36 BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 4, NOS. 1-2. 



'92. Latter, Oswald. 



The secretion of potassium hydroxide by Dicranura 

 vinula and the emergence of the imago from the 

 cocoon. Trans, ent. Soc. Lond. p. 287. 

 '95. Latter Oswald. 



Further notes on the secretion of potassium hydroxide 

 by Dicranura vinula and similar phenomena in other 

 lepidoptera. Nature, 1895, and Trans. Ent. Soc. 

 Lond. 

 '87. Loman, J. C. C. 



Freies Jod als Driisensekret. Tijdschr. Nederl. Dierk. 

 Ver. Deel i, 1887. 

 '95. Lutz. K. G. 



Das Blut der Coccinelliden. Zool. Anzeiger, p. 244,255. 

 "86. Marx, Geo. 



Notes on Thelvphonus. Entomologica Americana, vol. 

 2, 1886- 1887. 

 '74. Mayer, Paul. 



Anatomic von Pyrrhocoris apterus. Archiv f. Anat. 

 Phys, etc. pp. 313-347- 

 '92. Meldola, Raphael. 



Note on Dicranura larva. Trans Ent. Soc. Lond. 1892. 

 98. Packard, A. S. 



Text book of Entomology. New York, Macmillan Co. 



PP- 357-397- 

 '59. Say. Thos. 



Complete writings, edited bv J. L. LeConte. 

 '48. Siebold, Carl Theo. 



Lehrbuch der vergleichenden Anatomic der wirbellosen 

 Thiere. 

 '82. Weber, Max. 



Ueber eine Cyanwasserstofifsaure bereitende Driise. 

 Archiv f. mik. Anat, XXL pp. 460-475. 

 '90. Wheeler, Wm. M. 



On the appendages of the first abdominal segment of 

 embryo insects. Trans. Wise. Acad. Sci. etc. vol. vii. 

 '90a. Wheeler, Wm. M. 



Hydrocyanic acid secreted by Polydesmus virginiensis. 

 Psvche V. p. 422. 

 '84. Williston, S. A. 



A protective secretion of Eleodes ejected from anal 

 gland. Psyche, iv. p. 168. 



