ORTHOPTEEA OF INDIANA. 369 



Measurements: Male — Length of body, 30 mm.; of tegmina, 44 

 mm.; of hind femora, 23 mm.; of pronotum, 8 mm.; of cone, 2 mm. 

 Female — Length of body, 31 mm.; of tegmina, 48 mm.; of hind 

 femora, 26 mm.; of ovipositor, 26 mm. 



Fig. 91. Conocephalus robu8tu» Scndd. Female. Natural size. (After Be utenmiiller). 



This species seems to be an inhabitant of sandy districts and oc- 

 ■curs only along the Atlantic seacoast and the shores of the Great 

 Lakes. In Indiana it has been noted only in Laporte County, where 

 Prof. E. E. Slick found it quite frequently along the shore of Lake 

 Michigan during September and October. Of the specimens sent to 

 me — a half dozen males — he wrote: "They were caught off the trees, 

 in the dusk of the evening, as they were singing. They sang 

 {'whetted') continuously for ten minutes or longer while I watched 

 them." 



Mr. Scudder thus describes the note as heard in New England: 

 ■"Eobustus is exceedingly noisy and sings equally, and I believe simi- 

 larly, by day and night. The song resembles that of the harvest 

 Hy, Cicada canicularis. It often lasts for many minutes, and seems, 

 at a distance, to be quite uniform. On a nearer approach one can 

 hear it swelling and decreasing in volume * * * and it is accom- 

 panied by a buzzing sound, quite audible near at hand, which re- 

 sembles the hummiug of a bee or the droning of a bag-pipe." 



