DR. HERMANN AUGUST HAGEN 
75 
States, I sent him all the material I could get hold of. Besides 
the Neuroptera of my own collecting, an important contribution 
was the rich collection of the Odonata from Pecos River, Western 
Texas, made by the Exploring Expedition of Capt. J. Pope, U. S. A., 
which the Smithsonian Institution upon my suggestion sent to Dr. 
Hagen. The result of these contributions was his important publi¬ 
cation, “ Synopsis of the Neuroptera of North America,” Washing¬ 
ton, Smithsonian Institution, July, 1861. On the reverse of the 
title page the “Advertisement” of Prof. Joseph Henry, Secretary of 
the Institution, says: “ The manuscript of this work was furnished 
by Dr. Hagen in Latin, and it has been translated into English by 
Mr. P. R. Uhler of Baltimore. To him and to Baron R. Osten 
Sacken the Institution is under obligations for the careful examina¬ 
tion and correction of the proof sheets.” In the Preface Dr. Hagen 
mentions, among the collections which he received, “ the very nu¬ 
merous species collected by Baron Osten Sacken in different parts 
of the United States, particularly at Washington, at Trenton Falls, 
at Savannah and Dalton in Georgia, at Berkeley Springs in Vir¬ 
ginia, in Florida, in Cuba, on the St. Lawrence River, and at 
Chicago.” 
In a letter from Konigsberg, dated November 15,1859, Dr. Hagen 
acknowledged the arrival of one of my consignments, and added: 
“It may interest you to have a survey of all your consignments, 
of which I have kept an accurate account, except the first, the 
number of specimens of which is given approximatively: — 
“ First consign, from you about 137 spec., from the Smiths. Inst, about 170; total, 300 
“ Second, Nov., 1858, 
“ Third, April, 1859, 
“ Fourth, June, 1859, 
“ Fifth, Oct., 1859, 
Total, 
260 
96 
38 
275 
806 
other persons 
431; 
691 
96 
38 
275 
1400 
“ The specimens preserved in spirits were not counted, so that 
the total reaches far beyond 1500 specimens.” 
Among these materials was the very rare Panorpid, Metope tuber Newm., 
which I had had the good fortune to obtain in both sexes, the very extraordinary 
male, with its immense forceps, having been unknown before. Hagen called it 1 
“perhaps the most remarkable of all hitherto known Neuroptera.” 
1 “ Synopsis,” p. 249. 
