ORTHOPTEEA OF INDIANA. 237 



Male much smaller and more slender than the female; its general 

 color olive brown and yellowish. Face yellowish, the corners of the 

 mouth pitch brown. Antennse with basal two-thirds yellowish, the 

 apical club-shaped portion black on one side and pale on the other. 

 A narrow line running obliquely backward from each eye to the 

 pronotum and the lower third of lateral lobe of pronotum, yellowish. 

 Tegmina brownish, the disk more or less dusky near the base. Hind 

 femora yellowish with two or three oblique dusky bars on the upper 

 outer face, apex black; hind tibia pale, the spines tipped with black. 



Female: Face and sides of the head green; antennae pale at base, 

 the apical half dusky. A pale reddish bro^\TQ stripe extends from the 

 tip of vertex backward to the hind margin of the pronotum; this 

 bordered on each side by a black stripe which is much narrower on 

 the head. Sides of the pronotum green with a fuscous bar across the 

 middle. Tegmina smoky brown, the dorsal and anal fields each with 

 a bright green stripe; the latter notched above by the serrations of 

 a fuscous stripe, which lies between the two green areas; the wings, 

 smoky brown, tinged with greenish yellow at the base. Hind femora 

 with the upper lateral carina whitish; the upper outer face green, 

 the lower, reddish brown; hind tibiae as in male. The ground color 

 of the female is rarely brown, and that of the male rarely green. 

 The structural characters are given above under the genus heading. 



Measurements: Length of body, male, 22 mm., female, 35 mm.; 

 antennaB,male, 9.5 mm., female, 10 mm.; of pronotum, male, 4.5 mm., 

 female, 6 mm.; of tegmina, male, 18 mm., female, 27 mm.; of hind 

 femora, male, 17.5 mm., female, 24 mm. 



This prettily colored locust is nowhere common in Indiana, and as 

 yet has been taken only in the southern, half of the State, in Vigo, 

 Putnam, Marion, Monroe, Crawford, Floyd, Knox and Posey coun- 

 ties. It frequents, for the most part, high, open uplands, where the 

 soil is poor and covered with scant vegetation, though it is sometimes 

 found in timothy meadows and along roadsides where the grass has 

 been cropped short. But few individuals have been noted in any 

 one locality. It reaches maturity about August 1. The males differ 

 so much in size and color from the other sex that they are very apt 

 to be considered a distinct species. As the slender legs indicate, the 

 movements are made mostly by the wings, the flight being rapid and 

 noiseless. The range of admirabilis is given by MciSreill as "United 

 States east of the Eocky Mountains, extending as far north as Ne- 

 braska and northern Illinois, and on the Atlantic coast to Maryland." 



