REPORT OP NATIONAL MUSEUM, 1924 51 



bureau, visited Laysan, Midway, Johnson, Wake, and other islands 

 in the Pacific and made large collections, part of which have already 

 been transferred to the Museum. 



Dr. Casey A. Wood, a valued collaborator of the division of birds, 

 made a three-months visit to the Fiji Islands. During his stay there 

 he enlisted the help of several native collectors, and secured overi 

 200 skins of birds from Viti Levu, Vanua Levu, and Kandavu Is- 

 lands, thus supplementing very importantly the Museum series from 

 that region, adding many species hitherto unrepresented. Through 

 his arrangement with his local assistants to continue the work in 

 localities he himself was unable to visit, it is hoped the Museum 

 will profit further. 



C. R. Aschemeier, during the summer of 1923, visited the loweri 

 Amazon region, Brazil. He returned shortly after the beginning of 

 the fiscal year, his trip resulting in adding 105 specimens, including 

 several species new to the Museum. 



During the summer of 1923, Prof. T. D. A. Cockerell and his wife 

 undertook at his own expense, an expedition into Japan and the op- 

 posite coast of the maritime province of eastern Siberia, principally 

 for the purpose of collecting and studying insects. All of the insect 

 material was forwarded to the Museum, where it has been mounted 

 and labeled for study and partly sent to specialists for identifica- 

 tion. After the material has been worked up and reported on, it is 

 Professor Cockerell's intention to deposit it in the National Museum. 



Dr. H. G. Dyar, custodian of Lepidoptera, during the spring of 

 1923, made a trip financed by himself to Panama, primarily for the 

 study of larvae of mosquitoes. The trip was undertaken in company 

 with Mr. R. C. Shannon, of the Bureau of Entomology, whose ex- 

 penses were paid by the bureau. Besides an extensive collection of 

 adults and larvae of mosquitoes, many thousands of miscellaneous in- 

 sects were obtained. In the early part of 1924, Dr. T. E. Snyder, 

 of the Bureau of Entomology, went to Panama and secured a large 

 material ©f termites besides miscellaneous insects which will be added 

 to the National Collections. Doctor Dyar shortly afterwards started 

 for the western coast of the United States, studying larvae of mos- 

 quitoes with the hope of securing the immature stages of species 

 not represented in our collection. This expedition was also at his 

 own expense. 



Dr. J. M. Aldrich, associate curator of insects, has been collecting 

 dipterous flies throughout the high altitudes and on the west coast 

 of the United States since early in June of the present year and will 

 continue for some time into the next fiscal year. 



During the year Dr. William M. Mann, of the Bureau of Ento- 

 mology, undertook several expeditions into Mexico, Panama, Co- 



