ORTIIOPTERA OF INDIANA. 423 



damage which they cause to grass and kindred phmts in the course 

 of a single season must be great, and there is little doubt but that 

 this, as well as the other species of the geuns, should be classed 

 among those insects highly destructive to forage plants.* 



Mr. S. H. Scudder has given the following pleasing account of the 

 sounds made by this species: "The chirping of the striped cricket 

 is very similar to that of the black field cricket; and may be expressed 

 by r-r-r-u, pronounced as though it were a French word. The note 

 is trilled forcibly, and lasts a variable length of time. One of these 

 insects was once observed while singing to its mate. At first the 

 song was mild and frequently broken; afterwards it grew impetuous, 

 forcible and more prolonged; then it decreased in volume and ex- 

 tent until it became quite soft and feeble. At this point the male 

 began to approach the female, uttering a series of twittering chirps; 

 the female ran away, and the male, after a short chase, returned to 

 his old haunt, singing with the same vigor but with more frequent 

 pauses. At length, finding all persuasions unavailing, he brought 

 his serenade to a close." 



125. Nemobius canus Scudder. 



Nemobius canus Scudd., 17 5, IV, 1896, 100, 103; Id., 17 6, VII, 1896, 

 432; Id., 188, 1900, 88. 



Size, large; the head prominent, both it and the thorax sparingly 

 beset with black bristles. Head reddish or yellowish brown in color; 

 sparingly or not at all marked with fuscous and without trace of 

 l^lack bars on occiput. Eyes shorter, smaller and more globose than 

 in N. fascial us. Antenna and palpi yellowish brown. Pronotum 

 broader than long, the sides a little convex; yellowish brown in fe- 

 male, darker in male, the ■ sides in latter with a fuscous bar 

 on their posterior half. Tegmina of male covering three-fourths 

 of abdomen, yellowish brown above, darker on basal third, the 

 sides with a shining piceous bar along their upper third; those 

 of female covering half or a little more of abdomen, the stripe 

 on sides narrower and less shining than in male, sometimes 

 with an additional one on dorsal field. Abdomen reddish brown 

 with a median dark stripe on dorsal surface, and a similar one 

 along each side. Hind femora short and very stout, a uniform red- 

 dish brown, sometimes darker in the male. Ovipositor distinctly 

 longer than hind femora, straight or nearly so, the tip acute, the 

 serrated portion short, the teeth sharp, not crowded. 



* For other accounts of the destruction wrought by the species of Nemobius see Rathvon, 

 U.S. Agricultural Report, 1862, p. 380, and Osborne's Bulletin, 23, U. S. Division Ento- 

 mology, p. 59. 



