'i7'2 n.\vENP()i;r academy oy natukai, soieni^ks. 



fofJcx poMipCK, Say, and G. xuhulata, Say) are described in a foot note on page 

 3, Vol. II. These specimens were collected at the base of the mountains 

 near the Platte River, and therefore within a few miles of where I found my 

 specimens— all of which correspond perfectly with the description of G. 

 pdU/'pcs, and without doubt that is the correct name for them. 



In the report of Marcy's Expedition, Girard gives a very full description 

 of G. xiibnlatd; Say. He had but a single specimen collected somevvliere in 

 Arkansas. This specimen I saw at the Academy of Natural Science, in Phil- 

 adeli)hia, and is certainly distinct from my Colorado specimens of G. pnllipes. 

 The above are all the references I can find in regard to the Holptigir}<v of the 

 Ignited States. 



Letter to Dr. II. A. Hagen, Cambridge, Mass.: 



Davenport, January 3J)th, 1877. 



* * * 1 have continued my interest in the Holpuqldxv, and succeeded 

 al)0ut as well as I could e.xpect with my poor facilities, and I hope you will 

 allow me to ask of you a little help. 



I have so far collected of this family five specimens in Colorado (one at 

 Denver, two at Valmont, two at Cancm (!ity). These I have determined to be 

 the species described by Say as (raleodes pallipcs, which he collected at the 

 base of the mountains, about fifteen miles trom Denver (see Narrative Long's 

 Expedition to Rocky Mountains, by Dr. James, Philadelphia, 1823, page :], 

 Vol. II) where G. jiaUipes and G. mhidata are described in a foot note. The 

 description applies perfectl}^ and the locality being almost precisely the 

 same, I think I am quite safe in the determination. From an examination 

 of the joints of the tarsus I am inclined to refer my specimens to the mod- 

 ern genus Gliiiu'ti, and thi.s is the genus to which you referred it from my 

 drawing in 1872. 



In your library, I found a paper by Mr. Butler, of the British Museum- 

 in the "Transactions Entomological Section, London, 1873," "A list of the 

 species of Galeadides:' He enumerates fifty -two species distributed among 

 five genera, Iiha.i\ ^Sllorus, Galeodea, Solpnga and GIulhh- Of these, Gluvia 

 fwith two exceptions) seems to be confined to the American continent, while 

 all the others are old world species. Twelve or thirteen species of Gluri<t 

 are enumerated of which seven were described by Kocli, and others by La- 

 treille, Gervais, and Lucas. I copied a list of the species, but for want of 

 time T neglected to make a note of tiie reference. This I regret, for 1 should 

 like much to know wiiere the species wei-e described. Most of them, I sus- 

 pect will be found in Koch's ' Die Arachniden ' and Walckenaer'sand Gervais 

 'In.sectes Apteres.' The only library that] possesses all these works in this 

 countrv is that of the Philadelphia Academy, but that is nearly one thousand 

 miles away. I must try and buy them for myself, if I can find them for sale 

 anywhere. 



In the Museum Comp. Zoology, 1 saw three specimens (two fnmi Florida, 

 one from California). These apparently belonged to two species, both of 

 them distinct from my Colorado specimens. 



