DEPARTMENT OF INSECTS. 221 



biologic series occupies 30 boxes and illustrates the life history of 630 

 species. The duplicate series of 1,850 species has been arranged in 116 

 double boxes, and this material is now available for exchange or distri- 

 bution, and is very rich in specimens. 



The Heiniptera-Heteroptera have been rearranged according to 

 Uhler's check list. The collection contains 455 named species from the 

 United States, and occupies 53 boxes. Of duplicates, there are 138 

 species in 14 double boxes. In addition, there are 160 named exotic 

 species in 5 boxes. 



(5) The actual care of the collection. 



The entire collection was gone over twice during the past year and 

 the naphthaline cones renewed where necessary. 



In the annual report for 1888-89 a full list of the special researches 

 then in progress and based upon museum material was given. Of the 

 work there mentioned, that of Mr. W. H. Ashmead upon the Ichneu- 

 moriidae of the National Museum Collection has since been published as 

 No. 779 of the extras from the Proceedings of the National Museum. 

 Mr. L. O. Howard's "Annotated Catalogue of the Insects Collected in 

 1887-'88 " has been published as extra No. 771. Mr. John B. Smith's 

 " Contributions towards a Monograph of the Noctuidse of Temperate 

 North America — Re vision of some Tasniocarapid Genera" has been pub- 

 lished as No. 781. 



Mr. Lawrence Bruner's "New North American Acrididse found 

 North of the Mexicau Boundary," is now published as No. 764. 



During the past year, by a rough estimate, some 15,000 specimens 

 have been added to the collection. Until the work of re-arrangement 

 has been completed it will be very difficult to draw up a tabulated 

 statement of the exact condition of the collection as a whole. It is 

 safe to say that more than 30,000 specimens of the different orders 

 have been added since the publication of the rough tabulated state- 

 ment in the annual report of the curator for 1886-'87. 



The last catalogue entry for June, 1889, is 483 ; and for June, 1890, 

 572. 



