24 MUSEUM OF COMPARATIVE ZOOLOGY. [Jan. 



Dumeril, Prof. 4 specimens, 2 species. 



Gegenbaur, Prof. 1 specimen, 1 species. 



Haeckel, Prof. 62 specimens, 18 species. 



Naples Museum, Prof. Panceri. 22 specimens, 9 species. 



Salmin, C. L. 14 specimens, 3 species. 



Report on the Arliculata, by P. R. Uhler. 



INSECTS. 



During the past year the collections of insects have been 

 duly cared for and every opportunity has been embraced to add 

 new and desirable species, so that we can speak with confi- 

 dence of the ever-increasing value of these collections as time 

 advances. 



It has been a special object with me to increase the duplicate 

 series, so that perfect specimens and full series of the insects 

 of this country could be employed in our exchanges. I have 

 accordingly succeeded in bringing together, by my own collecting 

 and through the kindness of friends, large numbers of fine speci- 

 mens, which have been pinned, expanded and made ready for use. 



In developing our already extensive collections, it became 

 necessary to establish a full, general, systematic collection of 

 types, to be ready for reference in determining the species to 

 be sent abroad. With this view, I have determined and veri- 

 fied the identifications of a large number of North American 

 Coleoptera, the names of which can now be depended upon for 

 accuracy. We are also indebted to the kindness of Dr. John 

 L. LeConte for the identification of many small and difficult 

 species. Many foreign species of Lepidoptera, belonging to 

 our collections, have also been identified through the favor of 

 Mr. Tryon Reakirt, of Philadelphia. In the meantime, many 

 domestic and foreign insects of the other sub-orders have been 

 determined, and for this purpose I spent a few weeks in-com- 

 paring our specimens with the collections of named species in 

 Philadelphia. 



The additions to the collections of insects since the last 

 report have been mainly derived from the expedition to Brazil, 

 so liberally provided for by Mr. Thayer. The number of species 

 is less than was recorded during the preceding year, but the 



