Y60 EXPERIMENT STATION RECORf). 



Notes on honeybees gathering honeydew from a scale insect (Physokermes 

 piceae), B. N. Gates iJonr. Econ. Eat., 2 {1909), No. 6, pp. -',66, /,67).— The 

 author observed honeybees gathering honeydew from P. picnr, infesting spruces 

 at Amherst, Mass. This scale is a European species recently introduced in 

 the United States and known to occur at 3 points in Massachusetts. Because 

 of its numerous parasites, the species is not likely to become a serious pest of 

 the spruces. 



Ants, their structure, development, and behavior, W. M. Wheeler (Xcw 

 York, 1910, pp. XXV +663. pJ. 1, figs. 286).— The first part of this work, com- 

 prising chapters 2-10, is largely morphological, while the remaining chapters, 

 11-30, are devoted to ethological considerations. The several appendixes in- 

 clude methods of collecting, mounting, and studying ants; a key to the sub- 

 families, genera, and subgenera of the North American FormicidjB for the identi- 

 fication of the workers; a list of described North American ants; methods of 

 exterminating noxious ants; and an extensive bibliography, which is brought 

 down to the close of 1908. 



Ants collected by Prof. P. Silvestri in Mexico, W. M. Wheelee {Bol. Lah. 

 Zool. Gen. c Agr. R. Scuola Sup. Agr. Poriici. 3 {1909), pp. 228-238).— A\\ an- 

 notated list of 22 forms, of which 4 species and 2 varieties are described as new 

 to science. 



Ants collected by Prof. P. Silvestri in the Hawaiian Islands, W. M. 

 Wheeler {liol. Lah. Zool. (Jen. e Agr. R. SeuoJa Snp. Agr. Portiei, 3 {1909), pp. 

 269-272). — Notes on 7 species, of whicli Ccrapachys {Syscia) silvestrli is de- 

 scribed as new. 



Contributions to the knowledge of the Chalcididfe of Italy, L. Masi {Bol. 

 Lah. Zool. Gen. e Agr. R. Sciiola Sup. Agr. Portiei, 1 {1907-8), pp. 231-295, figs. 

 1,7; 3 {1909), pp. 86-lJ,9, figs. J,5 ; Ann. R. Scuola Sup. Agr. Portiei, 2. ser., 7 

 {1907), pp. 67. figs. 1,7; 8 {1908), pp. 66, figs. //.5).— In the first paper a genus 

 (Atoposoma) and 6 species, representing 5 additional genera, are described 

 as new. In the second paper 1 genus (Pseudocatolaccus) and 7 S]iecies, repre- 

 senting .5 additional genera, are described as new to science. 



Contributions to the knowledge of hymenopterous parasites, F. Silvestri 

 {Ann. R. Scuola Sup. Agr. Portiei, 2. ser., 8 {1908), pp. 57, figs. 62).— This 

 account has been previously noted from another soui'ce (B. S. R., 21, p. 557). 



An account of Prospalta berlesei, particularly of the first stages in its 

 development, F. Silvestri {liol. Lah. Zool. Gen. e Agr. R. Seuola Sup. Agr. 

 Portiei, 3 {1909), pp. 22-28, figs. 6; Ann. R. Scuola Sup. Agr. Portiei, 2. ser., 8 

 {1908), pp. 9. figs. 6). — Bionomic studies of P. herlesei are reported. 



Information on Eurytoma strigifrons, a parasite of Apanteles glomera- 

 tus and Anilastus ebeninus, (J. Martelli {Bol. Lah. Zool. Gen. c Agr. R. 

 Scuola Sup. Agr. Portiei, 3 {1909), pp. 261-261,). — Brief biological notes are 

 given. 



The geographical distribution of American ticks, W. A. Hooker {Jour. 

 Econ. Ent., 2 {1909), No. 6, pp. .',03-.',28) . — In this article lists are given of the 

 species of ticks occurring in the various political .divisions of the New World. 

 The species which occur in the United States have been brought together in a 

 locality list. 



FOODS— HUMAN NUTRITION. 



The glycogen content of beef flesh, I, P. F. Trowbridge and C. K. Francis 

 {Jour. Indus, and Engln. Chetn., 2 {1910), No. 1, pp. 21-21,). — In this study of 

 the quantitative estimation of glycogen and the factors which influence it, animals 

 slaughtered from 2 or 3 to 9 liours after regular morning feeding were used 



