230 FAMILY VI. ACRIDID.E. THE LOCUSTS. 



The principal synonyms of speciosa are StenobotJvrus (equalis 

 and bilineatus Scudder (1862, 459, 4GO) and *S'. gracilis Scudder 



(1872,250). 



II. DICHROMORPHA Morse, 1896, 326. (Gr., "two" + "colored.") 



Vertex much shorter than broad, its sides strongly elevated, 

 meeting in front in a blunt point, median carina and lateral foveo- 

 lae wholly wanting; frontal costa feebly sulcate, narrowed above 

 the antennae, its sides subparallel ; antenna? about the length of 

 head and pronotum together, the joints moderately flattened; pro- 

 notum with disk flat, the carinae distinct, straight, parallel, all 

 cut behind middle by the principal sulcus ; lateral lobes perpen- 

 dicular, longer than deep, the front and hind margins strongly 

 oblique, the latter plainly sinuate, lower margin strongly undu- 

 late; tegmina usually more or less aborted, rarely reaching the 

 end of abdomen ; hind femora stout, not banded ; hind tibite with 

 ten spines on outer margin, the inner apical spurs subequal ; sub- 

 genital plate of male short, conical, ascending, obtusely pointed ; 

 valves of ovipositor strongly exserted. 



99. DICHROMORPHA VIRIDIS (Scudder), 1862, 455. Short-winged Green 

 Locust. 



A medium sized robust species, the male much the smaller Color of 

 male dull brown, disk of pronotum and dorsal field of tegmina usually 

 bright green, rarely brown, face pale yellowish-brown; female either bright 

 green or dirty brown, often with a narrow dark line beginning behind the 

 eye and running along the upper portion of lateral lobe of pronotum; the 

 green form sometimes with sides of abdomen and upper face of hind fe- 

 mora blotched with fuscous. Tegmina ovate-lanceolate, about half the 

 length of abdomen, female, three-fourths its length, male; very rarely 

 reaching to or beyond the tip of abdomen. Hind femora reaching tip of 

 abdomen, female, surpassing it one-third their length, male. Length of 

 body, $, 1516, 5, 2327; of antennae, $ and 5 , 6.58.5; of pronotum, 

 $, 4, 9, 6; of tegmina, $, 69, $, S 9; of hind femora, $, 9.511.5', 

 9, 1415 mm. (Fig. 86.) 



This is a common locust throughout Indiana, frequenting the 

 borders of open woods, fence rows, roadsides, and especially the 

 vicinity of the coarse grasses which grow along the margins of 

 lakes, ponds and other wet places. There, as long as motionless, 

 they are invisible, and there they flourish in peace and countless 

 numbers. In southern Indiana I), ririrtis reaches maturity by 

 July 1st, and the sexes may be found mating from then until after 

 heavy frost. The brown female far outnumbers the green one in 

 this State, especially during the autumn days, when their hues 



