22 



above 3,600 species represented in the collection, — about the half 

 of all species known. The Cave Insects have been rearranged, on 

 account of the additions made to our collections from the Peabody 

 Academy ; and. the Tineina of Mr. V. Chambers also, on account 

 of the identifications of Prof. H. Prey, in Zurich, and of Lord 

 Walsingham, in England. 



The Embidina, Nemoptera, and Micromus of the collection have 

 been monographed and brought in order by the Assistant, as well 

 as a part of the Odonata. 



Several parts of the collection have been studied (generally at 

 the Museum) by Dr. G. H. Horn, Philadelphia ; Mr. N. Blan- 

 chard, Lowell, Mass. ; Rev. Geo. D. Hulst, Brooklyn, N. Y. : Mr. 

 P. R. Uhler, Baltimore, Md. ; Mr. J. B. Smith, Washington, D. C. ; 

 Mr. S. Henshaw, Boston, Mass. ; and Mr. G. Jack, Montreal. 

 The results of their studies have been embodied by them in 

 various publications. 



1. Myriapoda Musei Cantabrigiensis. Pars I. Chilopoda, by Dr. Mei- 

 nert. In Proc. Araer. Philos. Soc, April, 1886, No. 122, Vol. XXIII. 



2. A Revisional Monograph of Recent Ephemeridae. By Rev. A. E. 

 Eaton. Part IV. Trans. Linn. Soc. London, Vol. III., December, 1885. 



3. Die Spinnen Amerikas ; Therididae, zweite Halfte, von Graf E. 

 Keyserling. Niirnberg, 1886. 4to. 



The publications of the Assistant during the last year are : 

 Bibliographical Contributions, by J. Winsor, p. 34, No. 63 to 83 ; 

 besides the beginning of a monograph of Hemerobidae, Parts I. 

 and II., printed in May for the Proceedings of the Boston Natural 

 History Society, but not yet distributed ; and some papers in the 

 Entomologica Americana, Vol. II. 



The collection received from the Peabody Academy has been 

 carefully studied to ascertain the types of described species now 

 belonging to the Cambridge Museum. Though this work is only 

 begun, I have to state that the number of types is very much 

 larger than it was supposed to be. 



The types of Prof. A. S. Packard are the first ones to be ascer- 

 tained. His types of the Phalagnidas are at hand, except 15 (not 

 13, as stated in my last Report), — 11 of them described from 

 specimens belonging to other entomologists. Prof. A. S. Packard 

 has kindly offered to fill these gaps. Although all his previous 

 papers on Phalaenidae are recorded in his Monograph, I have 



