120 Studies in Kansas Insects. 



A single male was taken at Denver, Colo., July 10. I have also speci- 

 mens from the Red River of the North (Kennicott) to Texas (Belfrage, 

 Boll). Boll's specimens were taken in Dallas county, June 6. Belfrage 

 found the species "common in sandy places" in October and November, 

 and a few also in June and July in the same state. The species seem to 

 vary somewhat, northern specimens differing from the southern in having 

 a paler band on the wings, the tegmina more distinctly fasciate, and the 

 disk of the pronotum more depressed at the posterior sulcation. It is 

 closely allied to T. vinculata Scudder, but the color at the base of the 

 wings is deeper, the black band is broader, the tegmina are rarely so dis- 

 tinctly fasciate, and the hind tibiae are red instead of yellow. 



Common in dry, hot, sandy places, especially on sand bars in dry stream 

 beds in western Kansas. This hopper is a lover of barren places, and 

 quite extended efforts to drive him elsewhere resulted in failure. In 

 Harper county, Kansas, in the summer of 1916, the author noted especially 

 the dividing line between the habitat of this species and the genus 

 Spharagemon. On absolutely barren, sandy places citrina was quite com- 

 mon, while Spharagemon was to be found in the grass and weeds im- 

 mediately surrounding these places. The thing that seemed remarkable 

 to me was that I could drive the species of Spharagemon out on the barren 

 places, but citrina, while they would fly over the grassy places, would in- 

 variably come back to bare ground to alight. 



This species is close to T. agrestis McN. The following characters will 

 usually separate them : No tooth on the lateral lobe of the pronotum ; 

 general color darker; maculations on the tegmina more distinct, however 

 not as distinct as in T. latif asciata ; disk of wings usually a brighter 

 lemon yellow, bands broader and darker. 



Measurements in Millimeters. 



Bodv. Tegmina. Post, femora. 



Female 31.8-29.1 34.4-30.2 15.5-14.5 



Male 27.3-24.8 30.5-25.2 13.6-11.1 



(See fig. 79, page 83.) 



Trimerotropis bruncri McN. 



Proc. Nat. Mus., vol. 23, 423. (Hadrotettix gracilis Bruner M. S.) 



Reddish brown, not strongly punctate with fuscous but very conspic- 

 uously banded on the tegmina and posterior femora; head, and less com- 

 monly the lateral lobes of the pronotum in front of the principal sulcus, 

 pallid; pronotum with a longitudinal whitish stripe on the upper part of 

 the lateral lobes, extending from the middle sulcus to the front margin; 

 below this, near the middle of the lobes, a second but smaller quadrate 

 spot of a similar color. Scutellum of the vertex somewhat (male) or 

 not (female) longer than wide (if the very slightly impressed median 

 foveolse are included as a part of the scutellum, the proportion of length 

 to breadth will be considerably increased) ; median carina present and 

 more or less distinct; eyes decidedly shorter than the genal grooves, even 

 in the male. Pronotum with the median carina very low, not bilobate on 

 the prozone; anterior margin decidedly angulate; metazone about twice 

 as long as the prozone, its disk evenly and very finely granulate; process 

 of the metazone decidedly acute-angled, with the margins straight and 

 the tip a little rounded. Tegmina, more especially in the male, narrowed 

 considerably and regularly from the basal band to the apex; basal and 

 median bands very distinct and solid, with the base rouged without 

 fuscous punctations and the apex with the usual scattered punctations, 



