130 



has done more toward describing and systematizing our North American 

 Orthnptera than any other individual. 



This species is a much smaller and slenderer insect than the preceding. 

 The vertex of the head is also much more rounded and more produced in 

 front of the eyes, which latter are fully as large as they are in that species. 

 The pronotum is not so swollen, nor has it the sides of the dorsum flattened 

 here as there; posterior margin nearly straight. Abdomen as in T.Cryini. 

 but more plainly carinated. Ovipositor rather short, curved upward and 

 tapering to a fine point. Posterior femora and tibiae as in tlm preceding 

 species. Cerci of the male forked, the inner finger slightly the shortest. 

 Purplish brown above, mottled and banded with ochraceous; brownish- 

 yellow below. Face yellow with a dark-brown streak commencing at the 

 base of each antenna and curving outward and downward upon the cheeks. 

 Prouotum with the front edge and sides bordered rather widely with yel- 

 low. Posterior femora with a dark-brown streak along the upper edge of 

 the basal half in some specimens, absent in others. Length of body 

 male, 18 mm., female, 24 mm.; of pronotum male, 5.65 mm., female, 

 8 mm. ; of posterior femora male 19 mm., female. 22 mm. ; of oviposi- 

 tor, 15 mm. Barber Co. and Great Salt Weil. Crooked Creek Valley. 

 Ford Co. (Cragin). 



33. Anabrus coloradus Thos. (?) Garden City (Cragin). 



There are two larvae of what I make out to be this insect, but which 

 may belong to some allied species, several of which occur in the same 

 vicinity. 



The foregoing families have been but sparingly studied in this country, 

 as will be seen by a comparison of the number of species in each, as found 

 here and in Europe. Of the Decticidinse, the group comprising the large 

 wingless Locustians that live above ground upon plants we have but 

 twenty described species, while in Europe there are upwards of eighty. 

 Other groups show equally irreat contrasts. Therefore it should be the 

 aim of collectors to work with a view of remedying this deficiency in par- 

 ticular directions. 



ACRIDID.E 



34. Oxyeor.vplms obscurus Thos. Several specimens from Shawnee 

 and Barber Cos. (Cragin). 



This locust usually occurs where the grasses are short and the climate 

 arid, and as a consequence, is to be met with most frequently upon the 

 plains, where the grasses are of the genus llouteloua and allied forms. 



35. >i i IIMI ia neo-mexicana Thos. The collection contains specimens 

 from Barber Co. (Craiiin) ; McPlierson Co. (Rundstrom) ; and Shawnee 

 Co. (H. J. Adams and R. E. McCampbel'). 



This locust frequents high hills and other localities where vegetation is 

 scattered. 



36. Mermiria bivittata Serv. A pair from Sun City, Barber Co., at 

 which locality a great many specimens of the locusts herein mentioned 

 were taken by Prof. Cragin. 



