipment. Popenoe, P. Biological control 

 of destructive insects. 68, liv, 113-4. Pratt, J. S. Mr. Fred Knock's 

 method of mounting heads of insects without pressure. (Jour. R. 

 Micro. Soc., 1!>21, 141-6.) Williams, C. B. Records of insect mi- 

 grations in tropical America. 36, 1920, 14<>-65. 



ANATOMY, PHYSIOLOGY, ETC. van Bemmelten, J. F.- 

 Das farbenmuster der mimetischen schmetterlinge. 52, Hi, 209-77. 

 Bordas, L.-- Etude antomique et histologique de 1'appareil digestif 

 des lepidopteres adultes. (An. Sci. Nat., Paris, Zoo., iii, 175-250. I 

 Sobre la estructura y funcionamiento de los estigmas en el ortoptero 

 Blatta orientalis. (R. Soc. Espan. Hist. Nat., 1921, 24-41.) Brecher, 

 L. Die puppenfarbungen des kohlweisslings, Pieris brassicac. 

 (Archiv f. Entwickl. d. Organ., xlviii, 1-138.) Breitenbecher, J. K. 

 The genetic evidence of a multiple (triple) allelomorph system in 

 Bruchus and its relation to sex-limited inheritance. (Genetics, vi, 

 115-90). Bugnion, E. Les parties buccales de la blatte et les mus- 

 cles qui servent a les mouvoir. (An. Sci. Nat. Paris, Zool., iii, 41- 

 108.) Busck & Heinrich On the male genitalia of the microlepi- 

 doptera and their systematic importance. 10, xxiii, 145-52. Buxton, 

 P. A. The external anatomy of the Sarcoptes of the horse. On the 

 Sarcoptes of man. 64, xiii, 114-45; 146-51. Carothers, E. E. 

 Genetical behavior of heteromorphic homologous chromosomes of 

 Circotettix. 70, xxxv, 457-83. Ceballos, G. Nota sobre un himen- 

 optero ginandromorfo. (R. Soc. Espan. Hist. Nat., l'.)21. 79-si.) 

 Charlton, H. H. The spermatogenesis of Lepisma domestica. 70, 

 xxxv, 381-423. Crampton, G. C. A further comparison of the wings 

 of Zoraptera, psocids, and aphids, from the standpoint of phylogeny. 

 4, liii, 110-17. The origin and homologies of the so-called "super- 

 linguae" or "paraglossae" (Paragnaths) of insects and related arthro- 

 pods. 5, xxviii, 84-92. The sclerites of the head, and the mouth 

 parts of certain immature and adult insects. 7, xiv, 85-110. Tin 

 terminal abdominal structures of the primative Australian termite. 

 Mastotermes darwinensis. 36, 1920, 137-45. Dahl, F. Die abstain- 

 in in. g der skorpione und das erste auftreten echter atmungsorgane. 

 52, Iii, 304-10. Dehorne, A. I.e mechanisme de la metaphase et de 

 1'anaphase somatiques et ses consequences chez Corethra plumi- 

 cornis. 69, dxxii. 1 084-7. Dixey, F. A. Sexual dimorphism. 35, 

 1920-21. 12-23. Federeley, H. Die bedeutung der polymeren i 

 toren fur die xeiclinung der lepidopteren. ( Mereditas, Lund, i, ..'21 69.) 

 Garman, H. Some neglected setae of lepidopterotis larvae. 7, xiv. 

 115-19. Giffard, W. M. The systematic value of the male genitalia 

 of Delphaeidae ( 1 lomoptera). 7, xiv, 135-40. Hasebrock, K.- Dii 



