NATURAL ENEMIES OF THE LOCUST. 
259 
error he has fallen into in reference to Anabrus haldemanii, Gir. He remarks (page 500) 
that "he [Thomas] further confuses his readers hy stating that A. haldemanii Gir. has 
the presternum distinctly spined, whereas it is clearly as amucronate as the prester- 
num of A. simplex." He falls into this error hecause he has not, or had not then, seen a 
specimen of A. haldemanii, which has tbe presternum distinctly spined. The descrip- 
tion and figure given in Marcy's Red River of Louisiana are so exact that with a true 
specimen in hand, as I now have before me, there is no possibility of making a mis- 
take. ' This species is never, as I leam he supposes, found west of the Rocky Mountain 
range, nor A. simplex ever found east of it, unless, possibly, in Montana. 
Cratypedes Putnami, Thomas. 
Mr. A. J. Chipman, who visited Southern Colorado in 1830 on behalf of the United 
States Entomological Commission, was fortunate enough to obtain a fine speci- 
men of this species, in color. From this I can now give the colors omitted in my 
original description: base of the wings, lemon yellow; hind tibiae, bright red. In 
the female the yellow spots of the elytra are not so distinct as in the male. The same 
is also true in reference to the dark bands on the posterior femora. 
At the close of his " Century of Orthoptera" (Reprint from .Proceedings Bost. Soc. 
Nat. Hist., vols. 12-20, 1879, page 84) Mr. Scudder, in speaking of Hippiscus lineatus, 
Scudd., remarks as follows : 
11 Hippiscus lineatus. — This species I had formerly described (in MSS.) under the new 
generic name Craiypedes, but, before publishing, concluded it best to include it in Hip- 
piscus. I do not recollect that I have ever mentioned this name to any one, and have 
never seen more than the single specimen of the specie's upon which I had proposed to 
found it, and which has never left my collection. It was, therefore, a complete mys- 
tery to me to find a closely allied species described by Mr. Thomas, Proc. Davenp. Acad. 
Nat. Sci., I, 257-58) as Cratypedes Putnami, with the remark, 'I have placed this species 
in this genus with some hesitancy, yet it certainly agrees very closely with it.' I dis- 
claim any proprietorship in the generic name, and do not know to what Mr. Thomas 
refers. This remark is offered simply to aid any future student who may search for 
the origin of the name." 
This statement hy Mr. Scudder indicates a forgetfulness on his part of what he has 
written, as the reader will see hy turning to his " List of Orthoptera, collected by Dr. 
A. S. Packard in Colorado and the neighboring Territories during the summer of 1875," 
page 267, where he will find the following statement: " Stenopelmatus oculatus and 
Cratypedes lineata are describedfrom specimens dried after immersion in alcohol." This 
remark is offered simply to aid any future student who may search for the origin of 
the name. 
CHAPTER XIII. 
FUBTHER FACTS ABOUT THE NATURAL ENEMIES OF THE 
LOCUSTS. 
(Plate XVI.) 
There is not much to add to the account in our First Report of the 
many different natural enemies of the Rocky Mountain Locnst, but what 
little we do add will serve to clear up some unsettled questions, and to 
give emphasis to the important part that some of the more minute ene- 
mies play in keeping this pest in check. 
Blister-beetle larvae.— The habit in these interesting larvae of 
