129 



I have given the above notes in order that every student who does not 

 happen to have access to the works containing the original descriptiono 

 may determine these different species for himself. 



27. Orchelimum nigripes Scudd. Topeka < flragin) ; Wakarusa (Wash- 

 burn Senior Nat. Hist. Excursion, Class of 1882). 



28. Orchelimum longripennis Scudd. Barber Co. (Cragin). 



The collection contains a single male of this species the first specimen 

 that I have ever seen. 



29. Orchelimum vulgrare Harr. Shawnee Co. (Cragin). 

 There are three specimens in the collection which I place here. 



30. Orchelimum agile De Geer. Topeka (Cragin). 



[ also find a single male among the others that comes very close to the 

 characters given for this species. 



31. Thyreonotus Cragini n. sp. The collection contains a single speci- 

 men (female) of an insect that is evidently undescribed, and which falls in 

 the group of Dect!.ci<ies in which the prosternum is armed with two spines. 

 In this group are contained the following two genera, to either of which 

 the insect in question might belong: Pterolepis and Thyreonotus. Not 

 having seen typical specimens of either of these genera, it is difficult for 

 me to decide in which, if either, of these genera it belongs, without further 

 study and a cnr^ful comparison of the descriptions of all the described 

 species of our North American Decticids that have appeared from time to 

 rime, and are scattered throughout various Government reports and pro- 

 ceedings of scientific societies. These described species twenty-two in 

 all are sadly in need of a thorough revision, and until this is accom- 

 plished, but little additional work can be done that will stand the test of 

 time. In order to do this, a large amount of material from all parts of the 

 country is absolutely necessary ; and that is what I do not possess in my 

 limited collection. Until I have had time for further study and compari- 

 son, I will label this specimen Thyreonotus Cragini. It can be known by 

 the following characters which are quite striking: Pron^tum large and 

 wide, broadest in front and below, rounded above, without carinse, slightly 

 flattened back of the middle, with the posterior margin evenly rounded. 

 Abdomen rather slender, gradually tapering posteriorly, with a slight carina 

 or ridge along the dorsum. Posterior femora nearly as long as the entire 

 body, without spines and considerably enlarged on their basal half; tibiae 

 as long as femora, thickly crowded along both edges on their apical three- 

 fifths with spines; also a few minute spines along their lower side. The 

 general color is dirty yellowish-green, with two rather broad stripes of brown 

 along the top of the pronotum. These bands become almost black upon 

 the posterior margin where they follow down the sides, as a sort of border 

 to the lower angle. Length of body, 34 mm.; of pronotum, 11.5 mm.; 

 of posterior femora, 31 mm.; of tibiae, 31 mm.; of ovipositor, 31 mm. 

 Barber Co. (Cragin). 



32. Thyreonotus Scudderi n. sp. There are also two males and two 

 females of a second and smaller species, which also appears to be new. I 

 will call it Thyreonotus Scudderi in honor of Prof. S. ^i. Scudder. who 



