Packard.] Zb4: j-ggpt o Genera. Species. Garnivora [?) 1 1 Artiodactyla 2 3 Perissodactyla 6 7 13 15 For the very extensive and valuable collections of Uinta fossils now-preserved in the Princeton museum, of which a brief account has been given above, we are chiefly indebted to the energy and skill of Mr. Francis Speir, Jr., of New York, who was in charge of the expedition of 1886. Geological Museum, Princeton, N. J., July 12, 1887. On the Systematic Position of the Mallophaga. By A. S. Packard. {Read before the American Philosophical Society, September 2, 1SS7.) The true position of the bird-lice has been in debate for many years, and it is only recently that, in the excellent essay of Grosse,* we have such an exact account of the mouth-parts of these insects, as to enable us to perceive that they have been wrongly referred to the Hemiptera. With the new information aftbrded by Grosse, who does not himself add any general conclusions as to tlie systematic position of the Mallophaga, be-yond stating that they are not Hemiptera, nor allied to the true lice, we have for our own satisfaction made some comparisons with the Psocidaj, to which, among winged insects, the parasites in question seem nearest allied. The name Mallophaga was first proposed by Nitzsch in Germar's "Mag. derEntomologie," iil, 270, 1812. f In Gerstaecker's "Arthropoden" of Peters and Carus' " Handbuch der Zoologie" (1863), where this group is placed with the lice among the Hemiptera, it is stated that Burmeister regarded the Mallophaga as Orthoptera : "Zwiscben welchen und den Hemipteren sie in Anbetracht ihrer Verwandtschaft mit den Lausen ein Uebergangsglied abgeben, ohne fiiglich einer von beiden Ordnungen direct zugewiesen werden zu konnen." In our "Guide to the Study of Insects " (1868), and in subsequent editions, influenced by general usage and also by Melnilcow's arguments, based on embryological studies, we placed the Mallophaga among the Hemiptera, next to the true lice. In most, if not all German, Dutch, and French, as well as English text-books, the Mallophaga, if referred to, are described with the true lice. But, in his article, "Insects," in the "Encyclo-* Beitrage zur Kenntniss der Mallopliagen. Von Dr. Franz Grosse. Zeits. fiir wissen. Zool., xlii, 1885, pp. 530-558. A lengthy illustrated abstract by Prof. G. McCloskey will be found in the American Naturalist, April, 1886, pp. .340-318. 1 1 am indebted to Dr. Hagen for this reference to Kitzsch's paper.
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