22 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I39 



in his department. I acknowledge with sincere appreciation the assist- 

 ance of Dr. Ing° Matias Reyes Valdivieso for rapid and clever 

 adjustment of my optical equipment to one of the microscopes of 

 the department. 



I wish to thank Dr. Remington Kellogg, Director of the United 

 States National Museum ; Dr. Waldo L. Schmitt, former head curator 

 of the department of zoology, for authorization to have the material 

 determined in the Museum ; and Dr. J. F. Gates Clarke, curator of 

 the division of insects, for collecting and mailing the data. I also 

 wish to express my gratitude to the following specialists for identifica- 

 tion of the specimens: O. L. Cartwright, Dr. E. A. Chapin, Dr. J. 

 Cooreman, G. Fagel, W. D. Field, Dr. A. B. Gurney, Dr. Ch. Jeuni- 

 aux, K. V. Krombein, Dr. V. Lallemand, Dr. J. C. Lutz, Miss S. Par- 

 fin, Dr. J. G. Rozen, Miss Louise M. Russell, C. W. Sabrosky, 

 Dr. M. R. Smith, T. J. Spilman, George B. Vogt, Miss Luella L. 

 Walkley, Miss Rose Ella Warner, Dr. C. Willemse, Dr. D. A. Young. 



REFERENCES 

 Gregoire, Ch. 



1951. Blood coagulation in arthropods. II. Phase-contrast microscopic 



observations on hemolymph coagulation in sixty-one species of 



insects. Blood, vol. 6, pp. 1173-1198. 



1953. Blood coagulation in arthropods. III. Reactions of insect hemolymph 



to coagulation inhibitors of vertebrate blood. Biol. Bull., vol. 104, 



PP- 372-393- 

 1955a. Blood coagulation in arthropods. V. Studies on hemolymph coagu- 

 lation in 420 species of insects. Arch. Biol., vol. 66, pp. 103-148. 

 1955b. Blood coagulation in arthropods. VI. A study by phase-contrast 



microscopy of blood reactions in vitro in Onychophora and in 



various groups of arthropods. Arch. Biol., vol. 66, pp. 489-508. 

 1957. Studies by phase-contrast microscopy on distribution of patterns of 



hemolymph coagulation in insects. Smithsonian Misc. Coll., vol. 



134, PP- I-35- 

 Gregoire, Ch., and Florkin, M. 



1950. Blood coagulation in arthropods. I. The coagulation of insect blood, 



as studied with the phase-contrast microscope. Physiol. Comp. et 



Oecol., vol. 2, pp. 126-139. 

 Gregoire, Ch., and Jolivet, P. 



1957. Coagulation du sang chez les arthropodes. VIII. Reactions du sang 



et de l'hemolymphe in vitro, etudiees chez 210 especes d'arthropodes 



africains. Inst. Pares Nat. Congo Beige. Expl. Pare Nat. Albert, 



ser. 2, fasc. 4, pp. 1-42. 

 Hardy, W. B. 



1892. The blood corpuscles of the Crustacea, together with a suggestion as 



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