210 A. R. Grote—Sphingide of North America. 
Art. XXIV.—The Sphingide of North America; by A. R. 
GrRoTE, A.M. 
Tue readers of this Journal may be interested in a brief 
review of the present knowledge of our Sphingide, and the 
contrast it offers with that contained in Dr. Harris’s article, 
published in this Journal, II, vol. xxxvi, p. 282, et seq. 
Dr. Harris’s paper bears the title of ‘‘ Descriptive Catalogue of 
the North American Insects belonging to the Linnzean genus 
Sphinx,” and certain forms were included by him which now 
are placed in distinct families and are not considered in the 
present paper. 
Dr. Harris divided the “Sphinges legitima:” into three fami- 
lies of equal value, viz: Sphingiade, Macroglossiade and Aige- 
riade. he last is not considered a distinc: family in the La- 
treillean sense. It varies by the larval habit and structure, no 
less than in peculiarities of the imago, from all known families 
of Lepidoptera, whereas the two former of Dr. Harris's ‘ Fami- 
lies,” possess only comparative distinctions of subordinate 
value, such as the absence or presence of the caudal tuftings, to 
authorize their separation. The larval structure is essentially 
similar, as all the details of the immature stages. 
The issue of Dr. Harris’s article was followed, in 1859, by an 
elaborate monographic paper from the pen of the late Dr. 
Clemens, in which the structure of the group was fully dis- 
cussed, and the family term Sphingide used in the sense 10 
- * . 1 
investigated, with the effect of establishing the synonymy since 
adopted in this country, and, so far as our fauna is concerned, 
world as far as n. In the present paper the writer en: 
deavors to show the probable origin of the various Sphingid 
