1906.] NATURAL SCIENCES OF PHILADELPHIA. 377 



Hippiscus neglectus (Thomas). 



Mammoth Hot Springs, Yellowstone Park, Aug. 5, 3 9 ; summit of 

 neighboring foothills, Aug. 5, 2 6^, 4 9 ; summit of foothills of Gallatin 

 Range, Aug. 5, 3 9 ; hill at head of springs, Aug. 5, 1 6^ ; top of bare 

 hill opposite Devil's Kitchen, Aug. 5, 1 d^, 3 9 . Upper Geyser Basin, 

 Yellowstone Park, Aug. 7, 1 9 . The Thumb, Yellowstone Park, Aug. 

 7, 1 d". Knob Hill, Colorado Springs, 7,000 feet, Aug. 17, 1 9 . 



This species varies considerably in size and greatly in the intensity 

 of the color pattern and the sutural stripe. Individuals from Camas 

 Prairie, Idaho, have been used for comparison. 



About the Mammoth Hot Springs this species was the most plentiful 

 of the larger Orthoptera. It preferred the hillsides to other locations, 

 and, owing to its somewhat lighter form than other species of the genus 

 found in that locality, it proved swift of flight and not always easy to 

 capture. The single specimen taken at The Thumb was found in a 

 small grassy space in the woods. Only one specimen was seen on the 

 grassy prairie at Knob Hill, Colorado Springs, 



LEPRUS Saussure. 

 Leprus interior Bruner. 



Salt Lake City, Utah, Aug. 13, 1 9 . Hillside at Salt Lake City, 

 Aug. 13 and 14, 4 d", 7 9. 



These individuals agree well with a pair received from Prof. Bruner 

 labelled Salt Lake City, and as a series are smaller and more conspicu- 

 ously colored than a pair of L. cyaneus from Nephista, Colorado. The 

 latter have the dark bars on the tegmina subobsolete, the light sutural 

 stripes and a transverse median light bar being the only distinct mark- 

 ings.- In the Salt Lake specimens the bars are distinct and rather 

 regular, comparatively little variation being exhibited. Several of 

 the latter specimens have the blue of the caudal tibiae weaker than in 

 the other individuals. 



This series was only taken after long and careful search. There was 

 but one place on the steepest portion of Ensign Peak where the insect 

 could be found, and although the females were easily captured when 

 found, the males flew vigorously. So steep was the hillside that it was 

 bare of everything but scattered grasses and an occasional sage-bush. 

 When at rest the insects were wonderfully protected by their colora- 

 tion. 



DISSOSTEIRA Scudder. 

 Dissosteira Carolina (Linnaeus). 



Billings, Yellowstone Co., Montana, Aug. 4, 1 6^, 1 9. Salt Lake 



