276 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 6 



lished in two parts: Series A, Agricultural and Series B, Medical and 

 Veterinary. As the organization and library of the Bureau becomes 

 perfected, the value of this journal to entomological workers cannot be 

 overestimated, when it is remembered that there are no less than 1700 

 periodicals, scientific, agricultural and medical which may contain 

 articles dealing with entomology, but a small proportion of which 

 widely scattered entomologists have the opportunity of seeing or the 

 time to consult. 



An idea of one aspect of the three years work of the original Entomol- 

 ogical Research Committee will be gathered from the fact that the 

 collections received from collectors in tropical Africa and other parts 

 of the world during that time amounted to about 190,000 insects, of 

 which no less than 56,000 were actual or potential disease carriers. 

 The value of this function of the Bureau to entomologists situated in 

 portions of the Empire where there are no collections and little litera- 

 ture to aid in identification will be realised by their more fortunate 

 fellow-workers. 



It has been stated that the Imperial Bureau of Entomology will 

 serve the needs of the British Empire in a manner similar to that in 

 which the United States Bureau of Entomology serves those of the 

 United States. This statement, however, is not correct. Its primary 

 function will be that of an intelligence Bureau, collecting information 

 for the use of British countries supporting it, and assisting entomolo- 

 gists and other officials in those countries in the identification of their 

 material. By these methods which have been mentioned and by the 

 publication of The Revieiv of Applied Entomology, it will furnish a 

 means of assistance and of coordination of effort in the war against 

 noxious insects which will undoubtedly soon make its services inval- 

 uable in the further development of the countries, and especially the 

 tropical and sub-tropical countries, of the British Empire. Inter- 

 national as the scope of its enquiries are, the work of the Bureau 

 cannot but prove to be one of the most potent factors in enabling us 

 to develop the agricultural and other resources of the Empire, and our 

 fellow-workers in non-British countries can avail themselves, through 

 its journal, of some of the fruits of the Bureau's work. 



THE LIFE CYCLE OF LACHNO STERNA TRISTIS FABR. 



By J. J. Davis, Bureau of Entomology- 



Until the present time the life cycle of but one species of Lachnosterna 

 (L. arcuata) has been worked out and recorded in literature. ^ This 



iPublished by permission of Chief of Bureau. 

 aBull. U. S. D. A., Div. Ent. No. 19, n. s., p. 77. 



