48-1 FAMILY VII. TETTIGOXIIDJE. THE KATYDIDS. 



seen on the ground, or on the clumps of tall grass and weeds, 

 which grow in damp ravines, while its flight is comparatively 

 noiseless and less prolonged. In southern Indiana the males be- 

 come mature about the fifth of July, the females a week later. 



Pink individuals of rotundifolia have been recorded from Penn- 

 sylvania and New Jersey, but they appear to be much more scarce 

 than those of oblongi folia. 



The known range of typical A. rot imdi folia extends from the 

 White Mountain region of New England west to Michigan and 

 Minnesota, and south and west to South Carolina, northern Geor- 

 gia and western Arkansas. In western North Carolina, southern 

 Georgia and Alabama it is said by R. & H. (1914b, 336) to have 

 shorter wings, less evident humeral sinus and a broader disk of 

 pronotum, thus showing an intermediate form between typical 

 rot u nil i folia and the western race A. r. pan-ijicnnis Scudder. R. & 

 H. have also reduced A. iscliji Caud., described from Kansas and 

 known from Iowa and Missouri, to a race or variety of rotundi- 

 folia. It is not recorded from Canada, though it should occur 

 along the southern border. Lugger mentions it as common in 

 Minnesota, and Bruuer ( 1803a, 21)) as a "not uncommon species" 

 in the eastern part of Nebraska. In Virginia Fox says it is "taken 

 in shrubbery and undergrowth in or close to open deciduous woods 

 and apparently confined to the mountain sections of the State." 



Of the note of rotundifolia, Scudder (lS!:t, OS) says: "This 

 insect stridulates both by day and by night, and without variation 

 (Fig. 155, c). The song consists of from two to four notes- 

 sounding like cliic-a-cliee repeated rapidly so as to be almost con- 

 founded, and when three requiring just one-third of a second; the 

 song is repeated at will, generally once in about five seconds, for 

 an indefinite length of time." 



Allard (1011) says that near Oxford, Mass., in September, 

 A. rotundifolia "occurs everywhere in the grass, weeds and shrub- 

 bery of fields and pastures. Its notes may be heard at all times 

 during the day as well as during warm nights. They are soft, 

 lisping, continuing indefinitely, and may be expressed thus: 

 'Tsip4-tsip-i-tsip4-tsip4-tsip. } ' 



V. MICROOEXTRUM Scudder, 1862, 446. (Gr., "small" -f "point.") 

 Species of medium or large size, having the occiput convex, 

 fastigium obtuse, deflexed, more or less sulcate; eyes subglobose, 

 prominent; disk of pronotum flat, sides subparallel, lateral carinse 

 distinct, hind margin broadly rounded; humeral sinus deeply im- 

 pressed; lateral lobes perpendicular, much deeper than long, the 



