398 PROCEEDINGS OF THE ACADEMY OF [Sept., 



Colorado, Aug. 17, 2 6^. Knob Hill, Colorado Springs, Aug. 17 and 

 18, 4 c?, 6 9 . Prairie land, Colorado Springs, Aug. 18, 7 d", 10 9 . 



These specimens exhibit considerable variation in the intensity and 

 width of the bands of the tegmina in the female, some having them 

 very weak and broken up into spots, while a few have them as distinct 

 as in the males. The males are quite uniform in the coloration of the 

 tegmina, both in width of bars and intensity. 



This species was quite common on the prairie. The flight is slow 

 and specimens may be easily captured even without a net. 



BRACHYSTOLA Scudder. 

 Brachystola magna (Girard). 



Colorado Springs, Colorado, Aug. 18, 9 d^, 4 9,1 nymph. Knob 

 Hill, Colorado Springs, Aug. 17, 5 d^, 1 nymph. Prairie land, Colorado 

 Springs, Aug. 18 and 19, 2 d', 6 9,1 nymph. 



This series of thirty specimens clearly shows that the species has two 

 color phases and that the green phase should not be confused with 

 Charpentier's B. virescens, a Mexican species of a quite distinct char- 

 acter, as an examination of his plate will show. Of the series examined 

 eight are of the brown phase and twenty-one of the green, while one 

 is too discolored to determine its true color. The green specimens 

 vary considerably in the shade of the green, but the males appear to 

 have the richer coloration. 



There is considerable variation in the size of the males. 



The following color description is made from a female specimen in 

 the green phase from Colorado Springs received alive in Philadelphia 

 and carefully stuffed after death, to-day presenting the same coloration 

 as in life. 



Predominating color oil green. Head dark oil green above becoming 

 paler ventrad on the face and gense, the caudal margin of the gense, 

 the mandibles and broad band extending from cephalad of the eye 

 ventrad to the clypeal sulcus and the lateral portions of the clypeus 

 pale flesh color; eyes clay color sprinkled with bistre; antennae dusky, 

 margined laterad in the proximal section with pale greenish. Pro- 

 notum with the lateral and median carinse marked with very dark 

 French green, on the metazona extending slightly ventrad and some- 

 what suffusing the lateral lobes; lateral carinse bordered mesad by a 

 line of pinkish vinaceous; recurved caudal and lateral lobe margins 

 chiefly flesh color. Tegmina tawny ochraceous with fair-sized bistre 

 spots well distributed over them. Abdomen suffused with bistre 

 dorsad ; a pair of rather broad distinct longitudinal lines, one on each 

 side of the median carina, and a transverse series of spots on the caudal 



