OKTHOPTERA OF INDIANA. 261 



disk. Antennas pale brown at base, the apical half darker. Tegmina 

 with two pale transverse bars on the middle of sides, which contrast 

 plainly with the larger dark patches between and on either side of 

 them. Inner wings transparent yellowish at base; the apical half 

 smoky brown, the apex darker. Hind femora indistinctly banded 

 with dull yellowish and dark brown. Hind tibia; dusky brown with 

 a pale ring near the base. 



Fig. 51. Encoptol ophus sordidm (Burm.). Male. (After Lugger. 1 



" Measurements: Length of body, male, 22 mm., female, 29 mm.; of 

 antennge, male, 10 mm., female, 9 mm.; of tegmina, male, 19 mm., 

 female, 24 mm.; of hind femora, male, 13.5 mm., female, 16 mm. 



The clouded locust is common throughout the State, maturing in 

 the central portion about August 1st, from eggs hatched in the 

 spring, and existing till December 1st, provided the autumn is a 

 favorable one. It frequents only dry upland timothy and clover 

 meadows, blue-grass pastures, roadsides, etc. When living in wood- 

 land pastures it frequents the sunny spots, seldom alighting in the 

 shade when flushed. The male stridulates on the wing during short 

 flights, seldom, if ever, in the more prolonged ones, which it makes 

 when frightened. The note is a harsh droning or buzzing sound, 

 somewhat resembling that of a bumblebee, but louder. It is begun 

 after the insect has risen three or four feet above the ground, and is 

 continued until it begins to descend, being kept up continuously 

 while it is fiyhig horizontally. The females usually leap for the first 

 two or three times they are disturbed, but if flushed a number of 

 times they use the wings in endeavoring to escape. 



'XXVIII. Camnula Stal (1873). 



Body short, tlie si/e below the average for the Oedipodinw, the 

 head compressed. Vertex with its disk ovate-oblong in male, broader 

 in female, its front half sloping downward, the apex rounded, the 

 lateral carinas distinct, the median carina very faint in the female, 

 absent in the male; the foveola? indistinct, narrowly triangular. 

 Frontal costa, not prominent, flat or nearly so, a little sulcate just 

 below the ocellus. Antennge short, filiform. Pronotum with its disk 



