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. Frey, 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 atiaiea (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. Amer. Philos. Soc., April, 1886, No. 122, Vol. XXIII. 
2. A Revisional Monograph of Recent Ephemerida. By Rev. A. E. 
Eaton. Part IV. Trans. Linn. Soc. London, Vol. ITI., December, 1885. 
3. Die Spinnen Amerikas; Therididae, zweite Hiilfte, von Graf E. 
Keyserling. Niirnberg, 1886. 4to. 
The publications of the Assistant during the last year are: 
Bibliographical Contributions, by J. Winsor, p. 84, No. 63 to 83; 
besides the beginning of a monograph of Hemerobide, 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 Phalenidz are at hand, except 15 (not 
18, 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 Phalenide are recorded in his Monograph, I have 
